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In this environmental science activity (page 3 of the PDF), leaners will identify and explain the causes of erosion.

In this biology activity (page 5 of the PDF), learners use yarn and sticky labels to build a model of a DNA strand. They discover that DNA is very long, very skinny, and packs well into cells.

In this environmental education demonstration (page 6 of the PDF), learners will see a tangible representation of the scarcity of soil resources on earth.

In this engineering activity, learners test the stability of towers they build out of cups, discovering that structures with more mass in the base are more stable.

In this yummy activity about soil (page 9 of PDF), learners will create layers of soil using food. They will learn about the composition and role of each layer.

In this earth science activity (page 14 of the PDF), learners use layers of closed-cell foam to create their own model of the mid-ocean ridge in order to simulate seafloor spreading.

In this yummy earth science activity (page 5 of the PDF), learners use fudge to learn about different kinds of lava.

In this weather activity (page 1 of the PDF), learners will construct their very own anemometer to measure wind speed.

In this astronomy activity, learners create a model of the solar system using beads and string.

In this geology activity (page 3 of the PDF), learners simulate an earthquake with little more than an elastic band and drinking straws.

In this physics activity (page 10 of the PDF), learners will explore how energy from moving water can be used.