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In this online activity, learners build their own system of heavenly bodies and watch the gravitational ballet.

In this project, students explore how levers work, by making a puppet with moving limbs.

In this design challenge activity, learners build a tower that can support a tennis ball at least 18 inches off the ground while withstanding the wind from a fan.

In this activity, learners investigate what happens when you build up static electricity on plastic balls.

In this activity, learners build a kite out of paper, change it, and try to make it fly even better. With their new knowledge of kite making, students can then go on to create their own kite designs.