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Showing results 141 to 160 of 162

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In this activity about saturation (page 1 of PDF under SciGirls Activity: Sand Dunes), learners will build a series of sand castle towers using a 16 oz cup.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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Water treatment on a large scale enables the supply of clean drinking water to communities.

$5 - $10 per group Ages 11 - adult 45 to 60 minutes
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In this outdoor activity, learners go "can fishing" and discover the kinds of aquatic organisms that live in and on submerged cans.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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After a discussion about what a parachute is and how it works, learners create parachutes using different materials that they think will work best.

$5 - $10 per group Ages 11 - 14 45 to 60 minutes
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In this activity, learners explore how an electromagnet works by making a simple one. Using this knowledge, learners design a diagram to make a working speaker using household materials.

$10 - $20 per group Ages 11 - 14 45 to 60 minutes
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Why is ocean water sometimes the warmest when the average daily air temperature starts to drop? In this activity, learners explore the differing heat capacities of water and air using real data.

1 cent - $1 per student Ages 11 - 18 45 to 60 minutes
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In this nutrition activity (page 16 of PDF), learners document their individual eating habits and learn whether their eating patterns meet their needs.

free Ages 8 - 14 45 to 60 minutes
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In ancient Chaco Canyon, the people used a "sun dagger" petroglyph to mark the passing of seasons.

1 cent - $1 per student Ages 8 - 18 45 to 60 minutes
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In this activity, learners investigate the history and development of agricultural biotechnology.

$10 - $20 per group Ages 11 - 14 45 to 60 minutes
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In this activity related to microbes, learners use water drops and hand lenses to begin the exploration of magnification. This activity also introduces learners to the microscope.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this experiment, learners discover how an airfoil creates lift. Learners use simple materials to build an airfoil and test it at different angles to investigate Bernoulli's principle.

$10 - $20 per student Ages 8 - 11 45 to 60 minutes
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In this activity, learners use the Sun's energy to cook marshmallows. Learners construct the solar oven out of simple everyday materials.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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This activity (on page 2 of the PDF under SciGirls Activity: Earthquakes) is a full inquiry investigation into aerial imagery.

free Ages 8 - 14 45 to 60 minutes
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In this activity, learners explore the difference between compact fluorescent light (CFL) bulbs and traditional incandescent bulbs.

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