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Showing results 101 to 120 of 391

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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 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 (on the left side of page 5, continued on the right side of page 4 of the PDF), learners make models of colorful butterflies.

1 cent - $1 per student Ages 4 - 6 10 to 30 minutes
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In this activity, learners conduct a series of hands-on experiments that demonstrate how the working of plants' veins, known as capillary action, enables water to travel throughout the length of a pla

$5 - $10 per student Ages 11 - 14 1 to 7 days
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In this activity, learners will experiment with changing flower colors. Learners will investigate the effects of acids and bases on flower colors.

$1 - $5 per group Ages 4 - adult 10 to 30 minutes
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This activity investigates how bark beetles can threaten forests by having learners estimate the number of infected trees from a photo.

$1 - $5 per group Ages 4 - 8 10 to 30 minutes
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In this activity, learners are challenged to design a planktonic organism that will neither float like a cork nor sink like a stone.

$5 - $10 per group Ages 8 - adult 30 to 45 minutes
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In this activity, learners conduct an experiment to explore how water flows up from a tree's roots to its leafy crown.

$1 - $5 per student Ages 6 - 14 1 to 2 hours
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In this activity, learners observe what happens when yeast cells are provided with a source of food (sugar). Red cabbage "juice" will serve as an indicator for the presence of carbon dioxide.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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In this simulation, learners explore how ocean currents spread all kinds of pollution—including oil spills, sewage, pesticides and factory waste—far beyond where the pollution originates.

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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In this engineering/design activity, learners make a kite, fly it, and then work to improve the design. Learners explore how their kite design variations affect flight.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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This is an activity to do when there is a solar eclipse!

1 cent - $1 per group Ages 8 - adult 1 to 2 hours
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In this activity, learners explore the concept of insulation by trying to keep Olaf the Snowman from melting. This activity encourages critical thinking and problem solving.

$5 - $10 per group Ages 4 - adult 2 to 4 hours
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In this sunny day experiment, learners measure and compare how quickly light and dark colored materials absorb heat.

$5 - $10 per group Ages 8 - 14 10 to 30 minutes
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In this activity about daily rhythms (on page 17 of the PDF), learners will explore circadian patterns in humans, animals and plants.

$1 - $5 per group Ages 8 - 14 1 to 7 days
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In this activity, learners will see how UV light affects colors over time by making their own sunprint on construction paper.

1 cent - $1 per student Ages 6 - adult 10 to 30 minutes
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In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.

$5 - $10 per group Ages 8 - 14 1 to 4 weeks
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This activity demonstrates liquefaction, the process by which some soils lose their solidity during an earthquake.

1 cent - $1 per group Ages 8 - 18 10 to 30 minutes