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Benham’s Disk
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In this activity (on page 2 of the PDF under GPS: Light and Color Activity), learners will see the illusion of colors produced by a rotating black and white image known as Benham’s Disk.

Turbidity
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This is an activity about turbidity, or the amount of sediment suspended in water.

Challenge: Microgravity
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In this activity about the circulatory system and space travel (on page 38 of the PDF), learners use water balloons to simulate the effects of gravity and microgravity on fluid distribution in the bod

Water: A Basic Ingredient
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In this activity, learners explore healthy choices related to the liquids they drink. The importance of water and milk as essential nutrients for a healthy body is the focus of the experience.

Iodine Investigators!
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In this activity on page 7 of the PDF (Chemistry—It’s Elemental), learners use iodine to identify foods that contain starch.

Water Cycle in a Bag
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In this activity, learners create a biosphere in a baggie.

Torsion Drum
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In this activity, learners build a musical drum using a cardboard tube, plastic wrap, and beads.

Kimchee Fermentation Chamber
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Learners make kimchee or sauerkraut, which is really just fermented cabbage, in a 2-liter plastic bottle.
Create a Mangrove Tree
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In this group activity, learners will explore the characteristics, functions and uniqueness of the mangrove tree.

Veggies with Vigor
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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.

Breaking Up with Combustion
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This activity teaches combustion as the interaction of a fuel source and oxygen.

What is an Animal Group?
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In this activity related to dinosaurs, learners explore why animals live in families. Learners discuss and identify animals living in families or groups from images and photos.

Conservation of Mass
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This activity was designed for blind learners, but all types of learners can participate to learn about conservation of gas. This is one of the classic experiments using baking soda and vinegar.

Yeast-Air Balloons
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In this activity, learners make a yeast-air balloon to get a better idea of what yeast can do. Learners discover that the purpose of leaveners like yeast is to produce the gas that makes bread rise.

Tidepool in the Classroom
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In this activity (page 4 of the pdf), learners build a model of a tide pool, using chicken wire, paper mache, and other craft materials.

Small Habitats
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In this activity, learners build a model of a self-sustaining habitat (growing grass and beans from seeds).

Energetic Musical Instruments
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Learners design and create musical instruments from common objects; their challenge is to create an instrument that can make three different tones.

Recycling Rules: Understanding Recycling and a MRF
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In this activity, learners simulate the separation techniques that materials recovery facilities (MRFs) use and then design their own series of recycling techniques.

In Search of Pollen
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In this activity (on pages 9-14), learners dissect a real flower -- the kind of work botanists do.

Show Your Colors!
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In this family or group activity, learners conduct a chromatography experiment to reveal the colors that leaves "hide" under their green pigments.