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Showing results 1941 to 1960 of 2492

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Learners use chromatography to separate and analyze the mixture of pigments in leaves. Use this activity to discuss photosynthesis as well as why leaves change color in autumn.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners will use cereal to conduct an experiment and investigate how decreased bone density is related to increased risk of bone fracture.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this technology activity, learners build an "alarming" doormat to keep siblings out of their rooms. Use this activity to teach learners about circuits, switches, and sensors.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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In this activity related to music and sound vibrations, learners make a phonograph or record player out of simple materials. First, learners assemble the turntable, arm, and sound cone.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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This is an online game about stopping distance. Learners choose one of three vehicles and one of three speeds.

free Ages 14 - 18 5 to 10 minutes
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Learners use filter paper and water to analyze six different markers. They mark the paper with ink, and dip the paper in water. The water travels up the paper and dissolved ink travels with it.

$1 - $5 per group Ages 4 - 14 5 to 10 minutes
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Build a pinwheel that works without wind! This activity contains steps on how to build a parachuting pinwheel out of paper, a film canister, and some brads.

1 cent - $1 per student Ages 4 - 8 30 to 45 minutes
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In this activity, learners will explore how density is affected by temperature and how that can create currents.

$1 - $5 per group Ages 4 - 14 10 to 30 minutes
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In this hands-on activity, learners explore static electricity through the use of common household products. They also explore the connection between static electricity and cold weather.

1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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In this activity, learners find out what happens when they cover leaves with pieces of black construction paper. This activity shows learners that plants need sunlight to survive.

$1 - $5 per group Ages 4 - 11 1 to 7 days
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In this design challenge activity, learners investigate series circuits and motors to build a hand-held "kick stick." Their goal is create a battery-operated device that sends a Ping-Pong ball across

$5 - $10 per student Ages 8 - 14 45 to 60 minutes
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In this activity, learners explore Charles' Law in a syringe.

1 cent - $1 per group Ages 14 - 18 1 to 2 hours
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In this activity, learners make a parachute out of tissue paper, tape, and string. Then, learners test their parachute to see how many paper clips it can carry.

1 cent - $1 per student Ages 4 - 11 1 to 2 hours
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In this design challenge activity, learners invent a way to send a Ping-Pong ball flying high enough to catch it - like football with a twist!

$1 - $5 per student Ages 8 - 14 30 to 45 minutes
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Do you have an extra portable cassette tape player hanging around?

1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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In this activity, learners will trick out their bike with crafts and flair. Learners will explore symmetry, cause and effect and design through this activity.

$1 - $5 per student Ages 4 - 14 30 to 45 minutes
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En esta actividad los aprendices aprenderán un truco de magia donde la magia es la presión del aire.

1 cent - $1 per student Ages 11 - 14 5 to 10 minutes
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This perception trick focuses on conflicting information to the brain...instead of trying to see two images, you're trying to get a bright spot by overlapping the image you see through two tubes.

1 cent - $1 per student Ages 4 - 11 Under 5 minutes
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Learners mix vinegar and baking soda to produce a gas. With the addition of a bit of liquid soap, the gas becomes trapped in measurable bubbles.

$1 - $5 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners prepare four polymer elastomers and then compare their physical properties, such as texture, color, volume, density, and bounce height.

$5 - $10 per group Ages 14 - adult 1 to 2 hours