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Some aquatic organisms live in open water, while some live in soil at the bottom of a body of water.

$1 - $5 per group Ages 6 - adult 30 to 45 minutes
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In this outdoor activity, learners investigate the relationship between the slope of a trail and soil erosion.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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In this outdoor activity, learners search for lichen, a combination of a fungus and an alga living together. Lichen grow where most other plants cannot, on rocks, the trunks of trees, logs and sand.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this outdoor beach activity, learners use a variety of "beaks" (such as trowels, spoons or sticks) to hunt for organisms that shore birds might eat.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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In this collecting/comparing activity, learners work with samples of sand from different places like a lakefront, river, or ocean beach.

$1 - $5 per group Ages 4 - 14 30 to 45 minutes
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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 will make their own prism and use a glass of water to separate sunlight into different colors.

$1 - $5 per group Ages 8 - adult 5 to 10 minutes
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This warm weather activity introduces learners to the impact trees have on blocking the sun's heat and reducing temperature on the Earth's surface.

1 cent - $1 per student Ages 4 - 14 2 to 4 hours
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In this outdoor activity/field trip, learners investigate organisms that live along the ocean's rocky coast.

$10 - $20 per group Ages 8 - adult 1 to 12 months
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This activity gets learners looking at 6-sided shapes in nature, including the cells of a beehive, as well as other shapes.

1 cent - $1 per group Ages 4 - 14 1 to 7 days
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In this outdoor activity and observation game, learners hunt for a variety of textures, colors, odors and evidence of organisms in the activity site.

$5 - $10 per group Ages 4 - adult 30 to 45 minutes
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In this craft activity, learners create a string of cut-out moons and stars.

1 cent - $1 per student Ages 4 - adult 30 to 45 minutes
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In this activity, learners use tonic water to detect ultraviolet (UV) light from the Sun and explore the concept of fluorescence.

$1 - $5 per group Ages 6 - adult 5 to 10 minutes
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In this two-part outdoor activity, learners conduct a population census of squirting clams on a beach or mudflat, and investigate the clams' natural history.

$5 - $10 per group Ages 8 - adult 1 to 2 hours
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In this outdoor, beach activity, learners use tennis balls, water balloons and other simple devices to investigate the movement of waves and currents off a sandy beach.

Over $20 per group Ages 8 - adult 1 to 2 hours
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In this outdoor, ocean-side activity, learners investigate the distribution of organisms in the upper region of the intertidal zone.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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In this outdoor activity, learners visit the intertidal zone of a rocky coastal site well populated with marine organisms.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners construct models of plants that are adapted to living under specific environmental conditions.

$10 - $20 per group Ages 6 - 14 45 to 60 minutes
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In this outdoor activity, learners simulate an oil spill using popcorn (both oil and popcorn float on water), and estimate the spill's impact on the environment.

$10 - $20 per group Ages 8 - 14 45 to 60 minutes
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In this set of outdoor games, learners increase their awareness of the outdoor environment by going on a scavenger hunt and an out-of-place hunt.

$5 - $10 per group Ages 4 - 11 1 to 2 hours