[Free Registration/Login may be required to access all resource tools.] Understand what trophic levels are and identify producers and consumers in a food web.

This unit on matter cycling and photosynthesis has students investigating the idea that all food comes from plants.

Create the parameters of your own ecosystem by choosing which producers and consumers live there. Visualize how the food web operates and species populations change. This simulator mimics the food web within a typical ecosystem and gives...

A suite of lessons focusing on the process of upwelling. Inquiry-based exploration of seasonal upwelling includes marine food webs, food production in the ocean, wind-driven ocean currents, and seasonal changes in biotic and abiotic...

[Free Registration/Login may be required to access all resource tools.] Describes how energy is transferred from one organism to another.

Students learn about Abiotic and Biotic Factors and how they affect the ecosystem in which an animal might live in.

Investigate the interdependence of wildlife in the Yellowstone ecosystem and draw an ecosystem showing the interdependence of life forms.

Students will understand and describe food chains and food webs, and explain how energy is transferred between their trophic levels.

[Free Registration/Login Required] To show the dependence of animals on the plant world, these flipchart pages contain examples of food chains and food webs, as well as other information about animals and habitats.

Describes five different types of decomposers that feed on decaying organic matter in the oceans and that are at the bottom of the ocean food chain.

Biological magnification is the term used to described the increasing accumulation of substances in organisms as one looks at higher trophic levels in a food chain. When that substance is a toxin, such as a heavy metal or a pesticide,...

This colorful site examines the food chain and delves into an explanation of what producers are and where they fit in an overall ecosystem.

[Free Registration/Login Required] A 2nd grade unit on animal environments and habitats. Include web links for information on different land and water habitats, as well as a lesson on food chains.

[Free Registration/Login may be required to access all resource tools.] About 10,000 bird species belong to 29 different orders within the class Aves. The diversity among birds is striking. Birds can vary greatly in size and color. Some...

Learn about ecosystems, how they work, codependency, and food chains.

[Free Registration/Login may be required to access all resource tools.] Producers make their own food through photosynthesis. But many organisms are not producers and cannot make their own food, but must get their energy from other...

This lesson will review the difference between autotrophs and heterotrophs, and show how both play important roles in a food web. It is 2 of 4 in the series titled "Autotrophs vs. Heterotrophs."

Learn about the mysterious jellyfish blooms that have occurred in the world's oceans. Because the resulting alteration to the marine food web has had devastating effects, researchers grow and study jellyfish at the Monterey aquarium....

Describe the habitat, food web and ecosystem of shark species. Identify threats to sharks and explore how top predators help to maintain the balance of nature within ecosystems. This lesson plan also contains an interactive game.

Explore the different ecological roles of organisms in the ecosystem, and find out how the energy flows through them.

Students explore the biosphere's environments and ecosystems, learning along the way about the plants, animals, resources and natural cycles of our planet. Over the course of lessons 2-6, students use their growing understanding of...

An ecosystem is composed of biotic factors of a community of living organisms interacting with one another which we can see in food chains/webs. These diverse organisms stay together because of the need of food. Population is referred to...

Students and teachers can explore the work of marine scientists and observe the ocean from their computers. Learn about Rutgers Coastal Ocean Observation Laboratory, discover why oceanography is important, and see what life is like in...

Students learn about aquatic life and the importance of a balanced aquatic habitat by collecting micro- and macro-organisms. By the end of the lesson, they will be able to identify and develop a pond food web.