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In this activity, learners prepare four polymer elastomers and then compare their physical properties, such as texture, color, volume, density, and bounce height.

$5 - $10 per group Ages 11 - 18 45 to 60 minutes
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In this exploratory activity, learners experiment, observe and determine how various toys change from one form of energy to another.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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In this activity (Lesson 1), learners work in groups to create tide simulations.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners try to figure out who has their matching rock type by reading a description of their rock (no talking!).

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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In this activity (page 12), learners explore how molecules self-assemble and how molecules must fit together, like a lock and key, in order to identify each other and initiate a new function as a comb

$1 - $5 per group Ages 11 - 14 45 to 60 minutes
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In this outdoor game, learners simulate a herd of deer trying to survive in an area called the "home range." Learners explore the concept of "carrying capacity"—what size population of an organism can

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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Learners experiment with water gel crystals, or sodium polyacrylate crystals, which absorb hundreds of times their weight in water. When in pure water, the water gel crystals cannot be seen.

$5 - $10 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners are asked to examine the differences between two materials in a pair.

$10 - $20 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners will build ramps and test how the laws of physics apply do different objects. Learners will explore physics and cause and effect through this activity.

$1 - $5 per group Ages 4 - 14 45 to 60 minutes
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In this activity, learners explore conservation of energy by experimenting with a solar cell light device.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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Have you ever heard of a camera without a lens? In this activity, learners create a pinhole camera out of simple materials. They'll see the world in a whole new way: upside down and backwards!

$1 - $5 per student Ages 8 - 18 45 to 60 minutes
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In this activity, learners use an origami template to design eight amino acids. Learners configure the amino acids to form a protein. Use this activity to introduce proteins and amino acids.

$1 - $5 per student Ages 8 - 14 45 to 60 minutes
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In this activity, learners examine the culture and history of the tomb site.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners use a microscope to examine three different microbes: bacteria, yeast and paramecia. Educator will need to prepare the yeast solution one day before the activity.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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In this engineering design activity, learners will design, test, and build a “haunting machine” to solve a Sherlockian mystery.

$1 - $5 per group Ages 11 - 14 45 to 60 minutes
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In this activity, learners sample a star field to estimate the number of stars in the universe.

free Ages 8 - 14 45 to 60 minutes
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In this activity, learners create their own archaeological profiles.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners build their own sound machines and explore the interplay of motion and sound.

$5 - $10 per student Ages 6 - 14 45 to 60 minutes
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Does yeast breathe? Find out by watching how plastic bags filled with yeast, warm water and different amounts of sugar change over time.

$1 - $5 per student Ages 6 - 14 45 to 60 minutes
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In this activity, learners construct models of plants that are adapted to living under specific environmental conditions.

$10 - $20 per group Ages 6 - 14 45 to 60 minutes