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Showing results 241 to 260 of 637

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In this online Flash game, learners take to the skies in a hot air balloon and are challenged to beat other balloonists' times to the finish line without crashing.

free Ages 6 - 14 5 to 10 minutes
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In this activity, learners build a simple solar oven out of household materials to melt chocolate and marshmallow between graham crackers--known as s'mores.

$5 - $10 per group Ages 8 - 14 1 to 2 hours
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In this demonstration, learners explore a variation of a Foucault pendulum, but upside down.

$1 - $5 per group Ages 11 - 18 10 to 30 minutes
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In this activity (on page 1), learners role play as atoms to explore how atoms can be rearranged to make different materials.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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In this chemistry demonstration, acid rain is simulated in a petri dish.

$1 - $5 per group Ages 14 - adult 5 to 10 minutes
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In this 7-10 day investigation, learners develop an understanding of waves and tides and their motion through discussion, demonstration, and hands-on activities.

$1 - $5 per group Ages 11 - 14 1 to 4 weeks
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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 chemistry activity (page 3 of the PDF), learners will learn about crystals by growing their very own.

$1 - $5 per student Ages 6 - 14 1 to 7 days
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In this outdoor, beach activity, learners use tennis balls, water balloons and other simple devices to investigate the movement of waves and currents off a sandy beach.

Over $20 per group Ages 8 - adult 1 to 2 hours
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In this demonstration about force and motion, learners will explore the forces that affect a pendulum A simple model pendulum comprised of a ball and string demonstrates how pendulums work as well as

$1 - $5 per student Ages 4 - 11 5 to 10 minutes
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Learners make a refrigerator that works without electricity. The pot-in-pot refrigerator works by evaporation: a layer of sand is placed between two terra cotta pots and thoroughly soaked with water.

$1 - $5 per group Ages 11 - 14 45 to 60 minutes
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In this two-part activity, learners map a navigation plan to get from Earth to Mars and back. In activity one, learners represent the orbital paths of Earth through dance and dramatic movement.

1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners are challenged to calculate their own weight on various planets using a scale and calculator. Older learners may be challenged to do so without using calculators.

$10 - $20 per group Ages 8 - adult 10 to 30 minutes
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In this activity, learners explore rocketry and the principals of space flight.

Over $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners explore moving air and the physics of lift and drag by constructing homemade wind tunnels.

$10 - $20 per group Ages 6 - 11 1 to 2 hours
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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
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In this two-part activity, learners investigate buoyancy, density and surface area as well as biodiversity and the relationship between the structure and function of organisms.

Over $20 per group Ages 8 - 18 1 to 2 hours
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In this two-part lesson, learners discover how large bodies of water can serve as a heat source or sink at different times and how proximity to water moderates climate along the coast.

$5 - $10 per group Ages 11 - 14 1 to 2 hours
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Coins are everyday objects which tell a lot about the people who use them.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes