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In this activity about ramps, learners explore and measure the rate at which spherical objects roll down a ramp.

Learners discover how important their thumbs are by attempting various tasks without them. After tying up their thumbs, learners attempt to legibly write their names or play catch with a tennis ball.

This activity models the necessary balance of creating power and cleaning up its associated waste. Learners participate in a game where they attempt to move forward toward a goal.

In this version of tag, a large group of learners model how the body fights infection. Learners act as germs, as lymphocytes, and as the body's cells threatened by germs.

Learners make their own paper. They start by shredding old newspaper, clean toilet paper, and clean paper towels.

Learners draw and cut out shapes of organs from construction paper. Then they attach these organs to the body of one learner to make a life-sized map of all the internal organs.

Learners estimate how many small triangles will fill a larger shape. Then they use a triangle stamp (or stencil made from a file folder) to fill the larger shape with triangles.

Learners model the Sun-Earth-Moon system to show what causes the Moon's appearance to change when viewed from the Earth.

Learners model the ocean currents that carry hot water from the tropics to northern latitudes.

In this physical activity, groups of learners act as blood cells traveling through the circulatory system.

Learners look at labels on items in the room to determine where each item was manufactured, then write about the item on an index card.

Learners build a model of the planets in the solar system. In their model, the planets are spaced in their relative distance from the Sun.

Learners build a simple solar oven from a shoebox, black construction paper, and aluminum foil. Over the course of a few hours, the oven heats up water enough to brew tea.