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In this activity (page 2 of PDF under GPS: Kinetic Sculpture Challenge Activity), learners will predict which objects have to overcome the most static friction to slide down a ramp.

In this self-measuring activity, learners measure and record the length of their foot.

Make a model city happier with LEDs, circuits, motors, and batteries! Groups can think, discuss, design, and build what would make a community happy. Kids can work as part of a team or on their own.

In this outdoor activity, learners discover that plants aren't just shoots (stem, branches, leaves, and flowers) growing above ground, but contain plenty of roots growing underground—more than half th

In this activity (located on page 2), learners will construct tiny model geysers out of film canisters, warm water, and antacid seltzer tablets.

In this chemistry meets cooking activity, learners compare the stability of egg white foams with various additives.

In this experiment, learners will explore whether increased carbon dioxide makes our oceans more basic or more acidic.

In this activity (located on page 5 of PDF), learners work in groups to create dig sites for display.

Learners work in groups to construct bridges using stale marshmallows and toothpicks.

In this activity, learners build one or more edible coral polyps and place them together to form a colony.

In this activity, learners create a tiny electric, motorized dancer. Learners use the interactions of magnetism and electric current to make a wire spin, while displaying the Lorentz Force in action.

Learners design different shaped bandages for different purposes. First, they draw their designs on paper.

In this craft activity, learners will explore the structure and purpose of antelope horns by constructing their own headband using toilet paper rolls and yarn.

In this engineering activity, learners design parachutes to give toy figures safe landings. This activity is great for practicing an important STEM skill--changing only one variable at a time.

In this activity, learners explore sound by constructing an instrument using some metal pipes, rubber bands, and a baseboard.

Learners design, build, and test models of "dragon boats" made from up to three milk cartons.

In this design challenge activity, learners build a boat that can hold 25 pennies (or 15 one inch metal washers) for at least ten seconds before sinking.

In this activity, learners explore the structural strength of triangles by creating their own free-standing geodesic dome out of plastic straws.

In this activity, learners will repurpose an old t-shirt to create their own yarn or string.

In this design challenge activity, learners build a tower that can support a tennis ball at least 18 inches off the ground while withstanding the wind from a fan.