Teacher Created Materials

The first prosthetic devices consisted of wooden legs and hooks for hands. Today, many prostheses and bionics can do everything a natural limb can do--and...

Streams are an important part of our world. They are the source of drinking water for countless plants and animals. But many streams are eroding. In...

The Horten Ho 229 was an experimental German airplane created by the Nazis. They believed its innovative design would help them win the war. Although this...

Streams are an important part of our world. They are the source of drinking water for countless plants and animals. But many streams are eroding. In Maryland, there is...

Riding bikes can be a lot of fun, but it is even more fun when it is safe. Read about how people have made cycling safe over the years. There is a lot to learn...

There are many bird species that are endangered and need our help. Bird keepers decide which species they can help the most. Spend a day in the life of a...

The Arctic ecosystem is changing. The temperature is getting warmer, and the polar ice is melting. Polar scientists from around the world study the Arctic...

History is everywhere you look. But what happens when natural disasters threaten important artifacts? Learn about the methods that conservators use to...

People at Smithsonian's National Zoo and Conservation Biology Institute are working hard to save animal species from extinction. Meet five animals they have...

History is everywhere you look. But what happens when there is a disaster, such as a flood or an earthquake? People called conservators visit places hit by disasters...

Migration has huge benefits for birds, but the benefits of migration come at a cost. Learn how ornithologists are using modern technology to help these...

The Arctic ecosystem is changing. The temperature is getting warmer, and the polar ice is melting. Polar scientists from around the world study the Arctic...