{"id":12088,"date":"2024-10-18T17:34:43","date_gmt":"2024-10-18T09:34:43","guid":{"rendered":"https:\/\/xiairworld.com\/?p=12088"},"modified":"2025-01-06T15:01:06","modified_gmt":"2025-01-06T07:01:06","slug":"hoat-dong-khoa-hoc-danh-cho-tre-mau-giao","status":"publish","type":"post","link":"https:\/\/xiairworld.com\/vi\/science-activities-for-preschoolers\/","title":{"rendered":"35 Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc d\u1ec5 d\u00e0ng v\u00e0 tuy\u1ec7t v\u1eddi d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o"},"content":{"rendered":"

Khoa h\u1ecdc hi\u1ec7n di\u1ec7n kh\u1eafp n\u01a1i xung quanh ch\u00fang ta, v\u00e0 vi\u1ec7c gi\u1edbi thi\u1ec7u khoa h\u1ecdc cho tr\u1ebb m\u1ea7m non th\u00f4ng qua c\u00e1c ho\u1ea1t \u0111\u1ed9ng h\u1ea5p d\u1eabn c\u00f3 th\u1ec3 kh\u01a1i d\u1eady s\u1ef1 t\u00f2 m\u00f2 v\u00e0 nu\u00f4i d\u01b0\u1ee1ng t\u00ecnh y\u00eau h\u1ecdc t\u1eadp su\u1ed1t \u0111\u1eddi c\u1ee7a tr\u1ebb. Nh\u01b0ng \u0111\u00e2u l\u00e0 c\u00e1ch t\u1ed1t nh\u1ea5t \u0111\u1ec3 gi\u1edbi thi\u1ec7u c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc cho tr\u1ebb m\u1ea7m non? H\u00e3y c\u00f9ng kh\u00e1m ph\u00e1 t\u1ea7m quan tr\u1ecdng c\u1ee7a c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc \u0111\u1ed1i v\u1edbi tr\u1ebb nh\u1ecf, nh\u1eefng kh\u00e1i ni\u1ec7m ch\u00ednh m\u00e0 tr\u1ebb c\u1ea7n hi\u1ec3u v\u00e0 c\u00e1ch chu\u1ea9n b\u1ecb cho c\u00e1c th\u00ed nghi\u1ec7m khoa h\u1ecdc th\u00fa v\u1ecb, b\u1ed5 \u00edch trong l\u1edbp h\u1ecdc c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n

C\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o r\u1ea5t quan tr\u1ecdng v\u00ec ch\u00fang k\u00edch th\u00edch tr\u00ed t\u00f2 m\u00f2, ph\u00e1t tri\u1ec3n kh\u1ea3 n\u0103ng \u0111\u1ecdc vi\u1ebft v\u00e0 khuy\u1ebfn kh\u00edch h\u1ecdc t\u1eadp h\u1ee3p t\u00e1c. Ngo\u00e0i ra, nh\u1eefng ho\u1ea1t \u0111\u1ed9ng n\u00e0y c\u00f2n gi\u00fap tr\u1ebb ph\u00e1t tri\u1ec3n t\u01b0 duy ph\u1ea3n bi\u1ec7n v\u00e0 s\u00e1ng t\u1ea1o, nh\u1eefng k\u1ef9 n\u0103ng thi\u1ebft y\u1ebfu trong th\u1ebf gi\u1edbi ng\u00e0y nay.<\/p>\n\n\n\n

B\u1eb1ng c\u00e1ch l\u00e0m cho khoa h\u1ecdc tr\u1edf n\u00ean th\u00fa v\u1ecb v\u00e0 t\u01b0\u01a1ng t\u00e1c, ch\u00fang ta c\u00f3 th\u1ec3 gi\u00fap tr\u1ebb em t\u00f2 m\u00f2 h\u01a1n v\u1ec1 th\u1ebf gi\u1edbi xung quanh.<\/p>\n\n\n\n

T\u1ea7m quan tr\u1ecdng c\u1ee7a c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc \u0111\u1ed1i v\u1edbi tr\u1ebb m\u1eabu gi\u00e1o<\/h2>\n\n\n\n

C\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc \u1edf b\u1eadc m\u1ea7m non r\u1ea5t quan tr\u1ecdng cho s\u1ef1 ph\u00e1t tri\u1ec3n s\u1edbm c\u1ee7a tr\u1ebb v\u00ec ch\u00fang mang \u0111\u1ebfn c\u01a1 h\u1ed9i kh\u00e1m ph\u00e1 v\u00e0 t\u00ecm hi\u1ec3u m\u00f4i tr\u01b0\u1eddng xung quanh th\u00f4ng qua c\u00e1c th\u00ed nghi\u1ec7m th\u1ef1c h\u00e0nh. Nh\u1eefng ho\u1ea1t \u0111\u1ed9ng n\u00e0y t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn c\u00e1c v\u00f9ng kh\u00e1c nhau c\u1ee7a n\u00e3o b\u1ed9 tr\u1ebb, th\u00fac \u0111\u1ea9y s\u1ef1 ph\u00e1t tri\u1ec3n v\u1ec1 kh\u1ea3 n\u0103ng \u0111\u1ecdc vi\u1ebft, s\u00e1ng t\u1ea1o v\u00e0 k\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao ch\u00fang r\u1ea5t c\u1ea7n thi\u1ebft:<\/p>\n\n\n\n

    \n
  1. K\u00edch th\u00edch s\u1ef1 t\u00f2 m\u00f2<\/strong>: C\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o kh\u01a1i g\u1ee3i b\u1ea3n n\u0103ng t\u00f2 m\u00f2 t\u1ef1 nhi\u00ean c\u1ee7a tr\u1ebb. Tr\u1ebb m\u1eabu gi\u00e1o \u0111\u1eb7t ra v\u00f4 s\u1ed1 c\u00e2u h\u1ecfi, v\u00e0 khoa h\u1ecdc cho ph\u00e9p tr\u1ebb kh\u00e1m ph\u00e1 c\u00e2u tr\u1ea3 l\u1eddi th\u00f4ng qua kh\u00e1m ph\u00e1. \u0110\u1ed1i v\u1edbi tr\u1ebb m\u1eabu gi\u00e1o, c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u1edf khuy\u1ebfn kh\u00edch tr\u1ebb ti\u1ebfp t\u1ee5c th\u1eed nghi\u1ec7m.<\/li>\n\n\n\n
  2. Ph\u00e1t tri\u1ec3n kh\u1ea3 n\u0103ng \u0111\u1ecdc vi\u1ebft<\/strong>: Nhi\u1ec1u ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o bao g\u1ed3m h\u01b0\u1edbng d\u1eabn \u0111\u1ecdc, m\u00f4 t\u1ea3 quan s\u00e1t v\u00e0 th\u1ea3o lu\u1eadn v\u1ec1 k\u1ebft qu\u1ea3, gi\u00fap c\u1ea3i thi\u1ec7n v\u1ed1n t\u1eeb v\u1ef1ng v\u00e0 k\u1ef9 n\u0103ng ng\u00f4n ng\u1eef<\/a>V\u00ed d\u1ee5, vi\u1ec7c d\u00e1n nh\u00e3n c\u00e1c \u0111\u1ed3 v\u1eadt trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u00f9a thu d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o ho\u1eb7c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u00f9a xu\u00e2n d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o gi\u00fap m\u1edf r\u1ed9ng v\u1ed1n t\u1eeb v\u1ef1ng c\u1ee7a tr\u1ebb.<\/li>\n\n\n\n
  3. Th\u00fac \u0111\u1ea9y h\u1ecdc t\u1eadp h\u1ee3p t\u00e1c<\/strong>: C\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc nh\u00f3m nh\u1ecf d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o \u0111\u00f2i h\u1ecfi tinh th\u1ea7n \u0111\u1ed3ng \u0111\u1ed9i. Tr\u1ebb h\u1ecdc c\u00e1ch giao ti\u1ebfp, chia s\u1ebb v\u00e0 h\u1ee3p t\u00e1c khi gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1, t\u1eeb \u0111\u00f3 x\u00e2y d\u1ef1ng k\u1ef9 n\u0103ng x\u00e3 h\u1ed9i v\u00e0 giao ti\u1ebfp.<\/li>\n\n\n\n
  4. Khuy\u1ebfn kh\u00edch s\u1ef1 s\u00e1ng t\u1ea1o<\/strong>: C\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc s\u00e1ng t\u1ea1o d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o gi\u00fap tr\u1ebb t\u01b0 duy v\u01b0\u1ee3t gi\u1edbi h\u1ea1n. Tr\u1ebb th\u1eed nghi\u1ec7m v\u1edbi nhi\u1ec1u k\u1ebft qu\u1ea3 kh\u00e1c nhau, t\u1eeb \u0111\u00f3 ph\u00e1t tri\u1ec3n k\u1ef9 n\u0103ng t\u01b0 duy s\u00e1ng t\u1ea1o<\/a>. Cho d\u00f9 l\u00e0 ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc ngo\u00e0i tr\u1eddi d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, nh\u01b0 x\u00e2y d\u1ef1ng tr\u1ea1m th\u1eddi ti\u1ebft, hay ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u00f9a \u0111\u00f4ng d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, nh\u01b0 quan s\u00e1t c\u00e1c m\u1eabu s\u01b0\u01a1ng gi\u00e1, tr\u1ebb \u0111\u1ec1u h\u1ecdc c\u00e1ch suy ngh\u0129 s\u00e1ng t\u1ea1o.<\/li>\n\n\n\n
  5. Ph\u00e1t tri\u1ec3n t\u01b0 duy ph\u1ea3n bi\u1ec7n<\/strong>: C\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc t\u1ed1t nh\u1ea5t d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o t\u01b0 duy ph\u1ea3n bi\u1ec7n<\/a> b\u1eb1ng c\u00e1ch gi\u1edbi thi\u1ec7u cho tr\u1ebb em ph\u01b0\u01a1ng ph\u00e1p khoa h\u1ecdc. C\u00e1c em h\u1ecdc c\u00e1ch quan s\u00e1t, h\u00ecnh th\u00e0nh gi\u1ea3 thuy\u1ebft v\u00e0 ki\u1ec3m nghi\u1ec7m \u00fd t\u01b0\u1edfng c\u1ee7a m\u00ecnh b\u1eb1ng th\u1ef1c nghi\u1ec7m. Ngay c\u1ea3 nh\u1eefng th\u00ed nghi\u1ec7m \u0111\u01a1n gi\u1ea3n nh\u01b0 ho\u1ea1t \u0111\u1ed9ng c\u1ea3m quan khoa h\u1ecdc d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u1ea1o chai c\u1ea3m gi\u00e1c, c\u0169ng c\u00f3 th\u1ec3 d\u1ea1y tr\u1ebb em c\u00e1ch k\u1ebft n\u1ed1i gi\u1eefa nguy\u00ean nh\u00e2n v\u00e0 k\u1ebft qu\u1ea3.<\/li>\n<\/ol>\n\n\n\n
    \"\"<\/figure>\n\n\n\n

    Tr\u1ebb m\u1eabu gi\u00e1o c\u1ea7n hi\u1ec3u nh\u1eefng kh\u00e1i ni\u1ec7m khoa h\u1ecdc n\u00e0o?<\/h2>\n\n\n\n

    Khi d\u1ea1y c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc cho tr\u1ebb m\u1eabu gi\u00e1o, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i gi\u1edbi thi\u1ec7u c\u00e1c kh\u00e1i ni\u1ec7m khoa h\u1ecdc c\u01a1 b\u1ea3n theo c\u00e1ch c\u00e1c em c\u00f3 th\u1ec3 n\u1eafm b\u1eaft. Nh\u1eefng ki\u1ebfn th\u1ee9c n\u00e0y s\u1ebd x\u00e2y d\u1ef1ng n\u1ec1n t\u1ea3ng cho vi\u1ec7c h\u1ecdc t\u1eadp trong t\u01b0\u01a1ng lai, v\u00e0 tr\u1ebb em c\u00f3 th\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 th\u1ebf gi\u1edbi xung quanh khi t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c kh\u00e1i ni\u1ec7m n\u00e0y trong qu\u00e1 tr\u00ecnh vui ch\u01a1i. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng kh\u00e1i ni\u1ec7m ch\u00ednh c\u1ea7n t\u1eadp trung:<\/p>\n\n\n\n

      \n
    1. Nguy\u00ean nh\u00e2n v\u00e0 k\u1ebft qu\u1ea3<\/strong>: M\u1ed9t trong nh\u1eefng kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n nh\u1ea5t trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o l\u00e0 nguy\u00ean nh\u00e2n v\u00e0 k\u1ebft qu\u1ea3. Nh\u1eefng th\u00ed nghi\u1ec7m \u0111\u01a1n gi\u1ea3n nh\u01b0 k\u1ebft h\u1ee3p baking soda v\u00e0 gi\u1ea5m cho tr\u1ebb th\u1ea5y c\u00e1ch h\u00e0nh \u0111\u1ed9ng t\u1ea1o ra ph\u1ea3n \u1ee9ng. C\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc Montessori d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o th\u01b0\u1eddng nh\u1ea5n m\u1ea1nh v\u00e0o vi\u1ec7c h\u1ecdc t\u1eadp th\u1ef1c h\u00e0nh, kh\u00e1m ph\u00e1 n\u00e0y.<\/li>\n\n\n\n
    2. K\u1ef9 n\u0103ng quan s\u00e1t<\/strong>: Khuy\u1ebfn kh\u00edch tr\u1ebb quan s\u00e1t m\u00f4i tr\u01b0\u1eddng xung quanh. Nh\u1eefng ho\u1ea1t \u0111\u1ed9ng n\u00e0y gi\u00fap tr\u1ebb ch\u00fa \u00fd \u0111\u1ebfn chi ti\u1ebft h\u01a1n, d\u00f9 l\u00e0 ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u00f9a xu\u00e2n d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, nh\u01b0 quan s\u00e1t c\u00e2y c\u1ed1i ph\u00e1t tri\u1ec3n, hay ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u00f9a thu d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, nh\u01b0 quan s\u00e1t l\u00e1 c\u00e2y \u0111\u1ed5i m\u00e0u.<\/li>\n\n\n\n
    3. T\u1eeb v\u1ef1ng khoa h\u1ecdc c\u01a1 b\u1ea3n<\/strong>: Gi\u1edbi thi\u1ec7u c\u00e1c thu\u1eadt ng\u1eef \u0111\u01a1n gi\u1ea3n nh\u01b0 \u201cch\u00ecm v\u00e0 n\u1ed5i\u201d, \u201cr\u1eafn v\u00e0 l\u1ecfng\u201d ho\u1eb7c \u201cn\u00f3ng v\u00e0 l\u1ea1nh\u201d trong c\u00e1c th\u00ed nghi\u1ec7m. C\u00e1c ho\u1ea1t \u0111\u1ed9ng nh\u01b0 ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc trong nh\u00e0 d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o c\u00f3 th\u1ec3 t\u1eadp trung v\u00e0o c\u00e1c b\u00e0i h\u1ecdc t\u1eeb v\u1ef1ng n\u00e0y trong khi c\u00e1c em vui ch\u01a1i v\u00e0 h\u1ecdc t\u1eadp.<\/li>\n\n\n\n
    4. V\u00f2ng \u0111\u1eddi<\/strong>: D\u1ea1y tr\u1ebb v\u1ec1 v\u00f2ng \u0111\u1eddi c\u1ee7a th\u1ef1c v\u1eadt, \u0111\u1ed9ng v\u1eadt ho\u1eb7c c\u00f4n tr\u00f9ng. V\u00ed d\u1ee5, trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc h\u00e8 d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, b\u1ea1n c\u00f3 th\u1ec3 gieo h\u1ea1t gi\u1ed1ng v\u00e0 quan s\u00e1t ch\u00fang l\u1edbn l\u00ean, \u0111\u1ed3ng th\u1eddi gi\u1ea3i th\u00edch c\u00e1ch c\u00e2y ph\u00e1t tri\u1ec3n t\u1eeb h\u1ea1t gi\u1ed1ng th\u00e0nh c\u00e2y tr\u01b0\u1edfng th\u00e0nh.<\/li>\n\n\n\n
    5. C\u00e1c kh\u00e1i ni\u1ec7m v\u1eadt l\u00fd \u0111\u01a1n gi\u1ea3n<\/strong>: C\u00e1c ho\u1ea1t \u0111\u1ed9ng li\u00ean quan \u0111\u1ebfn \u0111\u01b0\u1eddng d\u1ed1c, r\u00f2ng r\u1ecdc ho\u1eb7c nam ch\u00e2m gi\u00fap tr\u1ebb l\u00e0m quen v\u1edbi c\u00e1c nguy\u00ean l\u00fd v\u1eadt l\u00fd c\u01a1 b\u1ea3n nh\u01b0 tr\u1ecdng l\u1ef1c v\u00e0 l\u1ef1c. C\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc v\u00e0 c\u1ea3m quan d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o c\u00f3 th\u1ec3 minh h\u1ecda nh\u1eefng kh\u00e1i ni\u1ec7m n\u00e0y th\u00f4ng qua tr\u00f2 ch\u01a1i x\u00fac gi\u00e1c.<\/li>\n\n\n\n
    6. Kh\u00e1m ph\u00e1 n\u0103m gi\u00e1c quan<\/strong>: Vi\u1ec7c k\u00edch th\u00edch c\u00e1c gi\u00e1c quan c\u1ee7a tr\u1ebb r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c h\u1ecdc khoa h\u1ecdc. C\u00e1c ho\u1ea1t \u0111\u1ed9ng c\u1ea3m quan khoa h\u1ecdc d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o bao g\u1ed3m kh\u1ee9u gi\u00e1c, x\u00fac gi\u00e1c v\u00e0 th\u00ednh gi\u00e1c gi\u00fap tr\u1ebb kh\u00e1m ph\u00e1 th\u1ebf gi\u1edbi m\u1ed9t c\u00e1ch to\u00e0n di\u1ec7n h\u01a1n.<\/li>\n<\/ol>\n\n\n\n

      B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c k\u1ebf ho\u1ea1ch b\u00e0i h\u1ecdc v\u1ec1 ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o t\u1eadp trung v\u00e0o c\u00e1c kh\u00e1i ni\u1ec7m n\u00e0y, gi\u00e1o vi\u00ean c\u00f3 th\u1ec3 gi\u1edbi thi\u1ec7u cho tr\u1ebb m\u1ed9t th\u1ebf gi\u1edbi kh\u00e1m ph\u00e1 d\u1ec5 hi\u1ec3u v\u00e0 th\u00fa v\u1ecb.<\/p>\n\n\n\n

      \"\"<\/figure>\n\n\n\n

      L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 chu\u1ea9n b\u1ecb cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc \u1edf tr\u01b0\u1eddng m\u1ea7m non?<\/h2>\n\n\n\n

      Vi\u1ec7c chu\u1ea9n b\u1ecb l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng \u0111\u1ec3 t\u1eadn d\u1ee5ng t\u1ed1i \u0111a c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc cho tr\u1ebb m\u1eabu gi\u00e1o. Vi\u1ec7c t\u1ea1o ra m\u1ed9t m\u00f4i tr\u01b0\u1eddng h\u1ecdc t\u1eadp c\u00f3 c\u1ea5u tr\u00fac v\u00e0 h\u1ea5p d\u1eabn \u0111\u1ea3m b\u1ea3o tr\u1ebb \u0111\u01b0\u1ee3c an to\u00e0n v\u00e0 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 trong qu\u00e1 tr\u00ecnh kh\u00e1m ph\u00e1 c\u00e1c kh\u00e1i ni\u1ec7m khoa h\u1ecdc m\u1edbi. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 m\u1eb9o gi\u00fap b\u1ea1n chu\u1ea9n b\u1ecb cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng h\u1ecdc t\u1eadp khoa h\u1ecdc cho tr\u1ebb m\u1eabu gi\u00e1o:<\/p>\n\n\n\n

        \n
      1. T\u1ea1o m\u00f4i tr\u01b0\u1eddng h\u1ecdc t\u1eadp<\/strong>: H\u00e3y d\u00e0nh m\u1ed9t kh\u00f4ng gian trong l\u1edbp h\u1ecdc \u0111\u1ec3 tr\u1ebb c\u00f3 th\u1ec3 th\u1eed nghi\u1ec7m v\u00e0 kh\u00e1m ph\u00e1 m\u1ed9t c\u00e1ch an to\u00e0n. S\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u d\u1ec5 ti\u1ebfp c\u1eadn v\u00e0 t\u1ea1o m\u00f4i tr\u01b0\u1eddng tr\u1ef1c quan h\u1ea5p d\u1eabn v\u1edbi c\u00e1c v\u1eadt tr\u01b0ng b\u00e0y kh\u01a1i g\u1ee3i s\u1ef1 h\u1ee9ng th\u00fa. V\u00ed d\u1ee5, c\u00f3 th\u1ec3 thi\u1ebft l\u1eadp m\u1ed9t ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc cho tr\u1ebb m\u1eabu gi\u00e1o, n\u01a1i tr\u1ebb c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c v\u1eadt li\u1ec7u nh\u01b0 k\u00ednh l\u00fap, c\u00e2n v\u00e0 c\u1ed1c \u0111ong.<\/li>\n\n\n\n
      2. K\u1ebft h\u1ee3p c\u00e1c ch\u1ee7 \u0111\u1ec1 h\u1ecdc t\u1eadp<\/strong>: K\u1ebft n\u1ed1i c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc v\u1edbi ph\u1ea1m vi r\u1ed9ng h\u01a1n ch\u1ee7 \u0111\u1ec1 l\u1edbp h\u1ecdc<\/a>V\u00ed d\u1ee5, n\u1ebfu ch\u1ee7 \u0111\u1ec1 c\u1ee7a b\u1ea1n l\u00e0 \u0111\u1ed9ng v\u1eadt, h\u00e3y th\u1eed m\u1ed9t ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc li\u00ean quan cho tr\u1ebb m\u1eabu gi\u00e1o, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u1ea1o m\u00f4i tr\u01b0\u1eddng s\u1ed1ng cho \u0111\u1ed9ng v\u1eadt ho\u1eb7c t\u00ecm hi\u1ec3u v\u1ec1 v\u00f2ng \u0111\u1eddi th\u00f4ng qua c\u00e1c ho\u1ea1t \u0111\u1ed9ng nh\u00f3m nh\u1ecf.<\/li>\n\n\n\n
      3. Ch\u1ecdn c\u00e1c th\u00ed nghi\u1ec7m ph\u00f9 h\u1ee3p v\u1edbi l\u1ee9a tu\u1ed5i<\/strong>: Ch\u1ecdn c\u00e1c ho\u1ea1t \u0111\u1ed9ng ph\u00f9 h\u1ee3p v\u1edbi tr\u1ebb nh\u1ecf, \u0111\u1ea3m b\u1ea3o c\u00e1c em vui v\u1ebb v\u00e0 an to\u00e0n. C\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc ngo\u00e0i tr\u1eddi d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o c\u00f3 th\u1ec3 bao g\u1ed3m kh\u00e1m ph\u00e1 c\u00e1c \u0111\u01b0\u1eddng m\u00f2n thi\u00ean nhi\u00ean, trong khi c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc trong nh\u00e0 d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o c\u00f3 th\u1ec3 t\u1eadp trung v\u00e0o c\u00e1c th\u00ed nghi\u1ec7m d\u1ef1a tr\u00ean gi\u00e1c quan nh\u01b0 kh\u00e1m ph\u00e1 c\u00e1c k\u1ebft c\u1ea5u kh\u00e1c nhau.<\/li>\n\n\n\n
      4. Th\u1ef1c hi\u1ec7n theo quy tr\u00ecnh t\u1eebng b\u01b0\u1edbc<\/strong>Tr\u1ebb m\u1eabu gi\u00e1o c\u1ea7n h\u01b0\u1edbng d\u1eabn r\u00f5 r\u00e0ng, \u0111\u01a1n gi\u1ea3n. H\u00e3y chia nh\u1ecf t\u1eebng b\u01b0\u1edbc c\u1ee7a ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tr\u1ebb hi\u1ec3u r\u00f5. V\u00ed d\u1ee5, \u0111\u1ed1i v\u1edbi c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc to\u00e1n h\u1ecdc d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, b\u1ea1n c\u00f3 th\u1ec3 y\u00eau c\u1ea7u tr\u1ebb \u0111ong nguy\u00ean li\u1ec7u \u0111\u1ec3 l\u00e0m n\u00fai l\u1eeda baking soda ho\u1eb7c \u0111\u1ebfm c\u00e1c v\u1eadt th\u1ec3 trong khi l\u00e0m th\u00ed nghi\u1ec7m.<\/li>\n\n\n\n
      5. Ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p<\/strong>: Chu\u1ea9n b\u1ecb v\u1eadt li\u1ec7u kh\u00f4ng \u0111\u1ed9c h\u1ea1i v\u00e0 th\u00e2n thi\u1ec7n v\u1edbi tr\u1ebb em cho m\u1ecdi th\u00ed nghi\u1ec7m. Nh\u1eefng v\u1eadt d\u1ee5ng h\u00e0ng ng\u00e0y nh\u01b0 n\u01b0\u1edbc, c\u00e1t v\u00e0 c\u00e1c v\u1eadt d\u1ee5ng gia \u0111\u00ecnh nh\u1ecf r\u1ea5t ph\u00f9 h\u1ee3p \u0111\u1ec3 t\u1ea1o ra c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc an to\u00e0n v\u00e0 h\u1ea5p d\u1eabn cho tr\u1ebb m\u1ea7m non.<\/li>\n\n\n\n
      6. An to\u00e0n l\u00e0 tr\u00ean h\u1ebft<\/strong>: Lu\u00f4n gi\u00e1m s\u00e1t ch\u1eb7t ch\u1ebd tr\u1ebb em trong su\u1ed1t qu\u00e1 tr\u00ecnh th\u00ed nghi\u1ec7m. \u0110\u1ea3m b\u1ea3o s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u an to\u00e0n cho tr\u1ebb em v\u00e0 gi\u1ea3i th\u00edch m\u1ecdi r\u1ee7i ro ti\u1ec1m \u1ea9n tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<\/ol>\n\n\n\n

        B\u1eb1ng c\u00e1ch chu\u1ea9n b\u1ecb k\u1ef9 l\u01b0\u1ee1ng v\u00e0 l\u1ef1a ch\u1ecdn c\u00e1c th\u00ed nghi\u1ec7m ph\u00f9 h\u1ee3p, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o ra tr\u1ea3i nghi\u1ec7m h\u1ecdc t\u1eadp n\u0103ng \u0111\u1ed9ng cho tr\u1ebb em th\u00f4ng qua c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u1edf d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o.<\/p>\n\n\n\n

        \"\"<\/figure>\n\n\n\n

        Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o<\/h2>\n\n\n\n

        Gi\u1edd b\u1ea1n \u0111\u00e3 s\u1eb5n s\u00e0ng, h\u00e3y c\u00f9ng kh\u00e1m ph\u00e1 m\u1ed9t s\u1ed1 ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc hay nh\u1ea5t d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o. M\u1ed7i th\u00ed nghi\u1ec7m \u0111\u1ec1u d\u1ec5 thi\u1ebft l\u1eadp v\u00e0 s\u1eed d\u1ee5ng nh\u1eefng v\u1eadt li\u1ec7u m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 \u0111\u00e3 c\u00f3 s\u1eb5n. C\u00f3 nh\u1eefng ho\u1ea1t \u0111\u1ed9ng ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng m\u00f9a, t\u1eeb c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u00f9a thu cho tr\u1ebb m\u1eabu gi\u00e1o \u0111\u1ebfn c\u00e1c th\u00ed nghi\u1ec7m th\u00fa v\u1ecb v\u00e0o m\u00f9a \u0111\u00f4ng.<\/p>\n\n\n\n

        1. Baking Soda v\u00e0 gi\u1ea5m n\u00fai l\u1eeda<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: Baking soda, gi\u1ea5m, x\u00e0 ph\u00f2ng r\u1eeda ch\u00e9n, ph\u1ea9m m\u00e0u th\u1ef1c ph\u1ea9m, h\u1ed9p nh\u1ecf, khay.<\/p>\n\n\n\n

        Th\u00ed nghi\u1ec7m kinh \u0111i\u1ec3n n\u00e0y gi\u1edbi thi\u1ec7u cho tr\u1ebb em v\u1ec1 ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc. K\u1ebft h\u1ee3p baking soda (baz\u01a1) v\u00e0 gi\u1ea5m (axit) t\u1ea1o ra m\u1ed9t v\u1ee5 phun tr\u00e0o s\u1ee7i b\u1ecdt m\u00f4 ph\u1ecfng n\u00fai l\u1eeda. Th\u00eam n\u01b0\u1edbc r\u1eeda ch\u00e9n gi\u00fap b\u1ecdt kh\u00ed t\u1ed3n t\u1ea1i l\u00e2u h\u01a1n, trong khi m\u00e0u th\u1ef1c ph\u1ea9m l\u00e0m cho "dung nham" tr\u1edf n\u00ean th\u00fa v\u1ecb v\u00e0 tr\u1ef1c quan h\u01a1n. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc n\u00e0y d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o r\u1ea5t h\u1eefu \u00edch \u0111\u1ec3 d\u1ea1y tr\u1ebb v\u1ec1 nguy\u00ean nh\u00e2n v\u00e0 k\u1ebft qu\u1ea3, \u0111\u1ed3ng th\u1eddi gi\u1edbi thi\u1ec7u kh\u00e1i ni\u1ec7m axit v\u00e0 baz\u01a1.<\/p>\n\n\n\n

        2. Cu\u1ed9c \u0111ua tan b\u0103ng<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: \u0110\u00e1 vi\u00ean, mu\u1ed1i, m\u00e0u th\u1ef1c ph\u1ea9m, n\u01b0\u1edbc.<\/p>\n\n\n\n

        Trong th\u00ed nghi\u1ec7m n\u00e0y, tr\u1ebb em s\u1ebd t\u00ecm hi\u1ec3u v\u1ec1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 v\u00e0 t\u00ednh ch\u1ea5t c\u1ee7a mu\u1ed1i. H\u00e3y \u0111\u1ec3 tr\u1ebb ch\u1ea1y \u0111ua l\u00e0m tan \u0111\u00e1 vi\u00ean b\u1eb1ng mu\u1ed1i v\u00e0 n\u01b0\u1edbc. Vi\u1ec7c th\u00eam m\u00e0u th\u1ef1c ph\u1ea9m s\u1ebd gi\u00fap tr\u1ebb theo d\u00f5i tr\u1ef1c quan t\u1ed1c \u0111\u1ed9 tan ch\u1ea3y c\u1ee7a \u0111\u00e1. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u00f9a \u0111\u00f4ng d\u1ec5 nh\u1ea5t d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, gi\u00fap tr\u1ebb h\u1ecdc v\u1ec1 nhi\u1ec7t \u0111\u1ed9 \u0111\u00f3ng b\u0103ng v\u00e0 nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y.<\/p>\n\n\n\n

        3. Ch\u00ecm hay N\u1ed5i<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: Nhi\u1ec1u v\u1eadt nh\u1ecf kh\u00e1c nhau (\u0111\u00e1, b\u1ecdt bi\u1ec3n, \u0111\u1ed3 ch\u01a1i b\u1eb1ng nh\u1ef1a), b\u00ecnh \u0111\u1ef1ng n\u01b0\u1edbc.<\/p>\n\n\n\n

        Tr\u1ebb m\u1eabu gi\u00e1o c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c kh\u00e1i ni\u1ec7m v\u1ec1 kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang v\u00e0 l\u1ef1c n\u1ed5i th\u00f4ng qua ho\u1ea1t \u0111\u1ed9ng d\u01b0\u1edbi n\u01b0\u1edbc th\u00fa v\u1ecb n\u00e0y. H\u00e3y \u0111\u1ec3 tr\u1ebb \u0111o\u00e1n xem c\u00e1c v\u1eadt th\u1ec3 kh\u00e1c nhau s\u1ebd ch\u00ecm hay n\u1ed5i, sau \u0111\u00f3 ki\u1ec3m tra d\u1ef1 \u0111o\u00e1n c\u1ee7a tr\u1ebb. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc c\u1ea3m gi\u00e1c n\u00e0y d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o k\u00edch th\u00edch c\u00e1c gi\u00e1c quan x\u00fac gi\u00e1c v\u00e0 gi\u00fap ph\u00e1t tri\u1ec3n k\u1ef9 n\u0103ng quan s\u00e1t.<\/p>\n\n\n\n

        4. Pha m\u00e0u v\u1edbi n\u01b0\u1edbc<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: N\u01b0\u1edbc, m\u00e0u th\u1ef1c ph\u1ea9m, c\u1ed1c trong su\u1ed1t.<\/p>\n\n\n\n

        Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc d\u1ec5 d\u00e0ng n\u00e0y d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, gi\u00fap b\u00e9 h\u1ecdc v\u1ec1 m\u00e0u c\u01a1 b\u1ea3n v\u00e0 m\u00e0u th\u1ee9 c\u1ea5p. H\u00e3y \u0111\u1ed5 \u0111\u1ea7y n\u01b0\u1edbc v\u00e0 c\u00e1c lo\u1ea1i ph\u1ea9m m\u00e0u th\u1ef1c ph\u1ea9m kh\u00e1c nhau v\u00e0o c\u1ed1c, sau \u0111\u00f3 cho tr\u1ebb pha tr\u1ed9n c\u00e1c m\u00e0u v\u00e0o c\u00e1c h\u1ed9p \u0111\u1ef1ng ri\u00eang bi\u1ec7t. Quan s\u00e1t s\u1ef1 thay \u0111\u1ed5i m\u00e0u s\u1eafc l\u00e0 m\u1ed9t c\u00e1ch th\u00fa v\u1ecb v\u00e0 th\u1ef1c h\u00e0nh \u0111\u1ec3 tr\u1ebb m\u1eabu gi\u00e1o h\u1ecdc v\u1ec1 l\u00fd thuy\u1ebft m\u00e0u s\u1eafc v\u00e0 ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc.<\/p>\n\n\n\n

        5. Tr\u1ed3ng h\u1ea1t gi\u1ed1ng<\/h3>\n\n\n\n
        \"\"<\/figure>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: H\u1ea1t gi\u1ed1ng, \u0111\u1ea5t, ch\u1eadu nh\u1ecf, n\u01b0\u1edbc.<\/p>\n\n\n\n

        Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u00f9a xu\u00e2n n\u00e0y d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, gi\u1edbi thi\u1ec7u cho tr\u1ebb v\u1ec1 sinh h\u1ecdc th\u1ef1c v\u1eadt v\u00e0 v\u00f2ng \u0111\u1eddi c\u1ee7a c\u00e2y. Th\u00f4ng qua vi\u1ec7c tr\u1ed3ng v\u00e0 quan s\u00e1t h\u1ea1t gi\u1ed1ng n\u1ea3y m\u1ea7m, tr\u1ebb m\u1eabu gi\u00e1o s\u1ebd h\u1ecdc \u0111\u01b0\u1ee3c nh\u1eefng g\u00ec c\u00e2y c\u1ea7n \u0111\u1ec3 ph\u00e1t tri\u1ec3n - \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi, n\u01b0\u1edbc v\u00e0 \u0111\u1ea5t. C\u00e1c em s\u1ebd c\u00f3 th\u1ec3 quan s\u00e1t nh\u1eefng thay \u0111\u1ed5i h\u00e0ng ng\u00e0y v\u00e0 hi\u1ec3u \u0111\u01b0\u1ee3c nh\u1eefng \u0111i\u1ec1u c\u01a1 b\u1ea3n v\u1ec1 s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y.<\/p>\n\n\n\n

        6. Ch\u01a1i b\u00f3ng<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: \u0110\u00e8n pin, nhi\u1ec1u v\u1eadt th\u1ec3 kh\u00e1c nhau, t\u01b0\u1eddng ho\u1eb7c m\u00e0n h\u00ecnh.<\/p>\n\n\n\n

        Trong ho\u1ea1t \u0111\u1ed9ng trung t\u00e2m khoa h\u1ecdc d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o n\u00e0y, tr\u1ebb s\u1ebd h\u1ecdc v\u1ec1 \u00e1nh s\u00e1ng v\u00e0 b\u00f3ng t\u1ed1i b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng \u0111\u00e8n pin \u0111\u1ec3 t\u1ea1o b\u00f3ng c\u1ee7a nhi\u1ec1u v\u1eadt th\u1ec3 kh\u00e1c nhau. Tr\u1ebb c\u00f3 th\u1ec3 di chuy\u1ec3n c\u00e1c v\u1eadt th\u1ec3 l\u1ea1i g\u1ea7n ho\u1eb7c ra xa \u00e1nh s\u00e1ng \u0111\u1ec3 xem k\u00edch th\u01b0\u1edbc b\u00f3ng thay \u0111\u1ed5i nh\u01b0 th\u1ebf n\u00e0o, t\u1eeb \u0111\u00f3 l\u00e0m quen v\u1edbi c\u00e1c kh\u00e1i ni\u1ec7m v\u1ec1 \u00e1nh s\u00e1ng v\u00e0 kh\u00f4ng gian.<\/p>\n\n\n\n

        7. Nam ch\u00e2m vui nh\u1ed9n<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u:<\/strong> Nam ch\u00e2m v\u00e0 nhi\u1ec1u v\u1eadt nh\u1ecf kh\u00e1c (k\u1eb9p gi\u1ea5y, th\u00eca, \u0111\u1ed3ng xu).<\/p>\n\n\n\n

        Th\u00ed nghi\u1ec7m n\u00e0y gi\u1edbi thi\u1ec7u cho tr\u1ebb em kh\u00e1i ni\u1ec7m v\u1ec1 t\u1eeb t\u00ednh. H\u00e3y \u0111\u1ec3 c\u00e1c em kh\u00e1m ph\u00e1 xem v\u1eadt n\u00e0o b\u1ecb nam ch\u00e2m h\u00fat v\u00e0 v\u1eadt n\u00e0o th\u00ec kh\u00f4ng. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc nh\u00f3m nh\u1ecf mang t\u00ednh t\u01b0\u01a1ng t\u00e1c cao nh\u1ea5t d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, v\u00ec tr\u1ebb em c\u00f3 th\u1ec3 l\u1ea7n l\u01b0\u1ee3t th\u1eed nghi\u1ec7m c\u00e1c v\u1eadt th\u1ec3 kh\u00e1c nhau v\u00e0 kh\u00e1m ph\u00e1 c\u00e1ch nam ch\u00e2m ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n

        8. C\u1ea7u v\u1ed3ng trong l\u1ecd<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: N\u01b0\u1edbc, \u0111\u01b0\u1eddng, m\u00e0u th\u1ef1c ph\u1ea9m, l\u1ecd trong su\u1ed1t.<\/p>\n\n\n\n

        T\u1ea1o hi\u1ec7u \u1ee9ng c\u1ea7u v\u1ed3ng trong l\u1ecd b\u1eb1ng c\u00e1ch x\u1ebfp l\u1edbp n\u01b0\u1edbc m\u00e0u v\u1edbi c\u00e1c n\u1ed3ng \u0111\u1ed9 \u0111\u01b0\u1eddng kh\u00e1c nhau. Th\u00ed nghi\u1ec7m n\u00e0y d\u1ea1y tr\u1ebb v\u1ec1 kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang v\u00e0 c\u00e1ch c\u00e1c ch\u1ea5t kh\u00e1c nhau t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o n\u00e0y v\u1eeba \u0111\u1eb9p m\u1eaft v\u1eeba b\u1ed5 \u00edch.<\/p>\n\n\n\n

        9. T\u00ean l\u1eeda b\u00f3ng bay<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: B\u00f3ng bay, d\u00e2y, b\u0103ng d\u00ednh, \u1ed1ng h\u00fat.<\/p>\n\n\n\n

        Th\u00ed nghi\u1ec7m n\u00e0y d\u1ea1y tr\u1ebb m\u1eabu gi\u00e1o v\u1ec1 l\u1ef1c \u0111\u1ea9y v\u00e0 \u0110\u1ecbnh lu\u1eadt chuy\u1ec3n \u0111\u1ed9ng th\u1ee9 ba c\u1ee7a Newton<\/a>. Bu\u1ed9c m\u1ed9t qu\u1ea3 b\u00f3ng bay v\u00e0o m\u1ed9t \u1ed1ng h\u00fat lu\u1ed3n qua m\u1ed9t s\u1ee3i d\u00e2y, c\u1ed1 \u0111\u1ecbnh n\u00f3 l\u1ea1i v\u00e0 th\u1ea3 n\u00f3 ra. Khi kh\u00f4ng kh\u00ed tho\u00e1t ra, qu\u1ea3 b\u00f3ng s\u1ebd bay v\u1ec1 ph\u00eda tr\u01b0\u1edbc, th\u1ec3 hi\u1ec7n h\u00e0nh \u0111\u1ed9ng v\u00e0 ph\u1ea3n \u1ee9ng.<\/p>\n\n\n\n

        10. \u0110\u1ed3 th\u1ee7 c\u00f4ng v\u1ec1 v\u00f2ng \u0111\u1eddi c\u1ee7a b\u01b0\u1edbm<\/h3>\n\n\n\n
        \"\"<\/figure>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: Gi\u1ea5y, keo d\u00e1n, k\u00e9o, v\u1eadt li\u1ec7u t\u00f4 m\u00e0u.<\/p>\n\n\n\n

        Trong ho\u1ea1t \u0111\u1ed9ng n\u00e0y, tr\u1ebb s\u1ebd \u0111\u01b0\u1ee3c t\u00e1i hi\u1ec7n v\u00f2ng \u0111\u1eddi c\u1ee7a m\u1ed9t con b\u01b0\u1edbm t\u1eeb tr\u1ee9ng \u0111\u1ebfn s\u00e2u b\u01b0\u1edbm, nh\u1ed9ng v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 m\u1ed9t con b\u01b0\u1edbm b\u1eb1ng c\u00e1c v\u1eadt li\u1ec7u th\u1ee7 c\u00f4ng. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc th\u1ef1c h\u00e0nh d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o n\u00e0y s\u1ebd d\u1ea1y tr\u1ebb v\u1ec1 sinh h\u1ecdc v\u00e0 v\u00f2ng \u0111\u1eddi m\u1ed9t c\u00e1ch s\u00e1ng t\u1ea1o. Ho\u1ea1t \u0111\u1ed9ng n\u00e0y gi\u00fap tr\u1ebb hi\u1ec3u \u0111\u01b0\u1ee3c c\u00e1ch c\u00e1c sinh v\u1eadt s\u1ed1ng ph\u00e1t tri\u1ec3n v\u00e0 thay \u0111\u1ed5i. Tr\u1ebb c\u0169ng s\u1ebd ph\u00e1t tri\u1ec3n k\u1ef9 n\u0103ng v\u1eadn \u0111\u1ed9ng tinh<\/a> trong khi h\u1ecdc c\u00e1c kh\u00e1i ni\u1ec7m khoa h\u1ecdc khi c\u1eaft v\u00e0 d\u00e1n.<\/p>\n\n\n\n

        11. T\u1ea1o l\u1ed1c xo\u00e1y trong chai<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: Hai chai nh\u1ef1a, n\u01b0\u1edbc, b\u0103ng keo.<\/p>\n\n\n\n

        Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc trong nh\u00e0 d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o n\u00e0y s\u1ebd cho tr\u1ebb th\u1ea5y c\u00e1ch h\u00ecnh th\u00e0nh l\u1ed1c xo\u00e1y. \u0110\u1ed5 \u0111\u1ea7y n\u01b0\u1edbc v\u00e0o m\u1ed9t chai, d\u00f9ng b\u0103ng d\u00ednh d\u00e1n ng\u01b0\u1ee3c chai c\u00f2n l\u1ea1i l\u00ean mi\u1ec7ng chai, v\u00e0 xo\u00e1y n\u01b0\u1edbc \u0111\u1ec3 t\u1ea1o th\u00e0nh xo\u00e1y n\u01b0\u1edbc. Tr\u1ebb m\u1eabu gi\u00e1o s\u1ebd \u0111\u01b0\u1ee3c t\u00ecm hi\u1ec3u v\u1ec1 c\u00e1c l\u1ef1c h\u00ecnh th\u00e0nh l\u1ed1c xo\u00e1y, gi\u1edbi thi\u1ec7u cho tr\u1ebb c\u00e1c kh\u00e1i ni\u1ec7m v\u1ec1 xo\u00e1y n\u01b0\u1edbc v\u00e0 \u0111\u1ed9ng l\u1ef1c h\u1ecdc \u00e1p su\u1ea5t kh\u00f4ng kh\u00ed. \u0110\u00e2y l\u00e0 m\u1ed9t c\u00e1ch tr\u1ef1c quan, \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c ki\u1ec3u th\u1eddi ti\u1ebft, l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u00f9a thu cho tr\u1ebb m\u1eabu gi\u00e1o.<\/p>\n\n\n\n

        12. Th\u1eed th\u00e1ch th\u1ea3 tr\u1ee9ng<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: Tr\u1ee9ng, nhi\u1ec1u lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u1ec7m kh\u00e1c nhau (b\u00f4ng, m\u00e0ng x\u1ed1p bong b\u00f3ng, x\u1ed1p).<\/p>\n\n\n\n

        Trong ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u1edf d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o n\u00e0y, tr\u1ebb s\u1ebd t\u1ea1o ra m\u1ed9t l\u1edbp b\u1ea3o v\u1ec7 xung quanh qu\u1ea3 tr\u1ee9ng \u0111\u1ec3 ng\u0103n tr\u1ee9ng v\u1ee1 khi b\u1ecb r\u01a1i. Ho\u1ea1t \u0111\u1ed9ng n\u00e0y khuy\u1ebfn kh\u00edch tr\u1ebb t\u01b0 duy nh\u01b0 nh\u1eefng k\u1ef9 s\u01b0, s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p th\u1eed v\u00e0 sai \u0111\u1ec3 thi\u1ebft k\u1ebf m\u1ed9t c\u1ea5u tr\u00fac b\u1ea3o v\u1ec7. Ho\u1ea1t \u0111\u1ed9ng n\u00e0y d\u1ea1y c\u00e1c kh\u00e1i ni\u1ec7m v\u1eadt l\u00fd (tr\u1ecdng l\u1ef1c, va ch\u1ea1m v\u00e0 l\u1ef1c) v\u00e0 x\u00e2y d\u1ef1ng k\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 khi tr\u1ebb th\u1eed nghi\u1ec7m v\u1edbi c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c nhau.<\/p>\n\n\n\n

        13. T\u0129nh \u0111i\u1ec7n trong b\u00f3ng bay<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: B\u00f3ng bay, nh\u1eefng m\u1ea3nh gi\u1ea5y nh\u1ecf.<\/p>\n\n\n\n

        Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc t\u01b0\u01a1ng t\u00e1c th\u00fa v\u1ecb n\u00e0y d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, gi\u00fap b\u00e9 l\u00e0m quen v\u1edbi t\u0129nh \u0111i\u1ec7n. H\u00e3y th\u1eed ch\u00e0 m\u1ed9t qu\u1ea3 b\u00f3ng bay ho\u1eb7c \u00e1o len l\u00ean \u0111\u1ea7u, \u0111\u01b0a n\u00f3 l\u1ea1i g\u1ea7n nh\u1eefng m\u1ea3nh gi\u1ea5y nh\u1ecf v\u00e0 quan s\u00e1t ch\u00fang d\u00ednh v\u00e0o nhau. \u0110\u00e2y l\u00e0 m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n v\u00e0 hi\u1ec7u qu\u1ea3 \u0111\u1ec3 gi\u1ea3i th\u00edch nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u0129nh \u0111i\u1ec7n b\u1eb1ng c\u00e1ch cho tr\u1ebb th\u1ea5y c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c nhau c\u00f3 th\u1ec3 t\u1ea1o ra \u0111i\u1ec7n t\u00edch khi c\u1ecd x\u00e1t v\u00e0o nhau nh\u01b0 th\u1ebf n\u00e0o.<\/p>\n\n\n\n

        14. \u0110\u00e0n Xylophone n\u01b0\u1edbc<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: L\u1ecd th\u1ee7y tinh, n\u01b0\u1edbc, m\u00e0u th\u1ef1c ph\u1ea9m, th\u00eca.<\/p>\n\n\n\n

        B\u1eb1ng c\u00e1ch \u0111\u1ed5 \u0111\u1ea7y c\u00e1c l\u1ecd th\u1ee7y tinh v\u1edbi l\u01b0\u1ee3ng n\u01b0\u1edbc kh\u00e1c nhau v\u00e0 cho tr\u1ebb d\u00f9ng th\u00eca g\u00f5 nh\u1eb9 v\u00e0o l\u1ecd, ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc d\u00e0nh cho tr\u1ebb m\u1ea7m non n\u00e0y gi\u00fap tr\u1ebb l\u00e0m quen v\u1edbi s\u00f3ng \u00e2m v\u00e0 rung \u0111\u1ed9ng. M\u1ed7i l\u1ecd t\u1ea1o ra m\u1ed9t cao \u0111\u1ed9 kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o l\u01b0\u1ee3ng n\u01b0\u1edbc b\u00ean trong. Ho\u1ea1t \u0111\u1ed9ng n\u00e0y k\u1ebft h\u1ee3p khoa h\u1ecdc v\u00e0 \u00e2m nh\u1ea1c m\u1ed9t c\u00e1ch ho\u00e0n h\u1ea3o, l\u00fd t\u01b0\u1edfng cho vi\u1ec7c h\u1ecdc t\u1eadp s\u00e1ng t\u1ea1o v\u00e0 gi\u00e0u c\u1ea3m gi\u00e1c.<\/p>\n\n\n\n

        15. Ch\u00e0 x\u00e1t l\u00e1<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: Gi\u1ea5y, b\u00fat m\u00e0u, l\u00e1.<\/p>\n\n\n\n

        Tr\u1ebb em c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 thi\u00ean nhi\u00ean v\u1edbi ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u00f9a thu d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o n\u00e0y b\u1eb1ng c\u00e1ch t\u1ea1o ra c\u00e1c h\u00ecnh v\u1ebd l\u00e1 c\u00e2y. \u0110\u1eb7t m\u1ed9t chi\u1ebfc l\u00e1 d\u01b0\u1edbi m\u1ed9t t\u1edd gi\u1ea5y v\u00e0 d\u00f9ng b\u00fat m\u00e0u v\u1ebd l\u00ean tr\u00ean \u0111\u1ec3 l\u00e0m n\u1ed5i b\u1eadt k\u1ebft c\u1ea5u v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a l\u00e1. Ho\u1ea1t \u0111\u1ed9ng n\u00e0y d\u1ea1y tr\u1ebb m\u1eabu gi\u00e1o v\u1ec1 c\u00e1c c\u1ea5u tr\u00fac th\u1ef1c v\u1eadt kh\u00e1c nhau v\u00e0 khuy\u1ebfn kh\u00edch c\u00e1c em quan s\u00e1t k\u1ef9 m\u00f4i tr\u01b0\u1eddng t\u1ef1 nhi\u00ean.<\/p>\n\n\n\n

        16. \u0110\u00e1m m\u00e2y trong l\u1ecd<\/h3>\n\n\n\n
        \"\"<\/figure>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: L\u1ecd th\u1ee7y tinh, \u0111\u00e1 vi\u00ean, n\u01b0\u1edbc \u1ea5m, keo x\u1ecbt t\u00f3c.<\/p>\n\n\n\n

        Trong ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u00f9a \u0111\u00f4ng d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o n\u00e0y, b\u1ea1n s\u1ebd m\u00f4 ph\u1ecfng s\u1ef1 h\u00ecnh th\u00e0nh m\u00e2y. \u0110\u1ed5 \u0111\u1ea7y n\u01b0\u1edbc \u1ea5m v\u00e0o b\u00ecnh, x\u1ecbt keo x\u1ecbt t\u00f3c v\u00e0 \u0111\u1eb7t nh\u1eefng vi\u00ean \u0111\u00e1 l\u00ean tr\u00ean. Khi kh\u00f4ng kh\u00ed \u1ea5m g\u1eb7p kh\u00f4ng kh\u00ed m\u00e1t l\u1ea1nh t\u1eeb nh\u1eefng vi\u00ean \u0111\u00e1, h\u01a1i n\u01b0\u1edbc ng\u01b0ng t\u1ee5 h\u00ecnh th\u00e0nh, t\u1ea1o th\u00e0nh m\u1ed9t \u0111\u00e1m m\u00e2y b\u00ean trong b\u00ecnh. Ho\u1ea1t \u0111\u1ed9ng n\u00e0y gi\u00fap tr\u1ebb hi\u1ec3u v\u1ec1 h\u1ec7 th\u1ed1ng th\u1eddi ti\u1ebft v\u00e0 c\u00e1ch m\u00e2y h\u00ecnh th\u00e0nh, bi\u1ebfn n\u00f3 th\u00e0nh m\u1ed9t th\u00ed nghi\u1ec7m th\u1eddi ti\u1ebft h\u1ea5p d\u1eabn.<\/p>\n\n\n\n

        17. N\u01b0\u1edbc \u0111i b\u1ed9<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: N\u01b0\u1edbc, ph\u1ea9m m\u00e0u th\u1ef1c ph\u1ea9m, kh\u0103n gi\u1ea5y, c\u1ed1c trong su\u1ed1t.<\/p>\n\n\n\n

        \u0110\u1ed5 n\u01b0\u1edbc m\u00e0u v\u00e0o hai c\u1ed1c, \u0111\u1eb7t m\u1ed9t c\u1ed1c r\u1ed7ng \u1edf gi\u1eefa. G\u1ea5p m\u1ed9t chi\u1ebfc kh\u0103n gi\u1ea5y l\u1ea1i, nh\u00fang m\u1ed9t \u0111\u1ea7u v\u00e0o n\u01b0\u1edbc m\u00e0u v\u00e0 \u0111\u1ea7u c\u00f2n l\u1ea1i v\u00e0o c\u1ed1c r\u1ed7ng. Theo th\u1eddi gian, n\u01b0\u1edbc s\u1ebd \u201cch\u1ea3y\u201d qua kh\u0103n gi\u1ea5y v\u00e0o c\u1ed1c r\u1ed7ng. Ho\u1ea1t \u0111\u1ed9ng h\u1ecdc t\u1eadp khoa h\u1ecdc n\u00e0y d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o s\u1ebd gi\u1edbi thi\u1ec7u v\u1ec1 hi\u1ec7n t\u01b0\u1ee3ng mao d\u1eabn v\u00e0 c\u00e1ch n\u01b0\u1edbc di chuy\u1ec3n qua c\u00e1c v\u1eadt li\u1ec7u x\u1ed1p.<\/p>\n\n\n\n

        18. S\u1eefa th\u1ea7n k\u1ef3<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: S\u1eefa, ph\u1ea9m m\u00e0u th\u1ef1c ph\u1ea9m, n\u01b0\u1edbc r\u1eeda ch\u00e9n, t\u0103m b\u00f4ng, \u0111\u0129a.<\/p>\n\n\n\n

        \u0110\u1ed5 s\u1eefa ra \u0111\u0129a v\u00e0 nh\u1ecf c\u00e1c m\u00e0u th\u1ef1c ph\u1ea9m kh\u00e1c nhau v\u00e0o. Nh\u00fang t\u0103m b\u00f4ng v\u00e0o n\u01b0\u1edbc r\u1eeda ch\u00e9n v\u00e0 ch\u1ea5m v\u00e0o s\u1eefa. M\u00e0u s\u1eafc s\u1ebd xo\u00e1y v\u00e0 lan t\u1ecfa khi x\u00e0 ph\u00f2ng ph\u00e1 v\u1ee1 s\u1ee9c c\u0103ng b\u1ec1 m\u1eb7t c\u1ee7a s\u1eefa. Th\u00ed nghi\u1ec7m n\u00e0y d\u1ea1y tr\u1ebb m\u1eabu gi\u00e1o v\u1ec1 ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc v\u00e0 t\u00ednh ch\u1ea5t c\u1ee7a ch\u1ea5t l\u1ecfng, bi\u1ebfn n\u00f3 th\u00e0nh m\u1ed9t ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc v\u00e0 gi\u00e1c quan tuy\u1ec7t v\u1eddi cho tr\u1ebb m\u1eabu gi\u00e1o.<\/p>\n\n\n\n

        19. Th\u00ed nghi\u1ec7m \u0111\u00e8n dung nham<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: N\u01b0\u1edbc, d\u1ea7u th\u1ef1c v\u1eadt, m\u00e0u th\u1ef1c ph\u1ea9m, vi\u00ean Alka-Seltzer, chai.<\/p>\n\n\n\n

        T\u1ea1o hi\u1ec7u \u1ee9ng \u0111\u00e8n dung nham b\u1eb1ng c\u00e1ch x\u1ebfp l\u1edbp n\u01b0\u1edbc v\u00e0 d\u1ea7u th\u1ef1c v\u1eadt trong chai, r\u1ed3i th\u00eam m\u00e0u th\u1ef1c ph\u1ea9m. Th\u1ea3 vi\u00ean Alka-Seltzer v\u00e0o v\u00e0 quan s\u00e1t b\u1ecdt kh\u00ed n\u1ed5i l\u00ean r\u1ed3i x\u1eb9p xu\u1ed1ng. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc s\u00e1ng t\u1ea1o n\u00e0y d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, gi\u00fap b\u00e9 h\u1ecdc v\u1ec1 kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang v\u00e0 l\u00e0m quen v\u1edbi kh\u00e1i ni\u1ec7m ch\u1ea5t l\u1ecfng kh\u00f4ng h\u00f2a tan (ch\u1ea5t l\u1ecfng kh\u00f4ng h\u00f2a tan), mang \u0111\u1ebfn m\u1ed9t tr\u1ea3i nghi\u1ec7m h\u1ecdc t\u1eadp \u0111\u1ea7y m\u00e0u s\u1eafc v\u00e0 th\u00fa v\u1ecb.<\/p>\n\n\n\n

        20. Tr\u1ed3ng \u0111\u1eadu trong t\u00fai<\/h3>\n\n\n\n
        \"\"<\/figure>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: T\u00fai ni l\u00f4ng, kh\u0103n gi\u1ea5y \u1ea9m, h\u1ea1t \u0111\u1eadu, b\u0103ng d\u00ednh.<\/p>\n\n\n\n

        Cho m\u1ed9t chi\u1ebfc kh\u0103n gi\u1ea5y \u1ea9m v\u00e0 m\u1ed9t h\u1ea1t \u0111\u1eadu v\u00e0o t\u00fai ni l\u00f4ng trong su\u1ed1t r\u1ed3i d\u00e1n l\u00ean c\u1eeda s\u1ed5. Theo th\u1eddi gian, h\u1ea1t s\u1ebd n\u1ea3y m\u1ea7m, v\u00e0 tr\u1ebb c\u00f3 th\u1ec3 quan s\u00e1t c\u00e1c giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y. \u0110\u00e2y l\u00e0 m\u1ed9t ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u00f9a xu\u00e2n l\u00fd t\u01b0\u1edfng cho tr\u1ebb m\u1eabu gi\u00e1o \u0111\u1ec3 gi\u1edbi thi\u1ec7u cho c\u00e1c b\u00e9 v\u1ec1 v\u00f2ng \u0111\u1eddi c\u1ee7a th\u1ef1c v\u1eadt v\u00e0 kh\u00e1i ni\u1ec7m n\u1ea3y m\u1ea7m.<\/p>\n\n\n\n

        21. N\u00fai l\u1eeda chanh c\u00f3 ga<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: Chanh, baking soda, x\u00e0 ph\u00f2ng r\u1eeda ch\u00e9n, ph\u1ea9m m\u00e0u th\u1ef1c ph\u1ea9m, th\u00eca.<\/p>\n\n\n\n

        C\u1eaft \u0111\u00f4i qu\u1ea3 chanh, r\u1eafc baking soda l\u00ean b\u1ec1 m\u1eb7t c\u1eaft v\u00e0 quan s\u00e1t ph\u1ea3n \u1ee9ng s\u1ee7i b\u1ecdt c\u1ee7a axit trong chanh v\u1edbi baking soda. Th\u00eam n\u01b0\u1edbc r\u1eeda ch\u00e9n \u0111\u1ec3 t\u1ea1o th\u00eam b\u1ecdt v\u00e0 m\u00e0u th\u1ef1c ph\u1ea9m \u0111\u1ec3 t\u1ea1o hi\u1ec7u \u1ee9ng th\u1ecb gi\u00e1c. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc th\u00fa v\u1ecb n\u00e0y d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, gi\u00fap tr\u1ebb d\u1ec5 d\u00e0ng v\u00e0 h\u00e0o h\u1ee9ng h\u1ecdc v\u1ec1 ph\u1ea3n \u1ee9ng axit-baz\u01a1.<\/p>\n\n\n\n

        22. S\u1eafc k\u00fd kh\u0103n gi\u1ea5y<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: B\u00fat d\u1ea1, n\u01b0\u1edbc, kh\u0103n gi\u1ea5y, c\u1ed1c nh\u1ecf.<\/p>\n\n\n\n

        D\u00f9ng b\u00fat l\u00f4ng v\u1ebd m\u1ed9t \u0111\u01b0\u1eddng \u0111\u1eadm tr\u00ean kh\u0103n gi\u1ea5y v\u00e0 nh\u00fang m\u00e9p kh\u0103n v\u00e0o n\u01b0\u1edbc. Quan s\u00e1t n\u01b0\u1edbc di chuy\u1ec3n l\u00ean kh\u0103n, t\u00e1ch c\u00e1c m\u00e0u ra. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc d\u1ec5 d\u00e0ng n\u00e0y d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o gi\u00fap tr\u1ebb l\u00e0m quen v\u1edbi s\u1eafc k\u00fd v\u00e0 hi\u1ec3u c\u00e1ch c\u00e1c s\u1eafc t\u1ed1 kh\u00e1c nhau h\u00f2a tr\u1ed9n \u0111\u1ec3 t\u1ea1o ra m\u00e0u s\u1eafc.<\/p>\n\n\n\n

        23. Xe ch\u1ea1y b\u1eb1ng b\u00f3ng bay<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: B\u00f3ng bay, chai nh\u1ef1a, \u1ed1ng h\u00fat, b\u0103ng d\u00ednh, n\u1eafp chai.<\/p>\n\n\n\n

        H\u00e3y ch\u1ebf t\u1ea1o m\u1ed9t chi\u1ebfc \u00f4 t\u00f4 \u0111\u01a1n gi\u1ea3n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng th\u00e2n chai nh\u1ef1a, n\u1eafp chai l\u00e0m b\u00e1nh xe v\u00e0 m\u1ed9t qu\u1ea3 b\u00f3ng bay l\u00e0m l\u1ef1c \u0111\u1ea9y. Th\u1ed5i ph\u1ed3ng qu\u1ea3 b\u00f3ng bay, d\u00e1n n\u00f3 v\u00e0o xe v\u00e0 th\u1ea3 n\u00f3 bay l\u00ean. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc ngo\u00e0i tr\u1eddi d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o n\u00e0y s\u1ebd d\u1ea1y tr\u1ebb v\u1ec1 l\u1ef1c \u0111\u1ea9y, \u00e1p su\u1ea5t kh\u00f4ng kh\u00ed v\u00e0 c\u00e1c nguy\u00ean l\u00fd k\u1ef9 thu\u1eadt khi tr\u1ebb quan s\u00e1t chi\u1ebfc xe ch\u1ea1y b\u1eb1ng b\u00f3ng bay c\u1ee7a m\u00ecnh lao v\u1ec1 ph\u00eda tr\u01b0\u1edbc.<\/p>\n\n\n\n

        24. Tr\u1ee9ng trong chai<\/h3>\n\n\n\n
        \"\"<\/figure>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: Tr\u1ee9ng lu\u1ed9c ch\u00edn, chai th\u1ee7y tinh, di\u00eam ho\u1eb7c gi\u1ea5y ch\u00e1y nh\u1ecf.<\/p>\n\n\n\n

        \u0110\u1eb7t m\u1ed9t que di\u00eam \u0111ang ch\u00e1y ho\u1eb7c m\u1ed9t t\u1edd gi\u1ea5y \u0111ang ch\u00e1y v\u00e0o b\u00ean trong m\u1ed9t chai th\u1ee7y tinh v\u00e0 nhanh ch\u00f3ng \u0111\u1eb7t m\u1ed9t qu\u1ea3 tr\u1ee9ng lu\u1ed9c ch\u00edn l\u00ean mi\u1ec7ng chai. Khi kh\u00f4ng kh\u00ed b\u00ean trong ngu\u1ed9i \u0111i v\u00e0 t\u1ea1o ra ch\u00e2n kh\u00f4ng, qu\u1ea3 tr\u1ee9ng s\u1ebd b\u1ecb h\u00fat v\u00e0o trong chai. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o n\u00e0y s\u1ebd d\u1ea1y tr\u1ebb v\u1ec1 \u00e1p su\u1ea5t kh\u00f4ng kh\u00ed v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t.<\/p>\n\n\n\n

        25. Th\u00ed nghi\u1ec7m tr\u1ee9ng n\u1ed5i<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: N\u01b0\u1edbc, mu\u1ed1i, tr\u1ee9ng, c\u1ed1c trong.<\/p>\n\n\n\n

        Trong th\u00ed nghi\u1ec7m \u0111\u01a1n gi\u1ea3n nh\u01b0ng b\u1ed5 \u00edch n\u00e0y, tr\u1ebb s\u1ebd \u0111\u01b0\u1ee3c t\u00ecm hi\u1ec3u v\u1ec1 kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang. B\u1eaft \u0111\u1ea7u v\u1edbi m\u1ed9t c\u1ed1c n\u01b0\u1edbc t\u1ea1i v\u1ecb tr\u00ed qu\u1ea3 tr\u1ee9ng ch\u00ecm. Sau \u0111\u00f3, t\u1eeb t\u1eeb th\u00eam mu\u1ed1i v\u00e0o cho \u0111\u1ebfn khi qu\u1ea3 tr\u1ee9ng n\u1ed5i l\u00ean. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o n\u00e0y minh h\u1ecda c\u00e1ch mu\u1ed1i thay \u0111\u1ed5i kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang c\u1ee7a n\u01b0\u1edbc, cho ph\u00e9p c\u00e1c v\u1eadt th\u1ec3 n\u1ed5i ho\u1eb7c ch\u00ecm.<\/p>\n\n\n\n

        26. \u0110\u00e1 d\u00ednh<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: \u0110\u00e1 vi\u00ean, d\u00e2y, mu\u1ed1i.<\/p>\n\n\n\n

        \u0110\u1eb7t m\u1ed9t s\u1ee3i d\u00e2y l\u00ean vi\u00ean \u0111\u00e1 v\u00e0 r\u1eafc mu\u1ed1i l\u00ean tr\u00ean. \u0110\u1ee3i m\u1ed9t l\u00e1t r\u1ed3i nh\u1ea5c s\u1ee3i d\u00e2y l\u00ean - \u0111\u00e1 s\u1ebd d\u00ednh ch\u1eb7t! \u0110\u00e2y l\u00e0 m\u1ed9t ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u00f9a \u0111\u00f4ng tuy\u1ec7t v\u1eddi d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, gi\u00fap tr\u1ebb h\u1ecdc v\u1ec1 \u0111i\u1ec3m \u0111\u00f3ng b\u0103ng v\u00e0 c\u00e1ch mu\u1ed1i l\u00e0m gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 c\u1ee7a \u0111\u00e1. Ho\u1ea1t \u0111\u1ed9ng n\u00e0y c\u0169ng gi\u1edbi thi\u1ec7u cho tr\u1ebb v\u1ec1 m\u00f4n h\u00f3a h\u1ecdc c\u01a1 b\u1ea3n.<\/p>\n\n\n\n

        27. In h\u00ecnh m\u1eb7t tr\u1eddi<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: Gi\u1ea5y th\u1ee7 c\u00f4ng t\u1ed1i m\u00e0u, c\u00e1c v\u1eadt nh\u1ecf (l\u00e1 c\u00e2y, \u0111\u1ed3 ch\u01a1i), \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi.<\/p>\n\n\n\n

        \u0110\u1eb7t c\u00e1c v\u1eadt th\u1ec3 l\u00ean gi\u1ea5y th\u1ee7 c\u00f4ng t\u1ed1i m\u00e0u d\u01b0\u1edbi \u00e1nh n\u1eafng tr\u1ef1c ti\u1ebfp trong v\u00e0i gi\u1edd. Khi l\u1ea5y v\u1eadt th\u1ec3 ra, \u00e1nh n\u1eafng s\u1ebd l\u00e0m b\u1ea1c m\u00e0u c\u00e1c v\u00f9ng ti\u1ebfp x\u00fac, \u0111\u1ec3 l\u1ea1i c\u00e1c h\u00ecnh b\u00f3ng. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u00f9a h\u00e8 n\u00e0y d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o gi\u1edbi thi\u1ec7u v\u1ec1 t\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi v\u00e0 tia UV, cho th\u1ea5y \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi c\u00f3 th\u1ec3 l\u00e0m phai m\u00e0u theo th\u1eddi gian.<\/p>\n\n\n\n

        28. Nho kh\u00f4 nh\u1ea3y m\u00faa<\/h3>\n\n\n\n
        \"\"<\/figure>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: Nho kh\u00f4, n\u01b0\u1edbc soda, c\u1ed1c trong su\u1ed1t.<\/p>\n\n\n\n

        Th\u1ea3 nho kh\u00f4 v\u00e0o c\u1ed1c n\u01b0\u1edbc soda v\u00e0 xem ch\u00fang "nh\u1ea3y m\u00faa" khi b\u1ecdt kh\u00ed cacbonat b\u00e1m v\u00e0o nho kh\u00f4, khi\u1ebfn ch\u00fang n\u1ed5i l\u00ean. Khi b\u1ecdt kh\u00ed v\u1ee1, nho kh\u00f4 l\u1ea1i ch\u00ecm xu\u1ed1ng. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc th\u00fa v\u1ecb n\u00e0y d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, gi\u00fap b\u00e9 hi\u1ec3u v\u1ec1 l\u1ef1c n\u1ed5i v\u00e0 c\u00e1ch kh\u00ed c\u00f3 th\u1ec3 n\u00e2ng v\u1eadt th\u1ec3 trong n\u01b0\u1edbc.<\/p>\n\n\n\n

        29. Th\u00ed nghi\u1ec7m tr\u1ee9ng cao su<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: Tr\u1ee9ng, gi\u1ea5m, c\u1ed1c trong su\u1ed1t.<\/p>\n\n\n\n

        \u0110\u1eb7t m\u1ed9t qu\u1ea3 tr\u1ee9ng v\u00e0o c\u1ed1c gi\u1ea5m v\u00e0 \u0111\u1ec3 y\u00ean trong hai ng\u00e0y. Gi\u1ea5m s\u1ebd h\u00f2a tan v\u1ecf tr\u1ee9ng, \u0111\u1ec3 l\u1ea1i l\u1edbp m\u00e0ng cao su. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc trong nh\u00e0 d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o n\u00e0y s\u1ebd d\u1ea1y tr\u1ebb v\u1ec1 axit v\u00e0 c\u00e1ch axit ph\u00e2n h\u1ee7y canxi, \u0111\u1ed3ng th\u1eddi cho tr\u1ebb xem m\u1ed9t ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc th\u00fa v\u1ecb.<\/p>\n\n\n\n

        30. B\u01b0\u1edbm t\u0129nh<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: Gi\u1ea5y l\u1ee5a, b\u00f3ng bay, k\u00e9o, b\u0103ng d\u00ednh.<\/p>\n\n\n\n

        C\u1eaft m\u1ed9t h\u00ecnh con b\u01b0\u1edbm t\u1eeb gi\u1ea5y l\u1ee5a, d\u00e1n l\u00ean b\u00e0n v\u00e0 d\u00f9ng m\u1ed9t qu\u1ea3 b\u00f3ng bay c\u1ecd x\u00e1t l\u00ean \u0111\u1ea7u \u0111\u1ec3 t\u1ea1o ra t\u0129nh \u0111i\u1ec7n. Khi b\u1ea1n \u0111\u01b0a qu\u1ea3 b\u00f3ng bay l\u1ea1i g\u1ea7n con b\u01b0\u1edbm, c\u00e1nh c\u1ee7a n\u00f3 s\u1ebd v\u1ed7. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc gi\u00e1c quan d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o n\u00e0y l\u00e0 m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n v\u00e0 th\u00fa v\u1ecb \u0111\u1ec3 gi\u1edbi thi\u1ec7u cho tr\u1ebb v\u1ec1 t\u0129nh \u0111i\u1ec7n.<\/p>\n\n\n\n

        31. Chu tr\u00ecnh n\u01b0\u1edbc trong t\u00fai<\/h3>\n\n\n\n
        \"\"<\/figure>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: T\u00fai Ziplock, n\u01b0\u1edbc, b\u00fat d\u1ea1, b\u0103ng d\u00ednh.<\/p>\n\n\n\n

        V\u1ebd m\u1ed9t s\u01a1 \u0111\u1ed3 chu tr\u00ecnh n\u01b0\u1edbc \u0111\u01a1n gi\u1ea3n tr\u00ean t\u00fai Ziplock, \u0111\u1ed5 m\u1ed9t \u00edt n\u01b0\u1edbc v\u00e0o v\u00e0 d\u00e1n l\u00ean c\u1eeda s\u1ed5 c\u00f3 n\u1eafng. Theo th\u1eddi gian, n\u01b0\u1edbc b\u1ed1c h\u01a1i v\u00e0 ng\u01b0ng t\u1ee5, m\u00f4 ph\u1ecfng chu tr\u00ecnh n\u01b0\u1edbc. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc h\u00e8 n\u00e0y d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o, d\u1ea1y v\u1ec1 s\u1ef1 bay h\u01a1i, ng\u01b0ng t\u1ee5 v\u00e0 k\u1ebft t\u1ee7a.<\/p>\n\n\n\n

        32. M\u00e2y m\u01b0a kem c\u1ea1o r\u00e2u<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: Th\u1ee7y tinh trong su\u1ed1t, n\u01b0\u1edbc, kem c\u1ea1o r\u00e2u, m\u00e0u th\u1ef1c ph\u1ea9m.<\/p>\n\n\n\n

        \u0110\u1ed5 \u0111\u1ea7y n\u01b0\u1edbc v\u00e0o c\u1ed1c v\u00e0 \u0111\u1ed5 kem c\u1ea1o r\u00e2u l\u00ean tr\u00ean. Nh\u1ecf m\u00e0u th\u1ef1c ph\u1ea9m l\u00ean kem c\u1ea1o r\u00e2u, v\u00e0 quan s\u00e1t "m\u01b0a" m\u00e0u th\u1ea5m qua kem v\u00e0 h\u00f2a v\u00e0o n\u01b0\u1edbc. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o n\u00e0y l\u00e0 m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n v\u00e0 hi\u1ec7u qu\u1ea3 \u0111\u1ec3 d\u1ea1y tr\u1ebb v\u1ec1 m\u00e2y v\u00e0 l\u01b0\u1ee3ng m\u01b0a.<\/p>\n\n\n\n

        33. G\u0103ng tay m\u1ee1<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: Ch\u1ea5t l\u00e0m m\u1ec1m (nh\u01b0 Crisco), hai t\u00fai nh\u1ef1a, n\u01b0\u1edbc \u0111\u00e1 v\u00e0 b\u0103ng d\u00ednh.<\/p>\n\n\n\n

        \u0110\u1ed5 \u0111\u1ea7y shortening v\u00e0o m\u1ed9t t\u00fai ni l\u00f4ng v\u00e0 \u0111\u1eb7t m\u1ed9t t\u00fai kh\u00e1c v\u00e0o b\u00ean trong. Cho tr\u1ebb em \u0111\u1eb7t tay v\u00e0o "g\u0103ng tay m\u1ee1" v\u00e0 nh\u00fang v\u00e0o n\u01b0\u1edbc \u0111\u00e1. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc m\u00f9a \u0111\u00f4ng d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o n\u00e0y cho th\u1ea5y c\u00e1ch c\u00e1c lo\u00e0i \u0111\u1ed9ng v\u1eadt nh\u01b0 g\u1ea5u B\u1eafc C\u1ef1c \u0111\u01b0\u1ee3c c\u00e1ch nhi\u1ec7t kh\u1ecfi c\u00e1i l\u1ea1nh b\u1eb1ng c\u00e1c l\u1edbp m\u1ee1, \u0111\u1ed3ng th\u1eddi d\u1ea1y tr\u1ebb v\u1ec1 c\u00e1ch c\u00e1ch nhi\u1ec7t v\u00e0 s\u1ef1 th\u00edch nghi c\u1ee7a \u0111\u1ed9ng v\u1eadt.<\/p>\n\n\n\n

        34. Th\u1ea1ch \u0111\u1ed9ng \u0111\u1ea5t<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: Th\u1ea1ch, kh\u1ed1i x\u00e2y d\u1ef1ng.<\/p>\n\n\n\n

        Chu\u1ea9n b\u1ecb th\u1ea1ch Jello v\u00e0 \u0111\u1ec3 th\u1ea1ch \u0111\u00f4ng l\u1ea1i. Sau \u0111\u00f3, c\u00e1c kh\u1ed1i x\u00e2y d\u1ef1ng nh\u1ecf \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u00ean tr\u00ean, v\u00e0 \u0111\u0129a \u0111\u01b0\u1ee3c l\u1eafc \u0111\u1ec3 m\u00f4 ph\u1ecfng \u0111\u1ed9ng \u0111\u1ea5t. Tr\u1ebb em s\u1ebd quan s\u00e1t c\u00e1ch "\u0111\u1ed9ng \u0111\u1ea5t" \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c t\u00f2a nh\u00e0, gi\u1edbi thi\u1ec7u cho c\u00e1c em c\u00e1c kh\u00e1i ni\u1ec7m v\u1ec1 k\u1ef9 thu\u1eadt k\u1ebft c\u1ea5u v\u00e0 c\u00e1ch c\u00e1c t\u00f2a nh\u00e0 ph\u1ea3n \u1ee9ng trong \u0111\u1ed9ng \u0111\u1ea5t. \u0110\u00e2y l\u00e0 m\u1ed9t ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc tuy\u1ec7t v\u1eddi cho tr\u1ebb m\u1eabu gi\u00e1o v\u00e0o m\u00f9a thu, nh\u01b0 m\u1ed9t ph\u1ea7n c\u1ee7a b\u00e0i h\u1ecdc v\u1ec1 thi\u00ean tai.<\/p>\n\n\n\n

        35. Th\u00ed nghi\u1ec7m Oobleck<\/h3>\n\n\n\n

        Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: B\u1ed9t ng\u00f4, n\u01b0\u1edbc, b\u00e1t, m\u00e0u th\u1ef1c ph\u1ea9m (t\u00f9y ch\u1ecdn).<\/p>\n\n\n\n

        Tr\u1ed9n b\u1ed9t b\u1eafp v\u1edbi n\u01b0\u1edbc \u0111\u1ec3 t\u1ea1o ra Oobleck, m\u1ed9t ch\u1ea5t l\u1ecfng phi Newton, c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 c\u1ea3 th\u1ec3 r\u1eafn v\u00e0 th\u1ec3 l\u1ecfng. Khi b\u00f3p, n\u00f3 c\u00f3 c\u1ea3m gi\u00e1c r\u1eafn nh\u01b0ng khi th\u1ea3 ra l\u1ea1i ch\u1ea3y nh\u01b0 ch\u1ea5t l\u1ecfng. Ho\u1ea1t \u0111\u1ed9ng khoa h\u1ecdc v\u00e0 c\u1ea3m quan d\u00e0nh cho tr\u1ebb m\u1eabu gi\u00e1o n\u00e0y s\u1ebd d\u1ea1y v\u1ec1 \u0111\u1ed9 nh\u1edbt v\u00e0 gi\u00fap tr\u1ebb hi\u1ec3u \u0111\u01b0\u1ee3c s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ch\u1ea5t r\u1eafn v\u00e0 ch\u1ea5t l\u1ecfng m\u1ed9t c\u00e1ch th\u1ef1c t\u1ebf.<\/p>\n\n\n\n

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