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The Carbon Cycle: How It Works
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In this game, learners walk through an imaginary Carbon Cycle and explore the ways in which carbon is stored in reservoirs and the processes that transport the carbon atom from one location to another

OBIS Oil Spill
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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.
Caterpillar Measure
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In this activity, young learners use different-sized paper 'caterpillars' and various household items to predict and measure their height.

Inner Strength
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In this activity about endoskeletons (page 8 of PDF), learners observe, compare and contrast different kinds of chicken bones, and relate their chicken bone observations to human bones.

Sound Mixer: A Multi-track Mixer of Animal Sounds
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This is a virtual representation of a sound mixer containing pre-looped sounds of animal, insect, and environmental noises.

Elephant Foot
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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.

Food Webs
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In this activity, learners construct possible food webs for six different ecosystems as they learn about the roles of different kinds of living organisms.

Engineer A Bird Feeder
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In this activity, learners of all ages will design a functional bird feeder using familiar, every day materials.

Classroom Dinosaur Dig
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In this activity, learners participate in a simulated dig to discover fossilized dinosaur bones. Learners take notes, make a map and propose theories about dinosaurs.

How Animals Stay Warm
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In this quick activity, learners explore how blubber protects animals from the cold by making a "blubber mitt." Using cooking shortening, two zip-top sandwich bags, and duct tape, learners simulate bl

Monster Evolution
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In this online activity, learners create monsters and see how they survived when released into the wild.

Echolocation in Action!
In this activity, learners simulate whale echolocation. Learners experience echolocation by wearing blindfolds, while another learner makes snapping noises in front of, behind, or to the side of them.

Beach Finds Curiosity Cart
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In this activity, learners observe hard parts of sea creatures (shells, molts, etc.) to better understand marine environments.

Butterfly Life Cycle Optical Illusion
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This activity is a fun way to show two stages in a Monarch butterfly's life cycle. Learners will create an optical illusion that can be flipped from caterpillar to butterfly.

Gene Switches
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In this activity, learners explore how genetic switches function and the role of genetic switches in the process of evolution.

Gaming in the Outdoors
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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.

Shoebox Dinosaur Dig Site
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In this activity, (on page 6 of the PDF under SciGirls Activity: Dinosaurs) learners participate in a hands-on fossil excavation.

Free-living and Plant-Parasitic Nematodes (Roundworms)
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This lesson introduces learners to the world of nematodes (roundworms).

Bird Feeder Challenge
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In this activity, learners are challenged to build a bird feeder using recycled materials from home and are encouraged to problem solve during the extensions.

It's All About Birds
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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.