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In this activity (on page 1 of the PDF), learners make a "mini-globe" to investigate the causes of day and night on our planet.

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

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 use the steps of the design process to create a hook to rescue a "space capsule" from the water.

Learners will build and experiment with their own windmills made from simple household materials.

In this activity, learners work in teams to construct human lung models from small plastic beverage bottles and balloons.

In this experiment, learners design and build a model room in a shoebox and furnish it with tiny furniture.