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Activity
PBS

Pbs Kids: Dragonfly Tv: Do It: Amazing Air!

For Students 3rd - 8th
PBS site sets up an investigation that you can do at home to see the effects of invisible air.
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Lesson Plan
Science and Mathematics Initiative for Learning Enhancement (SMILE)

Smile: What a Gas!

For Teachers 3rd - 5th
In this lesson plan, students will understand and explain that air occupies space, visual effects of air and how air exerts force.