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In this sports-themed engineering activity, learners create super bouncy balls out of balloons. Learners brainstorm, test their designs, and share results.

In this design challenge activity, learners build a rubber band-powered rover that can scramble across the room.

In this engineering activity, learners design parachutes to give toy figures safe landings. This activity is great for practicing an important STEM skill--changing only one variable at a time.

Learners build at least two different spinners (tops) to investigate how mass distribution, size, and shape affect the length of time the spinner spins.

Learners examine collisions between two skateboards carrying different masses. They learn about conservation of momentum in collisions.

In this activity, challenge learners to design a roller coaster ride for a marble using cardboard and other simple materials.

In this design challenge, learners build a boat that paddles itself using a rubber band as its power source.

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.