Sunday, August 12, 2012

HOW TO PROVE AIR EXPANDS WHEN HEATED????

Let's prove air expands when heated!!!!!

Materials:

1 plastic cup


Water

Balloon

Glass test tube

Tape

Instructions

Fix the balloon to the test tube use tape to ensure it is attached firmily to the test tube (do not blow the balloon)

Boil water and pour the boiled water  in the plastic cup and put the test tube with the balloon inside the water (make sure that only the bottom of the test tube should touch the water)

Observe: After 1 or 2 minutes the balloon is heated . This proves that when air is heated it expands

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