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In this physics activity, challenge learners to lift a book with just air using a plastic bag and a straw. This activity demonstrates compressed air and forces.

In this activity, learners make plates levitate! Learners build "hovercrafts" using simple materials to explore friction and motion.

En esta actividad sobre la exploración e investigación, los aprendices harán ventanas de burbujas.

In this activity on page 7 of the PDF (Plants—The Green Machines), learners examine the effects that light and air have on green plants.

In this simple activity, learners see the production of a gas, which visibly fills up a balloon placed over the neck of a bottle.