PDF chapter test TRY NOW
An activity to identify the gas found in the air that we exhale:
Aim:
To prove that the exhaled air is rich in carbon dioxide.
Materials required:
- Two glass jars
- Lime water
- Straw
Procedure:
Leave the first jar with lime water undisturbed, blow air in to the second jar with the help of a straw.
Important!
This exercise needs to be performed, and thus will be checked manually by your teacher.
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