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In this activity, learners discover how NASA engineers develop experimental aircraft.

Learners build simple catapults and use them to launch cotton balls.

In this activity, learners explore trebuchet design. Teams of learners construct trebuchets from everyday materials.

This activity (located on page 3 of the PDF under GPS: Lava Flow Activity) is a full inquiry investigation into the relationship between an object’s mass and the distance it is thrown by a catapult.