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Learners conduct two activities to investigate two properties of liquids: density and viscosity. In a clear container, learners stack 7 different liquids which will layer according to their density.

In this engineering activity, learners investigate the differences between the strength of bridges made from flat and round building materials.

In this activity, learners use Jell-O to explore lenses. Learners cut Jell-O into convex and concave lens shapes and examine how light exits each lens in a darkened room.

In this activity, learners examine baking powder, a combination of three powders: baking soda, cream of tartar, and cornstarch.

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

In this design challenge, learners build a boat that paddles itself using a rubber band as its power source.

In this activity, learners build small animated toys that move.

In this activity, learners build a bird that flies in place with help from a motor, wire, and some straws.

In this design challenge activity, learners build a shock-absorbing system that will protect two “astronauts” when they land.

In this activity, learners design a therapeutic agent to image and/or cure various diseases in the respiratory system.