Time to rock and roll! Young scientists test their knowledge about rocks found on Earth and what they tell scientists. A 10-question quiz focuses on the different types of rocks, how they are formed, and what they are made of.

This interactive resource adapted from the National Park Service illustrates the variety of landforms and features created by volcanoes. Featured are calderas, craters, fumaroles and other geothermal features, igneous rocks, lava flows,...

This site offers a wealth of online textbook-related materials that encourage the discovery of science in the world around us. Enter the site to access material on specific topics. Each section contains reading material (complete with...