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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 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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In this activity, learners map their world by drawing a plan of their bedroom.

free Ages 8 - 14 30 to 45 minutes
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In this activity, learners use raisins and seltzer water to understand why waves don’t move objects forward. Learners conduct two simple experiments to understand the circular movement of waves.

1 cent - $1 per student Ages 8 - 11 10 to 30 minutes
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In this water activity, learners test which objects float and which sink. Learners discover that objects behave differently in water.

$5 - $10 per group Ages 4 - 6 30 to 45 minutes
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In this activity, learners create their own archaeological profiles.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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In this math activity, based on the research of famed astronomer Frank Drake, learners calculate the possibilities of finding intelligent life elsewhere in the universe besides Earth.

1 cent - $1 per group Ages 11 - adult 45 to 60 minutes
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In this activity related to dinosaurs, learners explore why animals live in families. Learners discuss and identify animals living in families or groups from images and photos.

$1 - $5 per group Ages 4 - 6 45 to 60 minutes
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In this activity (located at the top of the page), learners make an easy river strainer and see what they can catch.

$1 - $5 per student Ages 4 - 11 1 to 2 hours
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Use this model to demonstrate the goal of NASA's Kepler Mission: to find extrasolar planets through the transit method.

Over $20 per group Ages 11 - 18 10 to 30 minutes
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In this activity, learners will measure the length of a shadow and use the distance from the equator to calculate the circumference of the earth.

1 cent - $1 per group Ages 8 - 18 10 to 30 minutes
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In this activity about problem-solving, learners build a house for the Three Little Pigs using twenty straws and two index cards.

$1 - $5 per student Ages 8 - 11 10 to 30 minutes
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In this activity on page 27, learners perform an experiment to learn about how different types of marine debris degrade and how weather and sunlight affect the rate of degradation.

$1 - $5 per group Ages 8 - 14 1 to 12 months
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In this lesson plan, learners examine some of the of greenhouse gas emissions sources in their community.

free Ages 11 - 14 45 to 60 minutes
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In this activity, learners test how cornstarch and glitter in water move when disturbed. Learners compare their observations with videos of Jupiter's and Earth's storm movements.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this activity, learners use a simple 3D model to discover why the Moon has phases.

$5 - $10 per group Ages 6 - adult 10 to 30 minutes
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In this activity, learners model ancient lunar impacts using water balloons.

Over $20 per group Ages 8 - 14 10 to 30 minutes
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In this activity, which requires adult supervision, learners get to explore the awesome power of chemistry.

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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In this activity, learners explore the size and scale of dinosaurs. Learners listen to "The Littlest Dinosaurs" by Bernard Most. Then, learners estimate the size of a Triceratops and T.

1 cent - $1 per group Ages 4 - 6 45 to 60 minutes