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Take Ten: Cleaning Up is Fun
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In this activity, learners will make cleaning up more fun with predictions and counting. Estimate how many things are on the floor (or table), then count as they are picked up.

Audio Memory
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In this interactive game, learners will test their memory of animal and insect sounds. Flip over cards, listen to the sound, and try to find the ones that match.

What am I?
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In this activity, learners examine nanoscale structures of common things.

Count Around
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Learners explore their surroundings while reasoning about categories and counting.

Swirling Milk
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In this chemistry activity, learners prepare two petri dishes, one filled with water and one filled with milk.

Exploring Materials: Graphene
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In this activity, learners investigate the properties of graphene and graphite.

Do Sweat It!
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In this activity, learners explore why humans sweat. Learners compare the effects of heat on a balloon filled with air and a balloon filled water.

Exploring Earth: Paper Mountains
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In this activity, learners explore in what ways the shape of the land and the pull of gravity influence how water moves over Earth.

Big Sun, Small Moon
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Learners will explore the concept of angular distance, and investigate why the moon appears to be the same size as the sun during a solar eclipse, despite the sun being much larger.

Exploring Tools: Mitten Challenge
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In this activity, learners build a LEGO® structure while wearing mittens. This activity shows learners how difficult it is to build small things when your tools are too big.

Seeing Is Believing
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This activity is designed to accompany the PBS documentary about African-American chemist "Percy Julian: Forgotten Genius." Learners look through two cups with small holes in them to simulate what it'

Starch Slime
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Learners mix liquid water with solid cornstarch. They investigate the slime produced, which has properties of both a solid and a liquid.

Número misterioso
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Combine la lógica y los números en este juego para todas las edades.

Planetary Rescue Squad
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This is an online Flash game where learners can experiment with ballistics and how to compensate for the varying levels of gravity found on the planets of our Solar System.

CANdemonium: Make a Drum Out of Recycled Cans
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With three cans and some tape, make a drum that you bonk down on any surface to produce a variety of sounds. This activity also teaches you about pitch, vibration, and frequency.

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

Exploring the Universe: Nebula Spin Art
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In this activity, participants will learn about how gigantic clouds of gas and dust in space, called nebulas, are formed. They'll create their own colorful model nebula using paint and a spinner.

Mix-N-Match Light
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This is an online exhibit about color perception. Learners set a random background color and then try to mix red, blue, and green light to match.

Exploring Forces: Static Electricity
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In this activity, learners investigate what happens when you build up static electricity on plastic balls.

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.