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Showing results 721 to 740 of 906

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In this activity, learners investigate the sense of sight and develop and conduct their own experiments.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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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, 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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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
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This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset.

$1 - $5 per student Ages 8 - 14 5 to 10 minutes
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This is a quick game about self-assembly (page 2 of PDF under Self-Assembly Activity). Like the molecules of DNA, learners will self-assemble into a pattern by following a simple set of rules.

free Ages 8 - 14 10 to 30 minutes
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In this activity about molecular diffusion (located on page 2 of the PDF under Nanosilver Activity), learners will make predictions and move molecules of iodine through a seemingly solid plastic sandw

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this "Sid the Science Kid" activity from Episode 108: My Ice Pops, learners observe reversible change while thinking about ways to make ice melt.

$1 - $5 per group Ages 4 - 6 2 to 4 hours
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This is an activity (located on page 3 of PDF under Gecko Feet Activity) about modeling a nanoscale phenomenon (gravity-defying gecko feet) with macroscale objects (shoes).

$1 - $5 per group Ages 8 - 14 2 to 4 hours
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Learners build a pendulum from a yo-yo, and then design their own experiment to determine what affects the pendulum's period of swing.

$1 - $5 per group Ages 11 - 14 45 to 60 minutes
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In this kinesthetic activity that demonstrates pressure, learners act as air molecules in a "container" as defined by a rope.

free Ages 8 - 14 10 to 30 minutes
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What causes frost to form on the outside of a cold container? In this activity, learners discover that liquid water can change states and freeze to become ice.

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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In this design challenge activity, learners invent a pinball-like game where a kick stick hits a ping pong ball into a target that buzzes.

$10 - $20 per student Ages 8 - 14 45 to 60 minutes
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In this activity (located on page 9 of the PDF), learners are introduced to Aesop's fable, "The Crow and the Pitcher." In the story, a clever crow drops pebbles into a pitcher to cause the water level

free Ages 6 - 11 45 to 60 minutes
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In this activity, learners explore how engineers have improved roofing designs and materials in order to protect the contents of buildings.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners design, build, test and redesign a display tower that will meet a specific set of criteria and constraints.

$10 - $20 per group Ages 8 - 18 2 to 4 hours