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This activity introduces the idea of "divide and conquer" using a fictitious but serious problem--a pair of dirty socks has accidentally been wrapped in one of the presents that Santa is about to deli

free Ages 8 - 18 30 to 45 minutes
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In this interactive game, learners compare their music-listening skills with that of a three-month-old baby.

free Ages 6 - adult 5 to 10 minutes
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This activity is a sensory experience that recreates the sounds of a pond at night.

free Ages 6 - 11 30 to 45 minutes
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In this outdoor activity, learners will gather natural materials outside that they think a dinosaur would want to lay its eggs in.

free Ages 4 - 11 5 to 10 minutes
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In this activity, learners explore probability with dice.

free Ages 6 - 11 10 to 30 minutes
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In this quick activity, learners use a toaster to investigate the source for the Earth's wind. Learners hold a pinwheel above a toaster to discover that rising heat causes wind.

free Ages 4 - 14 Under 5 minutes
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In this activity, learners map their world by drawing a plan of their bedroom.

free Ages 8 - 14 30 to 45 minutes
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Combine math and exercise with this activity. Learners count how many times in a row they can skip rope or throw and catch a ball.

free Ages 4 - 14 10 to 30 minutes
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In this lesson plan, learners examine some of the of greenhouse gas emissions sources in their community.

free Ages 11 - 14 45 to 60 minutes
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In this online activity about anatomy, learners will drag and drop pieces of the heart into their proper positions and explore what function each part of the heart has.

free Ages 11 - 18 Under 5 minutes
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In this activity, learners will plan a snack within a budget. With a $20 limit (theoretical) to spend on snack for everyone, learners look over grocery store circulars and make their shopping lists.

free Ages 6 - 14 45 to 60 minutes
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In this activity, learners will be able to measure themselves in nanometers. A nanometer is a billionth of a meter, a unit of measurement used in nanotechnology.

free Ages 6 - 18 5 to 10 minutes
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In this online interactive, learners use fossils to infer temperatures 55 million years ago, at the sites where the fossils were found.

free Ages 11 - 18 10 to 30 minutes
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Learners work together as a group to learn a new physical activity. After working for a few rotations, learners time themselves as part of a contest.

free Ages 8 - 11 10 to 30 minutes
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To understand how skaters turn in midair, try this little experiment! Individuals can do this activity alone, but it works better with a partner.

free Ages 8 - 18 10 to 30 minutes
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In this math lesson, learners arrange pattern blocks to create tessellations and to explore geometric patterns. Learners first explore making patterns with a variety of pattern blocks.

free Ages 11 - 14 45 to 60 minutes
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In this activity, learners investigate parallax, a method used to measure distances to stars and planets in the solar system.

free Ages 6 - 18 Under 5 minutes
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In this online simulation, learners use antibiotics to cure patients with bacterial infections.

free Ages 8 - 11 5 to 10 minutes
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In this activity, learners will investigate how shorebirds and seabirds are extremely vulnerable to changes in their environment, whether human-induced or otherwise.

free Ages 14 - 18 1 to 2 hours
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In this online game, learners build complicated machines to complete simple tasks. The game starts with a power source on one side of the screen and the task on the other side.

free Ages 8 - 11 5 to 10 minutes