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Showing results 741 to 760 of 2492

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In this space science activity, learners explore transits and the conditions when a transit may be seen.

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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In this optics/mathematics activity, learners use two hinged mirrors to create a kaleidoscope that shows multiple images of an object.

$5 - $10 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners explore the different heating properties of soil and water.

$1 - $5 per group Ages 8 - 14 2 to 4 hours
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In this activity (on page 8), learners model how marble statues and buildings are affected by acid rain.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners use simple materials and basic tools to construct a special toy to explore pendulums. As the head of the toy bobs one way, the eyeballs bob the other way.

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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This activity was designed for blind learners, but all types of learners can use it to investigate heterogeneous and homogeneous mixtures and solutions, identify the differences, and explore the conce

$1 - $5 per student Ages 11 - 18 10 to 30 minutes
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In this activity about afterimages, learners explore what happens when receptor cells called cones in your eye's retina get tired.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners use raisins and seltzer water to understand why waves don’t move objects forward. Learners conduct two simple experiments to understand the circular movement of waves.

1 cent - $1 per student Ages 8 - 11 10 to 30 minutes
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In this water activity, learners test which objects float and which sink. Learners discover that objects behave differently in water.

$5 - $10 per group Ages 4 - 6 30 to 45 minutes
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Learners create a small explosion by collecting hydrogen and oxygen gas together and squeezing them into a flame.

1 cent - $1 per group Ages 14 - adult Under 5 minutes
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In this activity (page 1 of the PDF under SciGirls Activity: Double Dutch), learners will stand twelve feet apart swinging a rope at the slowest tempo possible while someone uses a stopwatch to record

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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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 their own heat waves in an aquarium.

$5 - $10 per group Ages 8 - 18 10 to 30 minutes
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Use this model to demonstrate the goal of NASA's Kepler Mission: to find extrasolar planets through the transit method.

Over $20 per group Ages 11 - 18 10 to 30 minutes
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This activity guide includes instructions on how to build a "Shake Table" by mounting an eccentric mass (off center) on the shaft of a small dc motor.

Over $20 per group Ages 11 - 18 45 to 60 minutes
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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 experiment with their voices and noisemakers to understand the connections between vibrations and the sounds created by those vibrations.

$10 - $20 per group Ages 4 - 6 10 to 30 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 learn about friction by making their own miniature hovercraft.

$5 - $10 per student Ages 11 - adult
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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