What’s In the Balloon?
To focus your students’ attention, begin by asking, Can we see gases? Then, to demonstrate that it is possible to observe gases, blow up a large balloon in front of your students. Allow students to touch the sides of the balloon.
Begin a class discussing by asking, What do you think is inside the balloon? Lead students to the conclusion that the balloon contains air. Explain that air consists of a mixture of gases that we cannot always see or smell.
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Funded by the following grant(s)
The Environment as a Context for Opportunities in Schools
Grant Numbers: 5R25ES010698, R25ES06932
Foundations for the Future: Capitalizing on Technology to Promote Equity, Access and Quality in Elementary Science Education