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Showing results 121 to 140 of 182

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In this activity, learners explore the concept of rotational equilibrium. Learners work in teams to estimate and determine the force within a mobile design.

$5 - $10 per group Ages 14 - 18 1 to 2 hours
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Using a vertical wind tube and using simple materials, individuals and groups attempt to design a "satellite" that floats for at least 5 seconds.

$1 - $5 per student Ages 4 - adult 30 to 45 minutes
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Learners create an Incan counting device called a quipu (pronounced kee-poo).

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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In this fun and, at times, hilarious force and motion activity, learners will use household objects to build a crazy contraption and see how far they can get a tennis ball to move.

$1 - $5 per group Ages 4 - adult 1 to 2 hours
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In this activity, learners identify different plastics in a mystery bag. Learners discover that plastics are classified #1 through #7.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.

$10 - $20 per group Ages 6 - adult 10 to 30 minutes
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In this activity, learners cut wells in JELL-O© and load the wells with different detergent solutions.

$1 - $5 per student Ages 11 - 18 4 to 24 hours
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In this activity, learners use three types of cheesy snacks--cheese balls, cheese puffs, and Cheetos--to learn about polymers.

$5 - $10 per group Ages 14 - adult 30 to 45 minutes
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This guide features three related ramp explorations in which learners investigate the following science concepts: when placed on a ramp, some objects roll, others slide, and others stay put; the shape

$5 - $10 per group Ages 4 - 6 45 to 60 minutes
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In this activity, learners construct drawing machines using a cup, some markers, and a cricket to control the movement. A programmed LEGO RCX or Cricket is required for this high-tech version.

$1 - $5 per student Ages 8 - 14 45 to 60 minutes
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In this activity, learners will work together to create a program to navigate a Remotely Operated Vehicle (ROV) through an obstacle course.

$5 - $10 per group Ages 8 - 14 10 to 30 minutes
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In this activity about encryption, learners cut out a secret decoder badge from a handout and use it to encode messages to each other.

1 cent - $1 per student Ages 8 - 14 30 to 45 minutes
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In this water pollution activity, learners create pond water cultures and investigate the effects of adding chemicals or natural nutrients.

$5 - $10 per group Ages 8 - 14 1 to 7 days
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Put on a pair of gloves and be the conductor of your invisible orchestra!

Over $20 per student Ages 8 - adult 45 to 60 minutes
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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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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 with several mini experiments, learners explore the chemistry that helps scientists learn about the environment and how they can help save it.

$1 - $5 per group Ages 8 - 14 4 to 24 hours
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In this activity, learners design, build and test wind turbines. Learners go through the design process and use the scientific method to test important blade variables.

Over $20 per group Ages 8 - 18 2 to 4 hours
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In this activity, learners mimic remote sensing. Learners use a stick to measure the distance to a "planet surface" they cannot see, and create their own map of the landscape.

$5 - $10 per student Ages 6 - 11 10 to 30 minutes
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This activity (on pages 38-43) has learners simulate the way scientists track and map the movement of otters in the wild using radio trackers.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes