{"id":22735,"date":"2025-01-20T10:20:22","date_gmt":"2025-01-20T03:20:22","guid":{"rendered":"https:\/\/i-clc.edu.vn\/?p=22735"},"modified":"2025-01-20T10:20:22","modified_gmt":"2025-01-20T03:20:22","slug":"khoa-hoc-song-ngu-tai-sao-nuoc-lai-co-the-dong-bang-va-tan","status":"publish","type":"post","link":"https:\/\/i-clc.edu.vn\/en\/kien-thuc-toan-khoa-hoc-song-ngu\/khoa-hoc-song-ngu-tai-sao-nuoc-lai-co-the-dong-bang-va-tan\/","title":{"rendered":"Khoa h\u1ecdc song ng\u1eef: T\u1ea1i sao n\u01b0\u1edbc l\u1ea1i c\u00f3 th\u1ec3 \u0111\u00f3ng b\u0103ng v\u00e0 tan?"},"content":{"rendered":"

N\u01b0\u1edbc l\u00e0 m\u1ed9t ch\u1ea5t r\u1eafn r\u1ea5t \u0111\u1eb7c bi\u1ec7t v\u00e0 c\u00f3 th\u1ec3 thay \u0111\u1ed5i th\u00e0nh nhi\u1ec1u tr\u1ea1ng th\u00e1i kh\u00e1c nhau.C\u00e1c b\u00e9 c\u00f3 bi\u1ebft n\u01b0\u1edbc c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh \u0111\u00e1 l\u1ea1nh v\u00e0 l\u1ea1i tan ra th\u00e0nh n\u01b0\u1edbc khi \u1ea5m kh\u00f4ng? V\u1eady t\u1ea1i sao n\u01b0\u1edbc l\u1ea1i c\u00f3 th\u1ec3 \u0111\u00f3ng b\u0103ng v\u00e0 l\u1ea1i tan ra nh\u01b0 v\u1eady? C\u00e1c b\u00e9 h\u00e3y c\u00f9ng I-CLC t\u00ecm hi\u1ec3u hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y nh\u00e9!<\/span><\/p>\n

Water is a very special substance and can change into many different states. Do you know that water can turn into ice when it’s cold and melt back into water when it\u2019s warm? So, why can water freeze into ice and melt again? Let\u2019s explore this with I-CLC!<\/span><\/i><\/p>\n

1. N\u01b0\u1edbc c\u00f3 c\u1ea5u t\u1ea1o nh\u01b0 th\u1ebf n\u00e0o?<\/b><\/p>\n

1. What is water made of?<\/span><\/i><\/p>\n

N\u01b0\u1edbc l\u00e0 m\u1ed9t ch\u1ea5t l\u1ecfng r\u1ea5t \u0111\u1eb7c bi\u1ec7t. N\u01b0\u1edbc c\u00f3 t\u00ean khoa h\u1ecdc l\u00e0 H\u2082O, c\u00f3 ngh\u0129a l\u00e0 m\u1ed7i ph\u00e2n t\u1eed n\u01b0\u1edbc \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb hai nguy\u00ean t\u1eed hydro (H) v\u00e0 m\u1ed9t nguy\u00ean t\u1eed oxy (O). C\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc n\u00e0y kh\u00f4ng \u0111\u1ee9ng y\u00ean m\u00e0 lu\u00f4n di chuy\u1ec3n.<\/span><\/p>\n

Water is a very special liquid. Its scientific name is H\u2082O, which means each water molecule is made up of two hydrogen atoms (H) and one oxygen atom (O). These water molecules don\u2019t stay still but are always moving.<\/span><\/i><\/p>\n

Khi n\u01b0\u1edbc \u1ea5m, c\u00e1c ph\u00e2n t\u1eed s\u1ebd di chuy\u1ec3n r\u1ea5t nhanh v\u00e0 kh\u00f4ng gi\u1eef ch\u1eafc v\u1edbi nhau. Nh\u01b0ng khi n\u01b0\u1edbc tr\u1edf n\u00ean l\u1ea1nh, c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc s\u1ebd di chuy\u1ec3n ch\u1eadm l\u1ea1i v\u00e0 b\u1eaft \u0111\u1ea7u n\u1eafm ch\u1eb7t l\u1ea5y nhau h\u01a1n. \u0110i\u1ec1u n\u00e0y gi\u00fap n\u01b0\u1edbc c\u00f3 th\u1ec3 \u0111\u00f3ng b\u0103ng th\u00e0nh \u0111\u00e1 khi tr\u1eddi l\u1ea1nh.<\/span><\/p>\n

When water is warm, the molecules move very quickly and don\u2019t stay tightly together. But when the water becomes cold, the molecules slow down and start holding on to each other more tightly. This is why water can freeze into ice when it\u2019s cold.<\/span><\/i><\/p>\n

\"\"<\/a><\/p>\n

2. Qu\u00e1 tr\u00ecnh n\u01b0\u1edbc \u0111\u00f3ng b\u0103ng<\/b><\/p>\n

    \n
  1. The process of water freezing<\/span><\/i><\/li>\n<\/ol>\n

    Khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m xu\u1ed1ng d\u01b0\u1edbi 0\u00b0C, n\u01b0\u1edbc s\u1ebd b\u1eaft \u0111\u1ea7u \u0111\u00f3ng b\u0103ng. C\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc di chuy\u1ec3n ch\u1eadm l\u1ea1i v\u00e0 t\u1ea1o th\u00e0nh nh\u1eefng li\u00ean k\u1ebft b\u1ec1n v\u1eefng v\u1edbi nhau. Nh\u1eefng li\u00ean k\u1ebft n\u00e0y gi\u00fap c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc s\u1eafp x\u1ebfp l\u1ea1i th\u00e0nh m\u1ed9t c\u1ea5u tr\u00fac r\u1ea5t \u0111\u1eb7c bi\u1ec7t gi\u1ed1ng nh\u01b0 nh\u1eefng vi\u00ean g\u1ea1ch x\u1ebfp ch\u1ed3ng l\u00ean nhau, t\u1ea1o ra m\u1ed9t kh\u1ed1i \u0111\u00e1 c\u1ee9ng.<\/span><\/p>\n

    When the temperature drops below 0\u00b0C, water will begin to freeze. The water molecules slow down and form strong bonds with each other. These bonds help the molecules line up in a very special structure, like bricks stacked on top of each other, creating a solid block of ice.<\/span><\/i><\/p>\n

    C\u00e1c b\u00e9 s\u1ebd th\u1ea5y \u0111i\u1ec1u n\u00e0y r\u00f5 h\u01a1n khi m\u00f9a \u0111\u00f4ng \u0111\u1ebfn, nh\u1eefng c\u01a1n gi\u00f3 l\u1ea1nh khi\u1ebfn c\u00e1c h\u1ed3, s\u00f4ng hay nh\u1eefng c\u1ed1c n\u01b0\u1edbc \u0111\u1ec3 ngo\u00e0i tr\u1eddi b\u1ecb \u0111\u00f3ng b\u0103ng th\u00e0nh nh\u1eefng l\u1edbp b\u0103ng d\u00e0y. B\u0103ng \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb n\u01b0\u1edbc, nh\u01b0ng v\u00ec c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc \u0111\u00e3 s\u1eafp x\u1ebfp l\u1ea1i v\u1edbi nhau th\u00e0nh c\u1ea5u tr\u00fac ch\u1eafc ch\u1eafn, n\u00ean b\u0103ng s\u1ebd c\u1ee9ng v\u00e0 l\u1ea1nh h\u01a1n n\u01b0\u1edbc l\u1ecfng<\/span><\/p>\n

    You can see this better in winter when the cold wind freezes lakes, rivers, or glasses of water left outside into thick layers of ice. The ice is made from water, but because the molecules have lined up in a solid structure, the ice is colder and harder than liquid water..<\/span><\/i><\/p>\n

    \"\"<\/a><\/p>\n

    3. Qu\u00e1 tr\u00ecnh n\u01b0\u1edbc tan ch\u1ea3y<\/b><\/p>\n

      \n
    1. The process of water melting<\/span><\/i><\/li>\n<\/ol>\n

      Khi b\u0103ng g\u1eb7p nhi\u1ec7t \u0111\u1ed9 \u1ea5m, ch\u1eb3ng h\u1ea1n nh\u01b0 khi tr\u1eddi tr\u1edf n\u00ean \u1ea5m h\u01a1n ho\u1eb7c khi ch\u00fang ta mang c\u1ed1c \u0111\u00e1 v\u00e0o trong nh\u00e0, th\u00ec n\u01b0\u1edbc trong b\u0103ng s\u1ebd b\u1eaft \u0111\u1ea7u tan ch\u1ea3y. \u0110i\u1ec1u n\u00e0y x\u1ea3y ra v\u00ec nhi\u1ec7t \u0111\u1ed9 \u1ea5m s\u1ebd khi\u1ebfn c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc trong b\u0103ng di chuy\u1ec3n nhanh h\u01a1n v\u00e0 kh\u00f4ng c\u00f2n li\u00ean k\u1ebft v\u1edbi nhau ch\u1eb7t ch\u1ebd n\u1eefa. Khi c\u00e1c ph\u00e2n t\u1eed kh\u00f4ng c\u00f2n “n\u1eafm tay” nhau nh\u01b0 l\u00fac \u0111\u00f3ng b\u0103ng, b\u0103ng s\u1ebd chuy\u1ec3n th\u00e0nh n\u01b0\u1edbc l\u1ecfng.\u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao ch\u00fang ta th\u1ea5y \u0111\u00e1 tan ch\u1ea3y th\u00e0nh n\u01b0\u1edbc khi nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng c\u00f2n l\u1ea1nh n\u1eefa.<\/span><\/p>\n

      When ice meets warm temperatures, for example, when the weather gets warmer or when we bring a glass of ice inside, the ice begins to melt. This happens because the warm temperature makes the water molecules in the ice move faster and no longer hold on to each other tightly. When the molecules stop \u201cholding hands\u201d like they did when they froze, the ice turns back into liquid water.That\u2019s why we see ice melt into water when the temperature is no longer cold.<\/span><\/i><\/p>\n

      4. Nh\u1eefng y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c \u0111\u00f3ng b\u0103ng v\u00e0 tan ch\u1ea3y c\u1ee7a n\u01b0\u1edbc<\/b><\/p>\n

        \n
      1. Factors that affect the freezing and melting of water<\/span><\/i><\/li>\n<\/ol>\n

        Ngo\u00e0i nhi\u1ec7t \u0111\u1ed9, m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 kh\u00e1c c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh n\u01b0\u1edbc \u0111\u00f3ng b\u0103ng v\u00e0 tan ch\u1ea3y. M\u1ed9t trong s\u1ed1 \u0111\u00f3 l\u00e0 \u00e1p su\u1ea5t (l\u1ef1c t\u00e1c \u0111\u1ed9ng l\u00ean m\u1ed9t v\u1eadt th\u1ec3), khi c\u00f3 \u00e1p su\u1ea5t l\u1edbn n\u01b0\u1edbc c\u00f3 th\u1ec3 \u0111\u00f3ng b\u0103ng \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n. Ngo\u00e0i ra, n\u1ebfu c\u00f3 mu\u1ed1i ho\u1eb7c c\u00e1c ch\u1ea5t kh\u00e1c h\u00f2a v\u00e0o trong n\u01b0\u1edbc, \u0111i\u1ec3m \u0111\u00f3ng b\u0103ng c\u1ee7a n\u01b0\u1edbc s\u1ebd th\u1ea5p h\u01a1n b\u00ecnh th\u01b0\u1eddng, t\u1ee9c l\u00e0 n\u01b0\u1edbc s\u1ebd \u0111\u00f3ng b\u0103ng khi nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng qu\u00e1 l\u1ea1nh.<\/span><\/p>\n

        In addition to temperature, some other factors also affect the freezing and melting process of water. One of these is pressure (the force applied to an object). When there is high pressure, water can freeze at a lower temperature. Additionally, if salt or other substances are mixed with water, its freezing point is lowered, meaning water will freeze at temperatures that aren’t as cold.<\/span><\/i><\/p>\n

        Ch\u00fang ta c\u00f3 th\u1ec3 th\u1ea5y \u0111i\u1ec1u n\u00e0y khi m\u00f9a \u0111\u00f4ng \u0111\u1ebfn, c\u00e1c con \u0111\u01b0\u1eddng b\u1ecb ph\u1ee7 \u0111\u1ea7y tuy\u1ebft. M\u1ecdi ng\u01b0\u1eddi th\u01b0\u1eddng r\u1ea3i mu\u1ed1i l\u00ean \u0111\u01b0\u1eddng \u0111\u1ec3 gi\u00fap tan b\u0103ng v\u00e0 tuy\u1ebft, \u0111\u1ec3 kh\u00f4ng b\u1ecb tr\u01a1n tr\u01b0\u1ee3t khi \u0111i l\u1ea1i.<\/span><\/p>\n

        We can see this in winter when roads are covered with snow. People often spread salt on the road to help melt the ice and snow so people don\u2019t slip while walking.<\/span><\/i><\/p>\n

        \"\"<\/a><\/p>\n

        5. T\u1ea1i sao n\u01b0\u1edbc l\u1ea1i \u0111\u1eb7c bi\u1ec7t nh\u01b0 v\u1eady?<\/b><\/p>\n

          \n
        1. Why is water so special?<\/span><\/li>\n<\/ol>\n

          N\u01b0\u1edbc c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i trong ba tr\u1ea1ng th\u00e1i: l\u1ecfng, r\u1eafn v\u00e0 kh\u00ed. Khi n\u01b0\u1edbc l\u00e0 ch\u1ea5t l\u1ecfng, n\u00f3 c\u00f3 th\u1ec3 ch\u1ea3y v\u00e0 t\u1ea1o th\u00e0nh su\u1ed1i, s\u00f4ng, bi\u1ec3n. Khi n\u01b0\u1edbc l\u1ea1nh, n\u00f3 s\u1ebd \u0111\u00f3ng b\u0103ng th\u00e0nh \u0111\u00e1. C\u00f2n khi n\u01b0\u1edbc n\u00f3ng, n\u00f3 s\u1ebd bay h\u01a1i th\u00e0nh h\u01a1i n\u01b0\u1edbc. Qu\u00e1 tr\u00ecnh n\u01b0\u1edbc thay \u0111\u1ed5i t\u1eeb tr\u1ea1ng th\u00e1i n\u00e0y sang tr\u1ea1ng th\u00e1i kh\u00e1c l\u00e0 m\u1ed9t \u0111i\u1ec1u r\u1ea5t th\u00fa v\u1ecb v\u00e0 c\u00f3 th\u1ec3 quan s\u00e1t h\u00e0ng ng\u00e0y trong cu\u1ed9c s\u1ed1ng.<\/span><\/p>\n

          Water can exist in three states: liquid, solid, and gas. When water is a liquid, it can flow and form streams, rivers, and oceans. When it gets cold, it freezes into ice. And when it gets hot, it turns into steam. The way water changes from one state to another is very interesting and can be seen in daily life.<\/span><\/i><\/p>\n

          N\u01b0\u1edbc c\u00f3 th\u1ec3 \u0111\u00f3ng b\u0103ng v\u00e0 tan ch\u1ea3y v\u00ec c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc thay \u0111\u1ed5i c\u00e1ch di chuy\u1ec3n v\u00e0 li\u00ean k\u1ebft v\u1edbi nhau t\u00f9y theo nhi\u1ec7t \u0111\u1ed9. Khi l\u1ea1nh, n\u01b0\u1edbc tr\u1edf th\u00e0nh \u0111\u00e1, v\u00e0 khi \u1ea5m, \u0111\u00e1 l\u1ea1i tr\u1edf th\u00e0nh n\u01b0\u1edbc. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y r\u1ea5t th\u00fa v\u1ecb v\u00e0 gi\u00fap ch\u00fang ta hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 th\u1ebf gi\u1edbi xung quanh m\u00ecnh. C\u00e1c B\u00e9 th\u1eed ngh\u0129 xem, n\u1ebfu kh\u00f4ng c\u00f3 n\u01b0\u1edbc, kh\u00f4ng c\u00f3 b\u0103ng v\u00e0 kh\u00f4ng c\u00f3 h\u01a1i n\u01b0\u1edbc, cu\u1ed9c s\u1ed1ng c\u1ee7a ch\u00fang ta s\u1ebd nh\u01b0 th\u1ebf n\u00e0o nh\u1ec9?<\/span><\/p>\n

          Water can freeze and melt because the water molecules change how they move and bond with each other depending on the temperature. When it\u2019s cold, water turns into ice, and when it\u2019s warm, ice turns back into water. This phenomenon is fascinating and helps us understand the world around us. Can you imagine what life would be like if there was no water, no ice, and no steam?<\/span><\/i><\/p>\n

           <\/p>\n

          LANGUAGE CENTER INTERCONTINENTAL (I-CLC)<\/span><\/i><\/p>\n

          CN HCM: 46 Road 65, KDC Tan Quy Dong, P. Tan Phong, District 7<\/span><\/i><\/p>\n

          CN Nha Trang: Plot no. 12, Road B2, Urban Area, Vinh Diem Trung, Vinh Hiep, ho chi minh City, Nha Trang<\/span><\/i><\/p>\n

          \ud83c\udf10 <\/span><\/i>https:\/\/i-clc.edu.vn\/<\/span><\/i><\/a><\/p>\n

          \u260e\ufe0f 0917729932<\/span><\/i><\/p>\n

          #ICLC #tienganhtieuhoc #tienganhtreem<\/span><\/i><\/p>\n

           <\/p>","protected":false},"excerpt":{"rendered":"

          N\u01b0\u1edbc l\u00e0 m\u1ed9t ch\u1ea5t r\u1eafn r\u1ea5t \u0111\u1eb7c bi\u1ec7t v\u00e0 c\u00f3 th\u1ec3 thay \u0111\u1ed5i th\u00e0nh nhi\u1ec1u tr\u1ea1ng th\u00e1i kh\u00e1c nhau.C\u00e1c b\u00e9 c\u00f3 bi\u1ebft n\u01b0\u1edbc c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh \u0111\u00e1 l\u1ea1nh v\u00e0 l\u1ea1i tan ra th\u00e0nh n\u01b0\u1edbc khi \u1ea5m kh\u00f4ng? V\u1eady t\u1ea1i sao n\u01b0\u1edbc l\u1ea1i c\u00f3 th\u1ec3 \u0111\u00f3ng b\u0103ng v\u00e0 l\u1ea1i tan ra nh\u01b0 v\u1eady? C\u00e1c b\u00e9 …<\/p>\n

          Khoa h\u1ecdc song ng\u1eef: T\u1ea1i sao n\u01b0\u1edbc l\u1ea1i c\u00f3 th\u1ec3 \u0111\u00f3ng b\u0103ng v\u00e0 tan?<\/span> Read More »<\/a><\/p>","protected":false},"author":427,"featured_media":22737,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[188],"tags":[],"class_list":["post-22735","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kien-thuc-toan-khoa-hoc-song-ngu"],"acf":[],"_links":{"self":[{"href":"https:\/\/i-clc.edu.vn\/en\/wp-json\/wp\/v2\/posts\/22735","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i-clc.edu.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i-clc.edu.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i-clc.edu.vn\/en\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/i-clc.edu.vn\/en\/wp-json\/wp\/v2\/comments?post=22735"}],"version-history":[{"count":2,"href":"https:\/\/i-clc.edu.vn\/en\/wp-json\/wp\/v2\/posts\/22735\/revisions"}],"predecessor-version":[{"id":22740,"href":"https:\/\/i-clc.edu.vn\/en\/wp-json\/wp\/v2\/posts\/22735\/revisions\/22740"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/i-clc.edu.vn\/en\/wp-json\/wp\/v2\/media\/22737"}],"wp:attachment":[{"href":"https:\/\/i-clc.edu.vn\/en\/wp-json\/wp\/v2\/media?parent=22735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i-clc.edu.vn\/en\/wp-json\/wp\/v2\/categories?post=22735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i-clc.edu.vn\/en\/wp-json\/wp\/v2\/tags?post=22735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}