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Showing results 281 to 297 of 297

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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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April showers bring May flowers, but what do coastal storms bring?

$1 - $5 per group Ages 14 - 18 1 to 2 hours
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In this health and fitness activity, learners focus on the importance of daily physical activity, specifically walking.

$1 - $5 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners find out what happens when they cover leaves with pieces of black construction paper. This activity shows learners that plants need sunlight to survive.

$1 - $5 per group Ages 4 - 11 1 to 7 days
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Learners add calcium chloride to a baking soda solution and observe an increase in temperature along with the production of a gas and a white precipitate. These are all signs of a chemical reaction.

$1 - $5 per group Ages 8 - 14 30 to 45 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 hands-on nature activity, learners observe the emergence of leaves and flowers. Branches from trees and bushes are collected in the early spring, brought indoors, and placed in water.

$1 - $5 per group Ages 8 - 14 1 to 12 months
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In this data analysis and environmental science activity, learners examine the effects of pollution on amphipods using data from the Chesapeake Ecotox Research Program.

$1 - $5 per student Ages 14 - 18 45 to 60 minutes
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This is an activity where learners will discover what types and how many insects live in their own backyard.

$1 - $5 per student Ages 4 - 18 30 to 45 minutes
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In this activity, learners explore work, forces, simple machines, and construction. This lesson guide includes simple ways to demonstrate these principles as well as hands-on activities.

$1 - $5 per group Ages 4 - 8 1 to 2 hours
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In this activity, learners explore the relative sizes and distances of objects in the solar system.

$1 - $5 per group Ages 8 - 18 30 to 45 minutes
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Learners mix vinegar and baking soda to produce a gas. With the addition of a bit of liquid soap, the gas becomes trapped in measurable bubbles.

$1 - $5 per group Ages 8 - 14 30 to 45 minutes
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This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset.

$1 - $5 per student Ages 8 - 14 5 to 10 minutes
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In this quick activity about pollutants and groundwater (page 2 of PDF under Water Clean-up Activity), learners build a model well with a toilet paper tube.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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A group of learners simulates the spread of disease by trading slips of paper, one set of which has been treated with a baking soda solution.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this craft activity, learners will recognize, name, and compare the fractions 1/2, 1/4, and 1/8 by constructing a penguin out of portions of paper circles.

$1 - $5 per group Ages 4 - 11 30 to 45 minutes
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In this activity, learners explore sound by constructing a simple piano out of wood and craft sticks.

$1 - $5 per student Ages 6 - 11 30 to 45 minutes