CPS Global School-TMZ Students Corner

Hot air & cold air science experiment @ ELP2 CPSGS TMZ

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Simple science experiments are a fun way to introduce children of all ages to basic scientific concepts. It also nurtures intellectual curiosity, helping children acquire new ways of asking questions and understanding the world.

Kids are natural-born scientists. They love to experiment, ask questions, and see how things work. So why not indulge their curiosity?                                                                              This hot air and cold air science activity is a great experiment to watch the effects of hot air and cold air on a balloon.  Two containers, one filled with hot tap water and the other with ice and cold water were kept ready. A balloon was placed over the mouth of the empty plastic bottle. Children started wondering what the experiment is all about! Following the teacher’s instructions, first the plastic bottle was placed in the centre of the container filled with hot water. After few minutes the balloon started to inflate and expand. Our little ones were awestruck to see the balloon inflating. Then the bottle was removed from the hot water and placed in the container with cold water. When the children were eagerly waiting to see the next surprise, the balloon started to deflate and contract. It was just amazing to see the way the children engrossed in the activity. By repeating the activity, all kids were provided with opportunity to predict, ask questions and discuss their ideas. This Science experiment helped our kids to learn the difference between hot and cold water. They also learnt two new vocabularies – Inflate and Deflate. At last, they understood the magic behind the balloon activity – When the air inside the plastic bottle is warm, it expands and needs more space and therefore it stretches out the balloon.  When the bottle is transferred to the icy cold water, the air is cooled; it contracts and needs less space, so the balloon deflates. The young learners had a great time learning and experimenting.

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