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In this activity, learners build a musical drum using a cardboard tube, plastic wrap, and beads.

In this activity, learners build a carousel toy that spins when pushed down.

In this activity, learners build a hot air balloon using just a few sheets of tissue paper and a hair dryer.

In this activity, learners build mini-basketball courts and explore the laws of physics. Learners discover that everything you throw or shoot on earth travels in a parabola.

In this physics activity, learners build a toy with a figure that spins around like a gymnast on the high bar.

In this activity on page 8 of the PDF, learners make a slimy substance very similar to mucus, and sprinkle it with glitter to imitate the way that allergens are trapped.

In this activity, learners use simple materials and basic tools to construct a special toy to explore pendulums. As the head of the toy bobs one way, the eyeballs bob the other way.

In this activity, learners create 3D geometric shapes using straws and pipe cleaners.

In this activity, learners build unique yo-yos, which spin round and round without moving up and down.

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

In this activity, learners make a Benham Top to explore visual illusions and optics.