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Showing results 921 to 940 of 1136

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In this activity, learners are challenged to design and construct a windmill to harness the power of wind.

Over $20 per group Ages 8 - 18 30 to 45 minutes
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In this series of activities (page 5), students are introduced to the design process.

$10 - $20 per group Ages 11 - 18 2 to 4 hours
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Align four color transparencies, each one a single color (cyan, magenta, yellow, and black), and see a beautiful full color image.

1 cent - $1 per student Ages 6 - 14 Under 5 minutes
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In this activity, "write" a secret message in genetic code as beads on a string.

$1 - $5 per student Ages 11 - 18 30 to 45 minutes
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In this water activity, learners discover ways to move water across the water table.

$5 - $10 per group Ages 4 - 6 10 to 30 minutes
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In this three/four-day lesson, learners calculate perimeters and areas and draw the castle plan to scale.

$5 - $10 per group Ages 8 - 14 1 to 7 days
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Experiment with friction and make bearings for a whirligig! This activity is a nice introduction to friction and bearings and demonstrates why bearings are useful for spinning.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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In this design challenge activity, learners make a balloon hover at eye level for five seconds, and then make it move by creating air currents.

$1 - $5 per student Ages 8 - 14 45 to 60 minutes
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In this design challenge activity, learners build a car that uses a battery-operated motor to "drive" at least ten feet.

$5 - $10 per student Ages 8 - 14 30 to 45 minutes
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This activity is a hit for family events and all ages—some will finish in 45 minutes; others can go on for hours.

1 cent - $1 per group Ages 6 - 14 45 to 60 minutes
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Experiment with force and pressure by building a balloon rocket. When launched, the balloon will run a track wherever you place the string.

1 cent - $1 per student Ages 4 - 11 30 to 45 minutes
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In this activity (page 12), learners apply the concepts of pixilation and pointillism to the world of biomedical science.

$5 - $10 per group Ages 11 - 14 1 to 2 hours
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In this environmental engineering activity, learners build windmills using everyday items. The first challenge is to build windmills that spin when placed in front of a fan.

$10 - $20 per group Ages 8 - 14 2 to 4 hours
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In this activity, learners will participate in a scavenger hunt involving sizes, shapes, and numbers. This activity works well with a whole group, individuals, or families.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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This creative lesson plan provides a visual way for learners to gain knowledge about the finite amount of fresh water on Earth and encourages the discussion of the various ways to conserve this resour

$1 - $5 per group Ages 6 - 14 10 to 30 minutes
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Learners design and build a roller coaster using simple materials. Learners experiment with potential and kinetic energy to get a marble to follow a track into a cup.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this mechanical engineering activity, learners design shadow puppets with moving parts and use them to tell stories.

$10 - $20 per group Ages 8 - 14 2 to 4 hours
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In this activity, learners make critters out of recyclables and apply the rules of mathematics to solve genetics problems.

$5 - $10 per group Ages 14 - 18 45 to 60 minutes
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In this activity, learners investigate the food, water, and space needs of common livestock animals.

free Ages 8 - 18 45 to 60 minutes
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In this engineering activity, learners design and build a mechanical arm to lift a small item.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes