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In this engineering activity, challenge learners to invent a water filter that cleans dirty water.

In this activity, learners engineer a flying glider using paper hoops and a drinking straw.

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

In this activity, learners construct a playable kazoo from inexpensive materials. They will experience how vibration creates sound waves and music.

In this activity, challenge learners to keep an ice cube from completely melting in 30 minutes. Learners engineer a box or wrap to prevent an ice cube from melting.

This is an activity (located on page 3 of the PDF) about the mixture of materials in bone and how they affect its strength.

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