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In this design challenge activity, learners use a balloon and other simple materials to design an air-powered rocket that can hit a distant target.

In this indoor or outdoor water activity, learners pour water from small cups to large cups and containers. In doing so, they discover water takes the shape of its container.

In this design challenge activity, learners build a machine out of cardboard that runs smoothly and dependably. Learners must be precise to make sure their component works properly.

In this water activity, learners test which objects float and which sink. Learners discover that objects behave differently in water.

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

In this activity, learners design a bungee jump for an egg using nylon stockings.

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

In this design challenge activity, learners use tubes of newspaper to make a table that’s at least eight inches tall and strong enough to hold a heavy book!

In this water activity, learners test which objects float and which sink. Learners discover that objects behave differently in water.

In this design challenge activity, learners invent an emergency shelter that can fit a person and is sturdy and quick to build.

In this artistic activity, learners blow up a smaller picture into a larger one, by using a grid.