Grades 9-12

Case Study: Fossil Microbes on Mars?

Online Resource, Article

Case Study: Fossil Microbes on Mars?

A meteorite that escaped from Mars 16 million years ago was found recently in Antarctica. Does it, or doesn't it, hold evidence that proves the existence of life on the red planet?

Case Study: Neutrino Observatories

Online Resource, Article

Case Study: Neutrino Observatories

Update your image of astronomers. Today they spend most of their time peering into computer screens rather than through the eyepiece of a telescope. Learn what this new vantage point has gained them.

Case Study: The Cosmic Microwave Background Radiation

Online Resource, Article

Case Study: The Cosmic Microwave Background Radiation

At this distance in time and space, can we prove that the universe was created with a single explosion? See how scientists have detected a faint remnant glow that supports the Big Bang theory.

Profile: Ernst Chladni and Rocks from the Sky

Online Resource, Article

Profile: Ernst Chladni and Rocks from the Sky

Today, we accept the notion that enormous rocks exist within our solar system and that some of them fall to Earth. A little over 200 years ago, though, this idea garnered skepticism and ridicule.

Deformed Frogs: The Big Mystery

Young Naturalist Awards Essay

Deformed Frogs: The Big Mystery

Frogs with a single hind leg were not the most surprising discovery this seventh-grader from New York made. Read what he learned about the nationwide increase in frog deformities.

Growing Up at Espenberg: Eggstatic About Foxes

Young Naturalist Awards Essay

Growing Up at Espenberg: Eggstatic About Foxes

This Alaskan senior wanted more from her summers than being her parents' research assistant. Travel north of the Arctic Circle, and take a close look at her hands-on—and hand-off—research on foxes.

Salmon Creek: A Search for the Missing Salmon

Young Naturalist Awards Essay

Salmon Creek: A Search for the Missing Salmon

One hundred years ago, salmon were so plentiful that children could stack them along the banks like firewood. This seventh-grader wanted to know what happened to all the salmon in Salmon Creek.

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