Test: Blow Hot, Blow Cold MCQ- 1 - Class 5 MCQ

We blow air in the balloon for it to inflate, and the air inside the balloon expands 

The substances which burn in air are called combustible. Oxygen (in air) is essential for combustion.

This is because when we are running, we take more breaths rapidly and so the heart starts beating fast for oxygen to circulate in the body

There was a woodcutter. Everyday in the morning he used to go to the forest to cut wood. In the evening he would sell the wood in the city. One day he went deep into the forest. It was a very cold winter. His fingers were becoming numb. Every now and then, the woodcutter would put down his axe and bring his hands close to his mouth. Then he would blow hard on them to warm them.

The woodcutter needed to boil potatoes for food

The woodcutter used to sell wood in the evening.

The air conditioner gives out cold air and keeps the room cool.

The hair dryer is used to dry wet hair which can be done when it gives out hot air

He made the chulha to ignite fire and put a handi(pot) to prepare food in it.

The cold can cause us to feel numb because blood circulation in the body reduces.