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In this activity, learners make a model of the solid Earth's layers that's good enough to eat! Learners use tasty foodstuffs to simulate Earth's inner core, outer core, mantle, and crust.

$1 - $5 per student Ages 6 - 14 30 to 45 minutes
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In this yummy activity about soil (page 9 of PDF), learners will create layers of soil using food. They will learn about the composition and role of each layer.

$1 - $5 per student Ages 8 - 11 30 to 45 minutes
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In this three-part activity, learners use food to determine the effects of wind, sandblasting and water on regolith (dust) formation and deposition on Earth.

$1 - $5 per student Ages 8 - 18 45 to 60 minutes
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Learners grow sugar crystals (rock candy). They make a hot solution that has an excess of sugar dissolved in it, then as the solution cools, they see sugar crystals form.

$1 - $5 per student Ages 6 - 11 4 to 24 hours
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In this activity, learners explore the forces at work in water. Learners experiment to find out what happens to pepper in water when they touch it with bar soap and liquid detergent.

$1 - $5 per student Ages 8 - 18 5 to 10 minutes
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Investigate the interaction of liquids of different densities and experiment with wave patterns with this hands-on activity.

$1 - $5 per group Ages 6 - 11 5 to 10 minutes
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In this quick activity, learners drink Avogadro's number worth of molecules - 6.02x10^23 molecules!

$1 - $5 per group Ages 11 - 18 5 to 10 minutes
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In this activity, learners model hot spot island formation, orientation and progression with condiments.

$1 - $5 per student Ages 8 - 18 5 to 10 minutes
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In this edible experiment, learners pour "Magic Shell" chocolate into a glass of cold water. They'll observe as pillow shaped structures form, which resemble lavas on the sea floor.

$1 - $5 per student Ages 8 - 18 5 to 10 minutes
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In this demonstration, learners observe the effects of air pressure. They will watch as marshmallows inside a bottle expand as a vacuum pump removes air from the bottle.

$1 - $5 per group Ages 4 - adult Under 5 minutes
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In this chemistry activity (page 3 of the PDF), learners will learn about crystals by growing their very own.

$1 - $5 per student Ages 6 - 14 1 to 7 days
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In this geology activity (page 6 of the PDF), learners explore how carbonic acid can slowly dissolve limestone and form caves.

$1 - $5 per group Ages 11 - 14 10 to 30 minutes
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In this environmental education demonstration (page 6 of the PDF), learners will see a tangible representation of the scarcity of soil resources on earth.

$1 - $5 per group Ages 8 - 11 10 to 30 minutes
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In this quick activity, learners break the tension that happens when water develops a "skin." Learners use water, pepper and some soap to discover the wonders of surface tension—the force that attract

$1 - $5 per student Ages 6 - 11 5 to 10 minutes
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Learners use M&Ms® (or any other multi-color, equally-sized small candy or pieces) to create a pie graph that expresses the composition of air.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this activity, learners conduct an experiment to explore how water flows up from a tree's roots to its leafy crown.

$1 - $5 per student Ages 6 - 14 1 to 2 hours
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In this investigation learners explore the differences between, and interdependence of, living and nonliving elements in a water ecosystem.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners use gumdrops and toothpicks to model the composition and molecular structure of three greenhouse gases: carbon dioxide (CO2), water vapor (H2O) and methane (CH4).

$1 - $5 per group Ages 6 - 14 10 to 30 minutes
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In this quick activity about pollutants and groundwater (page 2 of PDF under Water Clean-up Activity), learners build a model well with a toilet paper tube.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this quick activity, learners observe how the added sugar in a can of soda affects its density and thus, its ability to float in water.

$1 - $5 per group Ages 6 - 14 Under 5 minutes