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In this activity, learners will use simple materials to explore centripetal force and variables by swinging a cup of water without having the water spill out.

free Ages 6 - adult 10 to 30 minutes
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In this activity, learners identify different plastics in a mystery bag. Learners discover that plastics are classified #1 through #7.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this group or individual activity, learners are encouraged to watch birds near home or school—possibly where birds are nesting in a tree, pecking in a park, feeding from a feeder, or flying through

free Ages 6 - 14 1 to 7 days
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In this activity, learners explore how light and dark colored objects absorb the Sun's radiations at different rates.

$1 - $5 per group Ages 6 - 14 2 to 4 hours
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In this activity, leaners will observe the process of natural selection on a population of birds called 'Springbeaks' over four seasons of breeding on an isolated environment called 'Clippy Island.' L

$10 - $20 per group Ages 11 - adult 45 to 60 minutes
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In this activity, learners will turn an ordinary tray of sand into a desk-top garden for meditation.

$1 - $5 per student Ages 4 - 14 30 to 45 minutes
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In this outdoor activity, learners find out the color of food that jays prefer and then try to change the birds' preference by altering the taste of the food with salt.

$10 - $20 per group Ages 8 - 14 45 to 60 minutes
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In this outdoor activity, learners use a mapping technique to become oriented to the major features of an outdoor site.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners discover how landfills affect the natural environment.

free Ages 8 - 18 1 to 4 weeks
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In this activity, learners consider how oil spills behave in the ocean and what impact they have on marine wildlife.

$10 - $20 per group Ages 11 - 14
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This is part 3 of the three-part "Crayon Rock Cycle" activity. Before starting this section, learners must have completed part 1: sedimentary rock and part 2: metamorphic rocks.

$5 - $10 per student Ages 4 - adult 10 to 30 minutes
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In this activity, learners discover which plants and animals have symbiotic relationships and how this impacts each organism.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners make a model of the hot water of a deep sea vent in the cold water of the ocean to learn about one of the ocean's most amazing and bizarre underwater habitats.

1 cent - $1 per group Ages 8 - 14 5 to 10 minutes
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In this activity on page 14 of the PDF (Rethinking the 3 R’s: It’s Easy to be Green), learners turn plain pieces of recycled plastic into shrunken works of art.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners construct a home-made journal with simple, everyday materials.

1 cent - $1 per group Ages 4 - adult 10 to 30 minutes
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Using simple, inexpensive items, learners build and test submarine models.

$10 - $20 per group Ages 11 - 18 45 to 60 minutes
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In this water pollution activity, learners create pond water cultures and investigate the effects of adding chemicals or natural nutrients.

$5 - $10 per group Ages 8 - 14 1 to 7 days
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In this activity, learners build a bird feeder or feeders to attract birds for observation.

$1 - $5 per group Ages 6 - 14 30 to 45 minutes
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In this activity, learners will exercise their imaginations and artistic skills. Appropriate for all ages, learners will create unique pieces to jumpstart storytelling sessions.

$1 - $5 per group Ages 4 - adult 45 to 60 minutes
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This activity offers learners and their families several ways to raise their awareness together about home water.

free Ages 4 - adult 1 to 7 days