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In this activity, learners explore force and motion by constructing cardboard cars that are propelled by balloons.

In this activity, learners construct cars that are powered by hand-made, electric propellers.

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

In this online Flash game and spacewalk mission simulation, learners are challenged to repair parts of a space station while balancing their oxygen and fuel use carefully.

In this activity, learners build styrofoam boats powered by twisted rubber bands.