The physical principles behind daredevil rides such as the roller coaster and the free-fall. This site combines an introduction to the basic physics of the rides with some historical notes on the rides themselves.

Great site for elementary grades on the frozen planet at the South Pole. Information is comprehensive, easy to understand and well organized.

An introduction to information on bacteria.

Basic information on the distribution and nature of the world's major biomes. Study hints and critical thinking questions follow the content units.

Well organized site with lots of information on the Earth's biomes and habitats.

Information about the study and inquiry into the form, function, diversity, reproduction, evolution, and uses of plants and their interactions within the biosphere.

An online encyclopedia of plants and botanical dictionary.

Entomological insect database complete with photos and descriptions.

Explore large structures such as bridges, domes, skyscrapers, dams, and tunnels and what it takes to build them.

Comprehensive online hypertext book about butterflies, designed for students of all ages and levels of comprehension.

Information from the CVO, an organization that provides information on volcanoes and other natural hazards including earthquakes, landslides, and debris flows, in the western United States and elsewhere in the world.

Watch videos of exciting chemistry demonstrations, view experiments illustrated with photos and complete with explanations, and browse through a chemical reaction photo gallery.

From the Le Moyne College Department of Chemistry, this site offers classic papers on a wide range of chemistry topics, historical information in the form of a chemistry calendar, a glossary of terms and Internet resources.

This site addresses issues of global warming and world climate news.

Learn about global warming from a paleo perspective.

CODATA Internationally recommended values of the fundamental physical constants.

Fun, practical and realistic activities to encourage the appreciation of science. Designed for students in kindergarten through second or third grade.

These maps present an accurate, objective, and realistic graphical compilation of contemporary global tectonic and volcanic activity, which can serve as a scientific, educational, and research planning tool.

Comprehensive online hypertext book about dinosaurs, designed for students of all ages and levels of comprehension.

Information on the latest earthquakes around the world, current earthquake research, and much more.

Award winning site about animals that provides classification information as well as graphics and audio files.

Information about the greatest engineering achievements of the 20th Century.

Information on natural systems, the environment and ecosystems.

Comprehensive and annotated list of environmental issues.