Alaska has the most volcanoes out of all the US states, but researchers think they don't have enough. Here's the weird science behind looking for Alaska's volcanoes, and what we've learned about volcanism along the way.

For the next half of this series, we will be discussing Human Geography — so we’ll still be looking at the Earth, but specifically, how human activity affects and is influenced by the Earth. Naturally, we thought the best place to start...

Howcast - Learn how to say "where is the bathroom" in Mandarin Chinese in this online language lesson from Howcast.

Three great places to view wildflowers in the USA. This pretty footage will put a smile on your face!

Landforms are natural features on Earth's surface. They come in all shapes and sizes. In this video, learn about the different landforms found in the United States.

Discover how sled dogs are essential to exploring the vast, protected wilderness of Denali National Park.

Discover how sled dogs are essential to exploring the vast, protected wilderness of Denali National Park.

This program describes the major topographical features of Earth including mountains, plains, and plateaus. Footage from throughout North America takes students to the Rocky Mountains, the plains of Iowa, and the Colorado Plateau to...