Describe an activity by showing that air expands on heating?
Answers
Answer:
HEY MATE
Materials Required:
balloons, trough, ice cold water, hot water, bottle
Method:
Take a bottle. Tie the balloon tightly on the neck of the bottle. Place the bottle in a container having hot water. Record your observation. Now place the bottle in cold water. Again observe.
Observation:
When the bottle is placed in hot water, the balloon expands. When the bottle is placed in cold water, it contracts
.Inference:
This happens because when the bottle is placed in hot water, the air in it becomes warm and expands due to which balloon also expands. When the bottle is placed in cold water, the air in the bottle contracts due to which balloon also contracts.
Hope it helps
FOLLOW ME........
Answer: First take a bottle and then tie the balloon tightly on the neck of the bottle. So that when you keep the bottle in hot water, the air in it becomes warm and expands so that the balloon expands. And then when you keep it in cold water, the air becomes cool so, that air contracts and the balloon also contract.