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Showing results 81 to 100 of 433

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In this kinesthetic activity, learners will play a game with a ball to demonstrate the Coriolis force, which partly explains why hurricanes in the Northern Hemisphere rotate counterclockwise.

free Ages 8 - 14 10 to 30 minutes
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In this activity, learners build a tiny but powerful flashlight out of simple materials. Use this activity to introduce learners to electrical circuits and conductivity.

$5 - $10 per student Ages 8 - 11 10 to 30 minutes
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In this activity, learners incorporate a simple switch into a battery/bulb circuit. Learners will use their knowledge of circuits to design and make their own switches using common materials.

$10 - $20 per group Ages 8 - 11 45 to 60 minutes
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In this activity, learners experiment with the density of ice, water, and oil. Learners will discover that the density of a liquid determines whether it will float above or sink below another liquid.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this activity, learners build inexpensive kaleidoscopes using transparency paper and foil (instead of mirrors).

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this activity, learners explore clouds and how they form.

$1 - $5 per group Ages 8 - 18 5 to 10 minutes
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Learners explore magnetism and motion as they build a simple marble run. Learners test different arrangements of plastic and cardboard tubes, bottles, and cups on a magnetic board.

$5 - $10 per student Ages 6 - 14 1 to 2 hours
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In this activity, learners test the rate of ripening fruit and vegetables and use a chemical to inhibit the ripening process.

$10 - $20 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners explore how the process of folding has impacts on engineering and is evident in nature.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this activity (page 2 of PDF under GPS: Garbology Activity), learners will prepare sheets of homemade recycled paper from several different source pulps.

$10 - $20 per group Ages 8 - 14 1 to 7 days
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In this activity, learners explore how engineers have developed big wheels or Ferris wheels.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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This activity (located on page 3 of the PDF under GPS: Garbology Activity) is a full inquiry investigation into design optimization using recycled materials.

Over $20 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners build small animated toys that move.

$1 - $5 per student Ages 6 - 14 30 to 45 minutes
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In this engineering activity, learners examine bicycle mechanics and gear ratios. Learners determine which gears will help them bike a set course in the shortest amount of time.

1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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In this demonstration, learners observe how liquid nitrogen both boils and freezes ingredients to make ice cream in two minutes.

$10 - $20 per group Ages 6 - 14 Under 5 minutes
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In this activity, learners build a figure that moves and "comes to life" when they pull its string.

$1 - $5 per student Ages 6 - 14 1 to 2 hours
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Build your own version of the classic physics toy using simple materials.

$10 - $20 per student Ages 8 - 18 1 to 2 hours
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In this activity, learners explore electronic communication, the Morse Code system, and advances all the way through text messaging. Learners build a simple circuit, send messages to one another.

$5 - $10 per group Ages 8 - 14 1 to 2 hours
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This quick demonstration (on page 11 of PDF) allows learners to understand why scientists think water ice could remain frozen in always-dark craters at the poles of the Moon.

$1 - $5 per group Ages 6 - adult 5 to 10 minutes
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In this activity, learners explore the function and engineering of dams and how dams have many uses and solve many problems in the world.

$10 - $20 per group Ages 8 - 18 1 to 2 hours