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This activity (on pages 21-32 of PDF) has learners act out several classic brain teasers.

As a group, learners investigate three packages which are all the same size and shape, but have different contents. One is filled with foam, one is filled with wood, and one is filled with metal.

This is an activity exploring color and color mixing.

In this activity (on pages 11-14 of PDF), learners cut out pictures from magazines of foods that help make bones strong and glue the pictures to a paper bone.

In this activity (on pages 15-18 of PDF), learners make a life-size two-dimensional paper model of their own skeletons.

Using electrolysis, learners produce hydrogen gas and oxygen gas from water molecules in a solution.

Learners make a refrigerator that works without electricity. The pot-in-pot refrigerator works by evaporation: a layer of sand is placed between two terra cotta pots and thoroughly soaked with water.

Learners make their own acid-base indicator from red cabbage. They use this indicator to test substances around the house.

In this activity (on page 2 of the PDF), learners (with adult help and supervision) investigate how heat affects polystyrene plastic.

Learners explore the Bernoulli effect by building an airfoil (airplane wing) and making it fly.

This quiz lets you estimate your annual radiation exposure.

Learners add two dyes to mineral oil and water, and then compare their miscibility (how well they mix) in each.

This display shows the dangers of acid rain on buildings and other structures as two concrete bunny rabbits are disintegrated by sulfuric acid. Learners scrape chalk onto the concrete bunnies.

This game depicts a woman going through her day, faced with various loud sounds.

Learners gain an intuitive knowledge of the physical aspects of watersheds by creating their own watershed models.

Learners investigate an iron-fortified cereal by stirring it with a strong magnet. They discover that metallic iron is present in some cereals.

Learners measure a bottle full of air, and then use a vacuum pump to remove the air. When they re-weigh the bottle, learners find the mass is about 0.8g less.

This game plays a dozen different sounds, altered to simulate what they would sound like if you had hearing loss.

During this activity, learners will make different versions of "ooze" using varied proportions of detergent and glue.

In this activity, learners will model the mechanical weathering and erosion of rocks in a stream or river.