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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 create paint out of natural materials. Explore your natural world (or your fridge) and find berries, leaves, or flowers to find a great base for your paint.

$1 - $5 per student Ages 4 - adult 5 to 10 minutes
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In this activity, learners discover how bats use echolocation to get information about objects in their environment. During the activity, one learner whispers into a tube.

$1 - $5 per group Ages 4 - 6 10 to 30 minutes
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In this arts and crafts activity about animals and animal characteristics, learners will design animal hats and role-play as animals.

$5 - $10 per group Ages 4 - 6 10 to 30 minutes
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In this activity, learners create their own bird species using arts and crafts materials. The bird call recordings are not online so the introduction activity can't be done, but everything else can.

1 cent - $1 per group Ages 4 - 11 30 to 45 minutes
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In this activity about dinosaurs, learners first participate in a group discussion about where and when dinosaurs lived, how big they were, and who studies them and how.

$1 - $5 per group Ages 4 - 6 10 to 30 minutes
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In this creative activity, learners will practice looking carefully to observe details and to become familiar with dioramas as a method for displaying naturalistic scenes.

free Ages 4 - 14 30 to 45 minutes
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In this outdoor activity, learners become beachcombers as they walk on a sandy beach in search of evidence of life.

$1 - $5 per group Ages 4 - 14 45 to 60 minutes
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In this activity, learners will build a honeycomb. Learners will investigate how the shape of the honeycomb develops. Activity includes step-by-step instructions and extension ideas.

1 cent - $1 per student Ages 4 - adult 10 to 30 minutes
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In this activity about dinosaurs and survival, learners use scrap materials to create a miniature dinosaur habitat that includes a food source, water source, and shelter.

$1 - $5 per group Ages 4 - 6 10 to 30 minutes
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In this activity, learners compare the ways of life of Plains Native Americans who hunted and moved frequently to follow the buffalo herds, and Native Americans who farmed and lived in more permanent

$10 - $20 per group Ages 4 - 11 30 to 45 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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This activity (on page 3 of the PDF) has learners create models of butterfly wings.

1 cent - $1 per student Ages 4 - 6 10 to 30 minutes
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In this activity, learners will build a design and build a place for pollinators to drink from.

$1 - $5 per student Ages 4 - adult 1 to 7 days
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In this activity, learners explore the concept of permeability to better understand why amphibians are extremely sensitive to pollution.

1 cent - $1 per group Ages 4 - 14 4 to 24 hours
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In this activity, learners interact with a 3-D model of a watershed to better understand the interconnectedness of terrestrial and aquatic environments.

Over $20 per group Ages 4 - adult 5 to 10 minutes
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In this investigation, learners plant seeds in a 2-liter bottle filled with soil that is connected to a water source below. Over the next few weeks, learners observe how the plants grow.

$1 - $5 per student Ages 4 - 14 1 to 4 weeks
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In this activities, learners head outside and investigate trees through bark rubbings. Learners will need paper, a pencil, and some unwrapped crayons to create them.

1 cent - $1 per student Ages 4 - 14 5 to 10 minutes
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In this activity, learners are invited to imagine the park of their dreams!

$1 - $5 per group Ages 4 - 11 45 to 60 minutes
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Using a real-size sketch of a baby elephant's footprint, learners estimate, measure and record the width (diameter) and outside edge length (perimeter or circumference) of the footprint.

1 cent - $1 per group Ages 4 - 11 30 to 45 minutes