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In this activity, learners burn a peanut, which produces a flame that can be used to boil away water and count the calories contained in the peanut.

$5 - $10 per group Ages 11 - 18 10 to 30 minutes
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Make snack time into measuring time and learn to read Nutrition Facts labels. Try this when you’re using “pourable” foods, such as cereal, yoghurt, or juice.

1 cent - $1 per group Ages 6 - 14 5 to 10 minutes
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In this activity, learners mix water, cooking oil, and liquid food coloring to create beautiful colored designs in a cup. Use this activity to explore liquid density and solubility.

$1 - $5 per student Ages 6 - 11 5 to 10 minutes
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In this colorful activity (page 6 of the PDF), learners will make a multicolor density column by using different concentrations of sugar solutions.

$5 - $10 per group Ages 8 - 14 10 to 30 minutes
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In this activity, learners explore the concept of density by pouring 5 different liquids into a jar. Food coloring is added if needed to give each liquid a distinct color.

$1 - $5 per student Ages 4 - 14 5 to 10 minutes
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Using two baby food jars, food coloring, and an index card, you'll 'marry' the jars to see how hot water and cold water mix.

$1 - $5 per group Ages 6 - 11 5 to 10 minutes
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In this chemistry activity (on page 2 of the PDF), learners make a layered drink with liquids of different densities.

$1 - $5 per student Ages 6 - 14 5 to 10 minutes
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In this activity (on page 2 of PDF under GPS: Roller Coaster Design Activity), learners will use food cans of many different properties (sizes, shapes, and weights) and set two cans on their sides at

free Ages 8 - 14 45 to 60 minutes
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This activity provides a hands-on experience with a scale model, a relatively high viscosity fluid, and feeding behaviors.

$5 - $10 per group Ages 8 - 18 30 to 45 minutes
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In this life science activity (page 8 of the PDF), learners explore the carbon cycle by mixing yeast, sugar and water.

Over $20 per group Ages 8 - 14 1 to 2 hours
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In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.

$10 - $20 per group Ages 8 - 14 30 to 45 minutes
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It's difficult to see convection currents in any liquid that's undergoing a temperature change, but in this Exploratorium Science Snack, you can see the currents with the help of food coloring.

1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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In the kitchen, learners can perform their own density investigation.

1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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In this physics activity, learners attempt to lift a jar full of rice using only a spoon.

$5 - $10 per group Ages 8 - 11 10 to 30 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 explore the concepts of density and basic chemical reactions as they create a homemade lava lamp effect using water, oil, food coloring, and Alka-Seltzer tablets.

$5 - $10 per student Ages 6 - 14 10 to 30 minutes
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In this hands-on activity, learners make the world's simplest Cartesian diver, using only a plastic bottle, some water, and a condiment packet.

free Ages 6 - adult 5 to 10 minutes
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In this activity, learners use oil, water, food coloring and antacid tablets to create a bubbling lava lamp. Use this activity to introduce concepts related to density, hydrophobicity vs.

$5 - $10 per student Ages 6 - 11 10 to 30 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