In the intertidal zone organisms are exposed to periods of varying moisture, sunlight, and wave forces. Many organisms have specialized structures or behaviors that allow them to live in this constantly changing and often harsh environment.

The material found at this site provides original, multidisciplinary, inquiry-based ideas to help enrich science teaching using the world famous Great Salt Lake as a springboard theme. During the lesson students will have the opportunity to view two types of algae (fresh water and Great Salt Lake species) under 400x magnification with a compound microscope. Students will make observations and record their observations on a recording sheet where they will describe what they see through drawing and words. The students will learn to identify different qualities such as cell structure, movement and other behavioristic qualities of the two different types of algae.

Algae are a collection of a millions of photosynthetic protists. These algae are red because of a special pigment. They cement themselves onto rocks in moist areas.

Worksheet for pupils to complete by visiting an Amazon rainforest website boasting a range of online games and activities about the Ecuadorian Amazon.

In contrast with its largely lifeless interior, the Antarctic coastal marine environment supports a vibrant and diverse ecosystem. Explore the region's living bounty in this interactive activity adapted from the Woods Hole Oceanographic Institution.

Despite seemingly inhospitable conditions, the Arctic environment has a vibrant and diverse ecosystem. Explore the life that thrives in this region in this interactive activity adapted from the Woods Hole Oceanographic Institution.

See the many birds that spend their summer in the Arctic in this video segment from Nature.

The Western landscape which George Catlin encountered on his travels was dominated by the great expanse of the tall and short grass prairies. Home to countless species of plant and animal life, the great prairies once spanned millions of acres across North America. Today less than ten percent of the complex ecosystem remains, largely under the protection of parks and nature preserves. In this lesson students will gain an understanding of the interdependence of living organisms on the prairie and the fragility of their existence by investigating life on the prairie and relating their findings to their own experience.

This site features links to broadcast quality audio files and transcripts from an interview with Dr. Carol Stoker about the Mars Analog Research and Technology Experiment (MARTE) which is to take place near the Rio Tinto in Spain. Interview topics include the MARTE expedition, the definition of an extremophile, the significance of the color and pH of Rio Tinto, equipment for the MARTE experiment, the possibility of a Mars drilling mission, and the resemblance of Rio Tinto geochemistry to that of Mars.

This video segment from the Nevada Department of Wildlife looks at various species of bats and how they impact the environment.

Have you ever wondered what sand is made of? Where does it come from? How can we keep our beaches clean? Let's work together using the internet to find out a little bit more about the beach.

This Nature video segment focuses on the four foods most important to the grizzly bears' survival, and it describes the threats to the supply of each of them.

In this video segment from Nature, learn about the problems bears are creating on ranch land surrounding Yellowstone National Park.

This Nature video segment explores how the relationship between humans and grizzly bears has changed over the course of American History, and it describes the closing of the Yellowstone National Park garbage dumps in the 1970s.

Learn about the precautions humans must take in the face of a growing grizzly bear population in this video from Nature.

This BioBulletin Web site takes an in-depth look at the Asian longhorn beetle. The site includes text, videos, photographs, and interviews with key scientists.

In this interactive activity from Shedd Aquarium, build a fish and then release it into the reef to search for food and evade predators. Try different combinations and observe how each kind of fish has unique adaptations that help it survive in its habitat.

Cacti have many thorns that prick potential predators if touched or eaten.

In this video segment from NatureScene, explore Cartwheel Bay, a wetland in South Carolina, and learn about the variety of carnivorous plants native to this unique landform.