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Gases Matter

Author(s): Nancy Moreno, PhD, Barbara Tharp, MS, and Judith Dresden, MS.

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. 


Funded by the following grant(s)

National Institute of Environmental Health Sciences, NIH

National Institute of Environmental Health Sciences, NIH

The Environment as a Context for Opportunities in Schools
Grant Numbers: 5R25ES010698, R25ES06932


Houston Endowment Inc.

Houston Endowment Inc.

Foundations for the Future: Capitalizing on Technology to Promote Equity, Access and Quality in Elementary Science Education