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Showing results 41 to 60 of 183

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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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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 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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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 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 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 activity, learners will reuse plastic bags in an interesting way.

free Ages 6 - adult 45 to 60 minutes
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Using simple materials from around the house and recycled materials, learners will engineer a grabber device to pick up and put down objects that are at least 12 inches away.

free Ages 6 - adult 30 to 45 minutes
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In this activity (9th activity on the page), learners work in pairs to see how their perception of touch differs from reality.

free Ages 8 - 18 10 to 30 minutes
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In this activity, learners discover a brain process called habituation.

free Ages 6 - 18 10 to 30 minutes
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This quiz lets you estimate your annual radiation exposure.

free Ages 8 - 18 10 to 30 minutes
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In this activity, learners overlap the three primary colors to see how all other colors are made.

free Ages 11 - 18 10 to 30 minutes
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We're told from a young age that we have 5 senses, but we have many more. One of which is our awareness of our own body part's orientation and position.

free Ages 6 - 18 Under 5 minutes
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In this quick and easy activity and/or demonstration, learners illustrate the effect of the weight of air over our heads.

free Ages 6 - 18 Under 5 minutes
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Use this Moon Map Guide to help learners identify features on the Moon, while looking through a telescope.

free Ages 6 - adult 10 to 30 minutes
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In this activity (12th activity on the page), learners conduct an experiment to demonstrate how muscles are constantly feeding information to the brain about what they are doing.

free Ages 8 - 18 5 to 10 minutes
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In this interactive activity, learners analyze seashells to explore phylogeny and evolution. Learners identify similar and dissimilar seashells to create a phylogenetic tree.

free Ages 11 - 18 10 to 30 minutes
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In this activity, learners work in groups to design a parachute out of household items that keeps an egg secure when dropped from a certain height.

free Ages 11 - 18 45 to 60 minutes