This California State University Northridge essay on the "Nature of Science, the Scientific Method, and Measurement" includes a historical perspective.

Students examine paleontology, the study of ancient life on Earth. Some topics explored are vertebrates, invertebrates, and plants.

Online exhibit of scientific illustrations from rare books of natural history. Earliest examples date from the fifteenth century.

A good explanation of basic quantum theory.

Find a wealth of scientific information on the status of biodiversity in the world today, the threats it faces, and why it is critically important to preserve it.

Gain a perspective on the origins of the contemporary environmental crisis, where an awareness of the environment came into being.

Presents a list of the fifteen worst natural disasters to strike the United States and its territories, along with descriptions, year, number of casualties, cost, and where each occurred.

Presents a list of the nineteen worst natural disasters to strike Japan, along with descriptions, year, number of casualties, and where each occurred. Japan has been hit by earthquakes, tsunamis, volcanic eruptions, typhoons, blizzards,...

Discover why some people feel that natural history museums are more import now than they have ever been. Familiarize yourself with some of the challenges these museums are facing.

This guide focuses on everyday substances and how we can change their properties by adding heat or cold, physically manipulating them, or mixing them together.

This BBC "hot topic" contains a description of the types of computer viruses. It also provides different ways to prevent or eliminate computer viruses.

This resource presents extensive information for learning about and teaching evolution including an in depth course "Evolution 101", teaching materials, and a resource library.

Information about Leonardo da Vinci's observations of the natural world. An insightful commentary on the scientific achievements of the Renaissance.

Organ Pipe Cactus National Monument in the Sonoran Desert, in Arizona, was declared a national monument to preserve the ecological wonders it houses. Peruse the history, culture, nature and science. Teachers, be sure to check out the...

A biography of Dr. Charles Liu, an astrophysicist at the American Museum of Natural History focused on his drive to become an astrophysicist.

A review of meteorites, what they are, what types there are, and a collection of reading resources to understand more about these objects falling from the sky.

Built by the Sinagua nearly 1000 years ago, this incredible structure stands tucked into the limestone cliff in the Verde Valley of Arizona. Be sure to look at the history, culture, photos, nature and science provided as well as the...

For over 10,000 years folks have been drawn to the Guadalupe Mountains in western Texas originally for its beauty, resources, and in more recent years its history. One of the most fascinating features to this national park is that in the...

For over 10,000 years folks have been drawn to the Guadalupe Mountains in western Texas originally for its beauty, resources, and in more recent years its history. One of the most fascinating features to this national park is that in the...

Humphry Davy was a pioneer in the field of electrochemistry who used electrolysis to isolate many elements from the compounds in which they occur naturally. Electrolysis is the process by which an electrolyte is altered or decomposed via...

From ABC News in Science, Jennifer Viegas's article covers results from a recent study in which a female bonnethead shark was able to reproduce without the presence of a male shark.

This site from Fordham University is an exerpt from Newton's famous "Principia."

Through this resource, one can briefly explore the georgraphy and history, meet the wildlife, and understand the current threats to Bristol Bay, Alaska.

A brief biography of American astronomer and science advocate Carl Sagan.