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Showing results 261 to 280 of 740

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In this activity, learners will compare predicted and observed tides using data from The National Oceanic and Atmospheric Administration(NOAA).

free Ages 14 - 18 45 to 60 minutes
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In this activity, learners string a line across the room and build cable cars that can move from on end to the other.

$1 - $5 per student Ages 8 - 18 45 to 60 minutes
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In this activity, learners build unique yo-yos, which spin round and round without moving up and down.

$1 - $5 per student Ages 11 - 18 45 to 60 minutes
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In this simulation game, learners play as predators equipped with genetically different “mouths” (utensils) and hunt for “prey” (assorted beans).

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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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.

free Ages 6 - 18 5 to 10 minutes
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In this interactive game, learners listen to the songs of four different thrushes and then try to match each bird with its song.

free Ages 6 - adult 5 to 10 minutes
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In this activity, learners explore Boyle's Law and discover that water will boil at room temperature if its pressure is lowered.

1 cent - $1 per student Ages 11 - 18 10 to 30 minutes
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In this activity, learners explore the concept of valve operation and how engineers have adapted valves for use in mechanical heart valve design.

Over $20 per group Ages 8 - adult 1 to 2 hours
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In this activity (posted on March 14, 2011), learners follow the steps to construct a camera projector to explore lenses and refraction.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners make an electromagnet motor to demonstrate the most basic method of changing electrical energy into mechanical energy.

$5 - $10 per group Ages 14 - 18 45 to 60 minutes
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In this activity, learners explore physics by building a catapult that launches marshmallows with household objects.

$5 - $10 per student Ages 8 - adult 30 to 45 minutes
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In this activity, learners will measure the length of a shadow and use the distance from the equator to calculate the circumference of the earth.

1 cent - $1 per group Ages 8 - 18 10 to 30 minutes
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In this activity, learners discover how solar energy can be used to heat water.

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners follow simple directions to explore and create platonic solids.

1 cent - $1 per student Ages 11 - 18 30 to 45 minutes
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In this activity, learners use a simple 3D model to discover why the Moon has phases.

$5 - $10 per group Ages 6 - adult 10 to 30 minutes
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In this activity, learners make a model of a power plant that uses steam. Learners use simple materials like foil, a tin can, and a pot of water to model a geothermal power plant.

$1 - $5 per student Ages 8 - 18 30 to 45 minutes
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In this activity, learners will test soil content using their sample, some water and a container that seals.

1 cent - $1 per student Ages 4 - adult Under 5 minutes
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In this activity, learners create their own obstacle course based on Bernoulli's Principle and try to get a floating ball from the start of their course to the finish line.

$5 - $10 per group Ages 6 - 18 30 to 45 minutes
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Many germs spread by our hands, and often times, people don't wash their hands well enough to get rid of germs.

$1 - $5 per group Ages 6 - adult 5 to 10 minutes
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In this activity, learners will imagine the challenges and opportunities of asteroid mining.

$1 - $5 per group Ages 4 - adult 10 to 30 minutes