I Was Wondering
This interactive website begins with a young woman named Lia talking about her favorite female scientists. It's highly engaging and designed to get young women excited about entering scientific professions.

Windows to the Universe: Biomes and Ecosystems
Maintained by the National Earth Science Teachers Association. Visitors can use the interactive map to explore various biomes, and learn about the natural history and current conditions in the dry steppes, alpine tundra, and a dozen other biomes. Each section contains photographs and a narrative essay that describes in summary detail the key features of each biome.

NOVA: Explore Teacher's Guides
Designed by NOVA's scienceNOW group, it offers a wide range of teacher's guides designed to be used in conjunction with the scienceNOW programs. The guides are divided into thirteen topical areas, including "Mathematics", "Physics" and "Space Science." The activities within each area are designed to be used before and after viewing the scienceNOW programs, and they include activities around primate evolution and mass extinctions.

The Wisconsin Program for Scientific Teaching Digital Library
Designed to "enhance undergraduate biology education by training a new generation of 'scientific teachers." Users will find twenty different units designed to get young people excited about science. Visitors can scroll through the offerings here, including  "Microbial Ecology, Evolution, and Symbiosis". Each unit includes a teacher's guide.

Science 360
Here visitors can watch videos and learn about the molecular structure of water and the science behind blowing glass. There are about fifteen videos on the site, and visitors can sign up via a host of social media to stay abreast of new additions to the site.

National Lab Day
A great opportunity for educators and professionals to show young girls how exciting science and math can be and provide them with female role models in critical career fields. The network partners teachers with outside experts to assess current labs, update or refurbish lab equipment, conduct equipment and materials inventory, or clean and repair equipment.

National Geographic: Redwoods
Offers a multimedia presentation about the majestic Redwood forest. There is a video of a photographer's attempt to create a composite photo of an entire redwood tree. The "Living Giants" interactive time line shows the historical moments a 2000-year-old redwood has lived through, including the reign of Genghis Khan, the signing of the Magna Carta, and the settlement at Jamestown.

We Choose the Moon
Visitors can make their way through the eleven stages of the Apollo 11 mission, complete with audio transmissions from the flight, image galleries, additional video clips, and some realistic visualizations of the craft in flight. Visitors can move through the stages as they see fit, and they can also change the size of the display and toggle the sound on and off.

The Art Institute of Chicago
Includes several different scientific disciplines relating to art, including "Art and Astronomy" and "Perception, Light, and Color." Links to lesson plans and student projects are also available.

Intelligent Designs on Evolution
The documentary takes a look at some of the people involved in the debates and features interviews with high school teachers, intelligent design theorists, and others.

NASA: Satellite Tracking
Visitors can use several of the online tracking applications offered here to locate hundreds of satellites and other such large objects in space. The live Java Tracking Display allows visitors to monitor close to 700 satellites that are in motion around the earth.

Forensics in the Classroom
Developed in partnership with the American Academy of Forensic Sciences, Court TV, and the National Science Teachers Association. You can download standards based curriculum supplements in chemistry, biology and physics that involve students in forensic mysteries and puzzles.

Backyard Nature 
Provides extensive sections for backyard Ecology, Plants, Animals, and Fungi -- to name just a few. The site contains a section on naming and classifying living things and information about tools for backyard naturalists.

A tool to help teachers who do not have the time to develop rubrics from scratch; provides generic rubrics that can simply be printed and used for many typical projects and research assignments.

Ask Eric 
2000+ lesson plans which have been written and submitted to AskERIC by teachers from all over the United States and the world.

The Climate Timeline Information Tool
Describes weather and climate events that occur on different timescales.

The Paleomap Project
Images and animations of continental positions at different times in Earth's history.

The Museum of Paleontology at the University of California Berkeley
Jay Dykes has created this delightful tribute to his own small garden, with an emphasis on its insect life. Photographs all feature a magnifying glass, which allows visitors to examine the intricate features of these small creatures.

Lewis and Clark as Naturalists
Allows visitors to travel with Lewis and Clark as they moved across the Great Plains and into the Pacific Northwest, examining the plants and animals they encountered. Regrettably, very few of the actual specimens collected by the explorers are intact, so the Smithsonian has drawn on its own massive collections to stand in as surrogates for the original specimens. Visitors can browse the collection by species, state in which each specimen was collected, or by date each specimen was collected. Each specimen contains information about where it was found and comments from the explorers about each specimen. There are a number of lesson plans designed to be used in conjunction with the Web site.

Jason Project 
Join a scientific expedition team investigating California's Channel Islands, a unique region known as the Galapagos of North America. Web surfers can swim below the kelp forest canopy and track 100 years of ocean exploration.

The APSnet Education Center
Presents information on plant health and plant diseases; includes peer reviewed publications. There is material for introductory and advanced plant pathology (including disease lessons, labs, topics, and an illustrated glossary). There is also a K to 12 section designed for teachers that labs and classroom activities (background information, lesson plans, class handouts), resource catalog, and a bulletin board for questions and discussions.

The Secret Life of the Brain
Online companion to a five part series about the human brain from PBS.

Butterfly Lab
Designed for students in grades 7 to 12, Butterfly Lab offers online activities and materials covering butterfly anatomy, life cycle, behavior, and related topics. Detailed information is accompanied by colorful diagrams and photographs.

A project of the University of Illinois's Beckman Institute for Advanced Science and Technology, enables students around the country to capture insect specimens, send them to the university, and, through the Internet, view them under an environmental scanning electron microscope (ESEM).

NOVA: Lord of the Ants
Offers a broad and engaging portrait of E.O. Wilson whose intellectual curiosity and holistic approach to examining the world continues to inspire others. Visitors can read excerpts from his autobiography, play an interactive matching game with ants, and read a transcript of an interview with Wilson about the concept of "biophilia" or humans' innate tendency to focus on living things, as opposed to the inanimate.