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In this activity, learners construct their own small catapults using simple materials. Learners follow visual instructions to build their launching device.

In this three/four-day lesson, learners calculate perimeters and areas and draw the castle plan to scale.

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

Build a catapult that transforms the potential energy of a twisted rubber band into kinetic energy. Experiment with design variations so that you can hit a target with a projectile.

In this dynamic activity, learners build a catapult that launches projectiles, such as marshmallows.