How did tropical fish end up in Montana's Trudau Lake? And do they go dormant to survive the winter? This eighth-grader's winning essay investigates and answers these questions and more.

Cloning was once considered scientifically impossible. And then came Dolly, the sheep that made headlines around the world. Tour the science of cloning with this 11th-grader from New Jersey.

In the early 1900s, some astronomers believed that the color contrasts on Mars' surface were great oceans. Today we know they are huge dust storms. Track how our knowledge of Mars has changed with this seventh-grader.

Wolves have long been the favorite animal of this eighth-grader from Illinois. Learn how she turned her interest into an insightful experiment about how wolves calm and comfort each other.

Are the tomatoes, cheese, and carrots on your table genetically engineered? And if so, why should you care? Wander the aisles of this engaging exhibit, imagined by a 10th-grader from Rhode Island.

Fiddler crabs never stray far from their burrow. That's why they will do anything to avoid getting caught and measured, as this ninth-grader from Virginia found out.

This seventh-grader from Mississippi asked, when it comes to planting a garden, isn't dirt just dirt? Find out what she learned by digging into the study of decomposition and making compost.

The work of Gregor Mendel—today known as the "Father of Genetics"—was disregarded by his fellow scientists. Learn how it was rediscovered decades later in this winning essay by a California teen.

For most animals that forage in the southwestern U.S., Indian ricegrass is their number one food choice. This 12th-grader from Arizona asks, what's the best way to monitor it and prevent overgrazing?

When this ninth-grader from New York uncovered fossils in the state's Finger Lakes region, it was the first time they'd seen light in 400 million years. Learn what information they yielded after all those years.

As you wander through this exhibit by a Wisconsin 11th-grader, you'll be introduced to the Human Genome Project, the scientific benefits it will bring, and the bioethical issues this research raises.