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In this activity, learners build small animated toys that move.

In this activity, learners build a bird that flies in place with help from a motor, wire, and some straws.

In this activity, learners experiment with gear motion to understand how gears work to change the amount of force, speed, or direction of motion in machines.

In this activity, learners build a mini crank machine to make a bird "fly." This engineering activity introduces learners to automata, rotational motion, cranks and cams.

In this activity, learners build their own sound machines and explore the interplay of motion and sound.

In this activity, learners build a toy that flies in circles. This activity introduces learners to center of mass, torque, and rotational motion.

In this design and physics challenge, learners construct a cylindrical wing, fly it, make modifications, and determine how the changes affect flight patterns.

In this activity, learners build bridges out of newspaper and tape to explore how structures are designed to bear loads.