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Grades 9-12

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Young Naturalist Awards Essay

The Growth Patterns of Aspens

Is an aspen's diameter affected by its distance from the center of the grove? The search for the answer to this question sent this 8th-grader from Colorado on a two-year-plus expedition.

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Young Naturalist Awards Essay

Morphologic Variation in the Common Periwinkle

The common periwinkle, now one of the most abundant marine gastropods on the North Atlantic coast, was introduced accidentally to Nova Scotia around 1857. Investigate it with an 11th-grader from Maine.

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Young Naturalist Awards Essay

The Mysterious Peregrine Falcon

On a hiking trip, this 12th-grader from New Brunswick spied a peregrine falcon. A second trip brought the discovery of another falcon—a rare breeding pair. But then the mystery began ...

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Young Naturalist Awards Essay

Life in a Vernal Pool

Come exploring with this 9th-grader from Texas as she watches a thriving vernal pool habitat rise up from an area of dried-up muddy earth—and then disappear once again.

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Activity

Exploring Density

Why do some materials sink to the core of a planet while others float to the crust? This experiment uses marshmallow fluff and molasses to illustrate the concept of planet differentiation.

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Classroom Activity

Make Your Own Sifting Screen

Archaeologists can’t just dig into a site like it’s a sandbox—they’d scramble the evidence and more than likely destroy precious artifacts. Try your hand at the careful sifting they employ.

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Classroom Activity

Shoebox Archaeology

How does one generation stack up to the next? Find out why it’s easier for archaeologists to answer this question when a family settles in one place.

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