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In this activity, learners discover that as the salinity of water increases, the density increases as well. Learners prove this by attempting to float fresh eggs in saltwater and freshwater.

1 cent - $1 per group Ages 6 - 14 5 to 10 minutes
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This hands-on activity lets participant explore chemical reactions as they create a soda explosion with lots of bubbles. The bubbles in soda are made of carbon dioxide gas.

$1 - $5 per student Ages 6 - 11 5 to 10 minutes
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In this activity, learners will explore the density of an object in water. Learners will compare what happens to fruits and vegetables in regular and salt water.

$1 - $5 per student Ages 4 - 14 5 to 10 minutes
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In this activity, learners investigate diffusion by creating underwater "fireworks" using food coloring, oil and water.

$1 - $5 per student Ages 6 - 11 5 to 10 minutes
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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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In this math activity, learners guess which cereals contain the most sugar. Learners use the nutrition labels on the cereal boxes to find the cereal with the least amount of sugar.

$5 - $10 per group Ages 6 - 11 5 to 10 minutes
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This is a highly visual demonstration that illustrates both the effects of density and chemical reactions.

$1 - $5 per group Ages 4 - adult 5 to 10 minutes
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This activity helps learners learn about math through a real-world scenario. Three friends are baking cookies for their school’s bake sale.

$1 - $5 per group Ages 8 - 11 5 to 10 minutes
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In this chemistry demonstration, learners investigate the factors that increase the rate of dissolution for a solid.

1 cent - $1 per group Ages 11 - 18 5 to 10 minutes
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Learners observe a tank of water containing cans of diet and regular sodas. The diet sodas float and the regular sodas sink. All the cans contain the same amount of liquid and the same amount of air.

$5 - $10 per group Ages 6 - 14 5 to 10 minutes
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In this a hands-on activity, learners explore how to put ice cream in an oven without it melting. Ideas in this activity include insulation and cooking.

$1 - $5 per student Ages 4 - 14 5 to 10 minutes
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In this physics demonstration, learners are challenged to insert a straw the furthest into a potato.

$1 - $5 per group Ages 4 - adult 5 to 10 minutes
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In this two-part activity, learners use household items to smell the difference between some stereoisomers, or molecules which are mirror images of one another.

$1 - $5 per student Ages 8 - 18 5 to 10 minutes
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In this activity, learners explore how eating unhealthy food can damage a heart and arteries.

1 cent - $1 per student Ages 8 - adult 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 biology activity, learners recreate the process of digestion in a zip lock bag. A bit of soda pop added to some crumbled crackers approximates how acids in the stomach dissolve food.

1 cent - $1 per student Ages 8 - 11 5 to 10 minutes
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In this chemistry activity, learners use spaghetti to explore density and chemical reactions.

$1 - $5 per group Ages 6 - 18 5 to 10 minutes
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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.

$1 - $5 per group Ages 4 - 18 5 to 10 minutes
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In this activity, learners use water, oil, and food coloring to observe a chemical reaction that creates a shower of colors inside of a glass.

$1 - $5 per group Ages 6 - adult 5 to 10 minutes
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This is a series of three quick science activities to do with a spoon, knife, and fork. In the first two activities, learners use the flatware to explore optics, mirrors, reflection, and distortion.

free Ages 4 - 14 5 to 10 minutes