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NCERT · Class 5 · EVS

Chapter 15: Blow Hot Blow Cold

Practice each question, then open the answer or worked solution.

What we have learnt

2 questions
Q1Written answer

While playing, Amit hit a wall. His forehead was swollen. Didi immediately folded a scarf (4-5 times), blew on it and kept it on Amit’s forehead. Why do you think didi did this?

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Worked solution

Answer: Didi, by doing so, could reduce the swollen area. Pressing a kerchief blown with air on the injury gives relief and reduces pain.

Q2Written answer

We blow to cool hot things as well as to warm them. Give examples of each.

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Worked solution

Answer: To cool hot things like a hot cup of tea, a bowl of hot food, etc., we blow air to cool.

For things which are colder, like a piece of cloth, hands can be warmed up by blowing air.

 

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