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In this activity, learners string a line across the room and build cable cars that can move from on end to the other.

In this activity (page 1 of the PDF under SciGirls Activity: Rabbits), learners will visit a zoo, aquarium, or pet store to view a variety of fish.

In this activity, learners discover what happens when they crush wintergreen-flavored candies in a very dark room.

In this activity, learners build unique yo-yos, which spin round and round without moving up and down.

In this activity, learners try to revive wilted celery. Learners discover that plants wilt when their cells lose water through evaporation. Use this activity to introduce capillary action.

In this activity about phase change and condensation, learners boil water in an empty pop bottle in the microwave.

This activity teaches combustion as the interaction of a fuel source and oxygen.

In this simulation game, learners play as predators equipped with genetically different “mouths” (utensils) and hunt for “prey” (assorted beans).

In this activity, learners add different liquids to water and apply their working definition of “dissolving” to their observations.

This is an online exhibit about color perception. Learners set a random background color and then try to mix red, blue, and green light to match.

In this interactive game, learners listen to the songs of four different thrushes and then try to match each bird with its song.

In this activity, learners use simple materials to simulate the effect of X-rays in a safe way. Learners place a piece of window screen over a box and a cardboard pattern on top of the screen.

In this activity, learners explore Boyle's Law and discover that water will boil at room temperature if its pressure is lowered.

In this activity, learners follow simple historical maritime recipes to cook up hardtack and swanky, and then compare the foods they eat to what was served on ships in the past.

In this online activity, learners partner up to complete several physical exercises and assess their starting fitness level.

In this activity on page 5 of the PDF, learners mimic the process for making bricks. Learners shape and bake creations from a dough that is made from flour, salt, and water.

In this activity (located at the top of the page), learners make an easy river strainer and see what they can catch.

In this activity, learners explore the concept of valve operation and how engineers have adapted valves for use in mechanical heart valve design.

In this activity, learners use information gathered from a variety of sources to design and make their own insect.

In this activity (posted on March 14, 2011), learners follow the steps to construct a camera projector to explore lenses and refraction.