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Investigate a flower's power of marketing by making an imitation flower that successfully signals a bee (or other pollinator of your choice) to visit.

1 cent - $1 per student Ages 4 - 11 5 to 10 minutes
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In this activity, learners will simulate the interactions between a predator population of gray wolves and a prey population of deer in a forest.

1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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Discover the wind's direction using bubbles, a map and a keen eye. Learners blow bubbles and note their general direction on a map, taking readings from different points around a building.

1 cent - $1 per student Ages 6 - 11 30 to 45 minutes
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This activity (on pages 35-43) lets learners analyze a "herd of elk" to detect the spread of a bacterial disease called brucellosis.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners working in pairs saturate a cotton ball using water drops from an eyedropper to demonstrate the high water capacity of clouds.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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This great "re-use it" activity will demonstrate how to transform a greeting card into a box. Once constructed, the box can have many uses like holding special notes or keepsakes.

1 cent - $1 per student Ages 6 - 14 5 to 10 minutes
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In this activity, learners investigate how wind can create surface currents and how waves move. Learners also discover how wind can affect oil spills.

1 cent - $1 per group Ages 8 - 11 45 to 60 minutes
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In this activity, learners discover that as the salinity of water increases, the density increases as well. Learners prove this by attempting to float fresh eggs in saltwater and freshwater.

1 cent - $1 per group Ages 6 - 14 5 to 10 minutes
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In this family or group inquiry activity, learners use their senses to explore a local forest or woodland.

1 cent - $1 per group Ages 6 - 11 1 to 2 hours
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In this activity, learners experiment and observe how the color of materials that cover the Earth affects the amounts of sunlight our planet absorbs.

1 cent - $1 per group Ages 8 - 18 30 to 45 minutes
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In this hands-on botany activity, learners sprout vegetables in film canisters.

1 cent - $1 per student Ages 4 - 11 1 to 4 weeks
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Millions of organisms can live in and around a body of water.

1 cent - $1 per student Ages 8 - adult 45 to 60 minutes
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In this activity, learners pretend that they are orcas and search for their "pods" using Morse code.

1 cent - $1 per student Ages 8 - 11 45 to 60 minutes
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In this activity, learners explore how salt water freezes in comparison to fresh water.

1 cent - $1 per group Ages 6 - 14 1 to 2 hours
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In this activity, learners discover if carbon dioxide has an effect on temperature.

1 cent - $1 per group Ages 6 - 14 1 to 2 hours
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In this creativity-based activity, learners imagine what the Earth will look like in the near and distant future, then design their own future habitat and creatures that may live there.

1 cent - $1 per student Ages 6 - 14 30 to 45 minutes
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In this activity, learners investigate feeding relationships. Learners complete a food web and then make a mobile to represent a food chain.

1 cent - $1 per student Ages 6 - 14 45 to 60 minutes
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In this math lesson, learners practice reading charts and graphs by creating and interpreting glyphs.

1 cent - $1 per student Ages 8 - 11 45 to 60 minutes
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In this activity, learners will engineer a new shape and use it to create a new pattern with no wasted space.

1 cent - $1 per student Ages 4 - 14 10 to 30 minutes
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In this indoor and/or outdoor activity, learners make an anemometer (an instrument to measure wind speed) out of a protractor, a ping pong ball and a length of thread or fishing line.

1 cent - $1 per student Ages 8 - 14 10 to 30 minutes