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In this activity, a lightbulb is placed in front of a concave mirror. The actual lightbulb is not visible to the viewer, but the viewer can see the mirror image of the lightbulb formed in space.

In this activity, learners confront their perceptions of gravity in the solar system.

In this activity, learners are challenged to design and construct a windmill to harness the power of wind.

In this activity, learners are challenged to design and build a system of gears and kinematics to create a hand-stamping machine.

In this activity, learners are challenged to design, build and test a birdhouse that will stay cool in the sun.

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

In this activity (page 1 of the PDF under SciGirls Activity: Forensics), learners will use a home video camera with a “night vision” mode to test how various inks appear outside the spectrum of visibl

In this activity, learners will build a ball run contraption.

In this activity, learners work in teams to investigate the composition of unseen materials using a variety of tools.

In this outdoor, winter activity, learners find living green plants under the snow and determine the light and temperature conditions around the plants.

In this activity, learners are challenged to design and build the tools they need to survive being shipwrecked on a deserted island.

In this chemistry activity (page 5 of the PDF), learners make an acid-base indicator using cabbage. Learners then explore how various subtances react with this indicator.