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In this activity, learners model the gravitational fields of planets on a flexible surface.

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 activity, learners are challenged to design a planktonic organism that will neither float like a cork nor sink like a stone.

In this hands-on activity, learners will construct a scuba diver that can float in order to explore how sea creatures stay neutrally buoyant in the ocean and to see what kinds of forces might be influ