Topic speaking level 2 - Lesson 11 : SOLID, LIQUID AND GAS

<p><br>1. Boiling<br>Boiling is the term used to describe liquid turning to gas at a higher<br>temperature than evaporation.<br>Different liquids boil at different temperatures.<br>You can see steam rising from boiling water as it is a mixture of<br>water vapour and small droplets of water that make it visible<br>2. Condensation<br>Condensation is the scientific term for when a gas turns into a<br>liquid. You can see this happening in hot rooms when the water<br>vapour in the air touches the cold glass of a mirror or window.<br>The water vapour cools and turns into water droplets that make the<br>glass look misty and cloudy<br>3. Changing States of Water<br>What happens when you freeze water?<br>The water turns into it’s solid form, ice<br>4. Freezing<br>Freezing occurs when a liquid is made very cold and becomes a<br>solid. When water is put into a freezer, it will become ice<br>5. Changing States of Water<br>What happens when you hold an ice cube in your hand?<br>The ice melts and becomes a liquid again&nbsp;<br>6. Melting<br>Melting happens when a solid turns into a liquid from being<br>heated. Different solids melt at different temperatures<br>7. Solidifying<br>Solidifying is when a liquid becomes a solid. Some liquids do not<br>need to be cold to solidify.<br>Chocolate is solid at room temperature, it does not need to be<br>frozen or chilled to become solid again</p><p>BTVN<br>- Con ôn tập nội dung bài học bằng cách thực hành trả lời các câu hỏi đã học<br>- Con quay video thực hành nói về chủ đề “ SOLID, LIQUID AND GAS. “<br>&nbsp;</p>