How does gold form and what does it take to extract it from the earth? You'll find everything from colorful field guides to tales about the quest for gold in this list of kid-friendly titles.
The effluent lake in Fountain Hills makes for a spectacular fountain—one that can erupt up to 560 feet. But what quality of lake is created with the use of recycled wastewater?
One of the benefits of living in California, according to this 9th-grader, is inhabiting a environment that provides a critical link between humans and the Pacific Ocean.
This 10th-grader from New York first became fascinated with bats when she observed their "magical movements" in Israel's Negev Desert as a young child. Trek with her to Ontario to study their behavioral ecology.
Search a database with more than 8,300 reptile species. Learn about amphibian biology and conservation. Review the evolutionary history of squamates. And find hands-on science activities.
Explore the McLaughlin gold mine in Northern California. See the first metal coins, which were created in the Middle East around 600 BC. And investigate the properties of gold.
Put your viewing skills to the test—and explore the Museum's Frozen Tissue Collection—with this mystery photo challenge.
Can you tell the difference between a leech's jaw and its back sucker? Test your knowledge of these blood-thirsty worms.
For billions of years the greenhouse effect has made life possible on Earth. Build a terrarium—your own miniature greenhouse—to see this process at work.
Can you tell the difference between an Emmy award and an Olympic medal? Test your knowledge of gold-plated objects. Then find out more about gold!