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Showing results 201 to 220 of 320

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In this activity, learners use rice grains to model the composition of the atmosphere of the Earth today and in 1880. Learners assemble the model while measuring percentages.

$1 - $5 per group Ages 11 - 18 1 to 2 hours
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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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In this activity, learners explore how boats are engineered to achieve speed.

Over $20 per group Ages 11 - 18 2 to 4 hours
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In this activity on page 1 of the PDF, learners compare the relative sizes of biological objects (like DNA and bacteria) that can't be seen by the naked eye.

free Ages 8 - 18 10 to 30 minutes
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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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The goal of this activity is to build a miniature bobsled that is either the fastest or the slowest. Learners use recycled materials to design, build, and test their bobsled on a bobsled track.

$5 - $10 per group Ages 6 - 18 10 to 30 minutes
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In this activity, learners make different shapes that hold exactly one mole of gas (air).

$1 - $5 per group Ages 14 - 18 30 to 45 minutes
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In this activity, learners explore how engineers design tire treads to increase safety and reliability.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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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 create a tiny electric, motorized dancer. Learners use the interactions of magnetism and electric current to make a wire spin, while displaying the Lorentz Force in action.

$1 - $5 per student Ages 8 - 18 30 to 45 minutes
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In this activity, learners explore how the shapes, sizes, and distances of land masses appear differently on two different models of Earth: an icosahedron and a flat map.

1 cent - $1 per group Ages 11 - 18 30 to 45 minutes
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Learners make their own simple slide rules out of paper and learn how they work.

1 cent - $1 per group Ages 8 - adult 10 to 30 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 explore the endless possibilities of cardboard engineering in this open-ended STEAM activity. Practice being creative by building structures with no glue, only cardboard and scissors.

free Ages 4 - adult 10 to 30 minutes
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Using simple, inexpensive items, learners build and test submarine models.

$10 - $20 per group Ages 11 - 18 45 to 60 minutes
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In this activity (page 89 of the PDF), learners compare and contrast pitch and roll motions by using a Magic Carpet maze similar to one that was used for Neurolab investigations about microgravity.

1 cent - $1 per student Ages 8 - 18 45 to 60 minutes
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From this How To slide show, you create an Audio Tape Bow that can play distorted audio sounds by running it across a tape head.

$1 - $5 per student Ages 8 - adult 45 to 60 minutes
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This activity offers learners and their families several ways to raise their awareness together about home water.

free Ages 4 - adult 1 to 7 days
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In this activity, learners use simple items to construct a device for indicating air pressure changes.

$1 - $5 per student Ages 8 - 18 1 to 4 weeks
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In this activity (4th activity on the page), learners use their sense of smell to rate and arrange containers filled with different dilutions of a scent (like cologne or fruit juice) in order from wea

$1 - $5 per group Ages 8 - 18 5 to 10 minutes