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Showing results 661 to 680 of 1061

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In this activity, learners build a simple pinhole viewer. They use this apparatus to project images from a variety of light sources, including a candle, the Sun, and the Moon.

$1 - $5 per student Ages 6 - 14 30 to 45 minutes
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In this archaeology activity, learners make observations and conduct an experiment to demonstrate the effect saltwater has on artifacts.

$10 - $20 per group Ages 8 - 14 1 to 7 days
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In this three-part activity, learners use food to determine the effects of wind, sandblasting and water on regolith (dust) formation and deposition on Earth.

$1 - $5 per student Ages 8 - 18 45 to 60 minutes
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In this activity, learners explore the etymology of dinosaur names.

1 cent - $1 per group Ages 8 - 11 45 to 60 minutes
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In this activity about water solubility and density, learners use critical thinking skills to determine why water can dissolve some things and not others.

$5 - $10 per student Ages 8 - 11 10 to 30 minutes
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In this activity, learners will compare predicted and observed tides using data from The National Oceanic and Atmospheric Administration(NOAA).

free Ages 14 - 18 45 to 60 minutes
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Discover how a refracting telescope works by making one from scratch using common items. This telescope won't have a tube so the learner can see how an image is formed inside the telescope.

$10 - $20 per group Ages 14 - adult 45 to 60 minutes
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In this data collection activity about crabs, learners use data from the Virginia Institute of Marine Science (VIMS) trawl survey to determine the areas of the Chesapeake Bay that are being used by bl

$1 - $5 per group Ages 14 - 18 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 will discover how our universe is continuously expanding.

1 cent - $1 per student Ages 4 - 14 10 to 30 minutes
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In this activity, learners use tsunami time travel maps to predict how long it will take a tsunami to reach the shore.

free Ages 14 - adult 1 to 2 hours
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In this three part activity, learners explore and experiment with shadows to learn about the Sun's relative motion in the sky.

1 cent - $1 per group Ages 4 - 11 1 to 2 hours
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In this activity, learners investigate convection by using food coloring and water of different temperatures.

1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners will make a model rocket to test the phrase "what goes up must come down." Learners will power their rockets with air pressure, and soon discover the effects of air resistan

$1 - $5 per student Ages 4 - 8
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This activity (located on page 8 of the PDF) introduces learners to the concept of Non-point Source Pollution--what happens when rain washes garbage and other pollutants into rivers and lakes.

$5 - $10 per group Ages 6 - 11 5 to 10 minutes
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In this activity, learners explore how light and dark colored objects absorb the Sun's radiations at different rates.

$1 - $5 per group Ages 6 - 14 2 to 4 hours
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In this activity, learners explore the Great Plains.

$1 - $5 per group Ages 4 - 11 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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In this activity, learners will turn an ordinary tray of sand into a desk-top garden for meditation.

$1 - $5 per student Ages 4 - 14 30 to 45 minutes