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In this activity, learners construct speedy vehicles made out of paper plates and powered by twisted rubber bands.

In this activity, learners will build a roller coaster for a marble to run on using everyday household materials such as paper towel or toilet paper rolls, cups, boxes, books, buckets, chairs, etc.

In this design challenge, learners will create their own roller coaster using household objects for the track and a marble or small ball as their cart.

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