Every living creature can leave a fossil record, yet most fossils belong to extinct organisms rather than ones currently living. Scholars learn about dating rock layers, fossils, and the environment of the past. Pupils understand that...

The U.S. produced enough wind energy in 2015 to power all of the homes in Alaska, California, Delaware, the District of Columbia, Hawaii, Idaho, Maine, Montana, Nebraska, New Hampshire, North Dakota, Rhode Island, South Dakota, and...

Twelfth graders create an artistic version of a Vetruvian teen. For this anatomy lesson, 12th graders design an experiment to test the theory of the ideally proportioned man. They present their findings in class.

Eighth graders are introduced to the concept of conservation. As a class, they brainstorm ways in which they can or already have helped the environment. Using the internet, they research key individuals and organizations that help the...

Bridge the gaps in your knowledge of bridges. Individuals learn about bridge types by building models. The activity introduces beam bridges, arch bridges, truss bridges, and suspension bridges.

Learners, working in small groups construct scale models of the planets and solar system. They examine images of Mars and discuss what might have caused the features. They record facts about their planetary research in their journals and...