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Sound Charades
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In this game, learners create flash cards with an image on one side (of an animal, for example) and the sound that animal makes on the other.

Hold a Hill
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In this outdoor activity, learners investigate the relationship between the slope of a trail and soil erosion.

Lichen Looking
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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.

African Arts
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In this two-day activity (on pages 16-22), learners use a process like that of the Yoruba people of Nigeria to create an African symbol on cloth.

Rumination
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In this activity (on pages 24-34), learners explore the four-part stomach of cows (and other grazing animals called ruminants), and compare it to the human one-part stomach and its digestive process.

Decomposition Column
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In this activity, learners turn empty 2-liter bottles into a see-through compost container.

Does Sunscreen Protect My DNA?
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In this laboratory experiment, learners explore how effectively different sunscreens protect yeast cells from damage caused by ultraviolet (UV) radiation.

Flower Powder
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In this outdoor activity, learners use artificial bees and paper models of flowers to find out how bees transfer pollen from one flower to another.

Biodiversity of Feet
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This activity (on page 3 of the PDF under GPS: Biodiversity Activity) is a full inquiry investigation into biodiversity.

Bird Feeder
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In this outdoor activity, learners construct bird feeders and set them up at to investigate bird behavior for one or two weeks. Multiple feeder designs are suggested.

Chicken Wing Exploration
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In this activity, learners explore cooked chicken wings and identify the various parts including: bones (radius, ulna, humerus, shoulder joint, elbow joint), tendons, and cartilage.

TerrAqua Investigation Column: What is the Land-Water Connection?
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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.

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.

Super Soil
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In this outdoor activity, learners make their own organic-rich soil. Depending on where this activity is done, learners will probably discover that their local soil is low in organic matter.

Litter Critters
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In this outdoor activity, learners use a "litter-critter" wheel to help them identify different animals they find living in a natural litter habitat.

Follow the Scent
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In this outdoor, sensory activity, learners role play as animals trying to identify their "family's" scent and locate their "territory." Learners mark their territories and sniff out other territories

Mystery Marauders
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In this outdoor, mystery-solving activity, learners work like detectives, gathering evidence to identify the culprits that are attacking plants.

Kimchee Fermentation Chamber
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Learners make kimchee or sauerkraut, which is really just fermented cabbage, in a 2-liter plastic bottle.

Logs to Soil
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In this outdoor activity, learners cut through and investigate rotten logs and then make log-profile puzzles for each other.

Trail Construction
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In this highly physical outdoor activity, learners construct and compare experimental trail sections to select the best trail-construction technique for their site.