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Air Is There

Two 50-minute sessions
5

In this lesson, students explore air as a type of matter. In the first session, they watch a presentation that defines matter as anything that takes up space. They learn about the three common states of matter and see and discuss how solids and liquids take up space. Then, to help students understand how we can be sure that invisible gases like air take up space, they follow along as the teacher performs two demonstrations. In the second session, students learn that in addition to taking up space, all matter also has mass. To help them understand the concept of mass, students build a simple balance scale and use it to verify that air has mass and that different objects have different amounts of mass. At the end of the session, students reflect on the importance of protecting this important type of matter called air, even though it is often invisible to us.

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