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Showing results 1101 to 1120 of 1593

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In this activity, learners build models of comets, using edible materials, to learn about comets' structure.

Over $20 per group Ages 6 - 18 45 to 60 minutes
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In this quick activity/demonstration (5th on the page), learners explore depth perception.

free Ages 6 - 18 Under 5 minutes
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In this activity, learners conduct a controlled experiment to examine which brand of soda makes the best (highest) soda geyser.

Over $20 per group Ages 8 - 18 1 to 2 hours
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In this health activity, learners create a device so that they not only feel their heartbeat, but also see it, using a straw and some clay.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air.

1 cent - $1 per student Ages 6 - 18 5 to 10 minutes
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In this activity, learners make an optical illusion toy from the 1800s to explore persistence of vision.

$1 - $5 per student Ages 6 - 11 5 to 10 minutes
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In this activity (page 2 of PDF under GPS: Cave Swallows Activity), learners will model how caves are formed by placing one piece of chalk in a cup of vinegar and another piece in a cup of water, then

$1 - $5 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners investigate static electricity using everyday objects at four different stations.

$1 - $5 per group Ages 6 - 14 10 to 30 minutes
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In this design challenge activity, learners add a jet-propulsion system (i.e. a balloon) to a blimp so it flies straight and far under its own power.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners use chocolate to explore how the Sun transfers heat to the Earth through radiation.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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This hands-on activity demonstrates how a material can act differently when it's nanometer-sized.

$1 - $5 per group Ages 6 - adult Under 5 minutes
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In this activity and/or demonstration, learners illustrate visually and physically that air has weight. Learners balance two equally-inflated balloons hanging from string on a yard stick.

1 cent - $1 per group Ages 8 - 18 5 to 10 minutes
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In this online activity, learners experience the thrill of pickle making, and explore how a cucumber becomes a pickle.

free Ages 6 - 14 5 to 10 minutes
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In this challenge, learners make a helium balloon hover in one spot and then move it through an obstacle course using air currents.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this design challenge activity, learners add headphones to a previously built instrument (see "Build a Band" activity) to make it easier to hear.

$5 - $10 per student Ages 8 - 14 45 to 60 minutes
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Do grapes, yes the grapes from the grocery store, move in the presence of a very strong magnet?

1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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Choose a recipe to double (or triple, quadruple, or halve). Show everyone the recipe and engage them in figuring out: How much will we need to increase the recipe to feed everyone?

1 cent - $1 per group Ages 4 - 14 30 to 45 minutes
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This Exploratorium activity explores size and scale. Through four levels of screen sizes, learners can sort out objects of different sizes.

$1 - $5 per student Ages 6 - 14 5 to 10 minutes
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In this activity, learners compare ways to measure their heart rates. Learners build their own stethoscopes and learn how exercise affects heart rate.

$5 - $10 per group Ages 8 - 14 1 to 2 hours
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In this quick activity, learners observe how wind creates ocean currents.

$1 - $5 per group Ages 6 - 14 5 to 10 minutes