Packed with visual aids and multiple learning opportunities, an engaging exercise challenges individuals as they explore the role of producers, consumers, and decomposers. After discussing differences between food chains, food...

The circle of life is all around us, from the black bears in the nearby mountains to the pile of dead leaves in the backyard. Encourage young scientists to take a critical look at the world around them with a set of lessons...

Emerging biochemists more fully understand the flow of energy in ecosystems as they explore the laws of thermodynamics and relate them to energy transfer in food chains. They also investigate heat loss from the human body and how...

From tiny organisms to entire biomes, young scientists examine the interdependent relationships tying all living and non-living things together with this collection of ecology resources.

Carbon, the base for all organic compounds, exists in nature in its purest form as graphite or diamonds. The 25th lesson in a series of 36 teaches pupils the nomenclature of organic compounds. Learners read about how to use the IUPAC...

Omnivores, herbivores and carnivores are waiting for you. The food chain comes to life at this friendly site.

Trace the energy transfer through food chains and food webs. Check your understanding by hovering your mouse over questions to reveal the answers.

Explains the characteristics of food chains and food web; the different levels of producers, consumers, and decomposers; and the differences between food chains and food webs. Includes charts and a Venn diagram comparing the two.

Read about the different predators, consumers, and producers that make up an ocean food chain.

Learn how energy is transferred through the food chain.

After reviewing the roles of consumers, producers and decomposers, you'll create your own food chains using pictures from magazines. The site also has 18 questions to see if you can identify the ecologic role played by various organisms.

This illustrated guide to food chains and ecological pyramids will help clarify how energy flows through an ecosystem.

Describes how a food chain works in a desert and how the Mojave desert food chain works in particular.

Describes the characteristics of a tundra biome, how a tundra food chain compares to a tropical food chain, and what the different trophic levels look like.

Explains what a primary consumer's role in a food chain is and provides examples.

Discussion of what makes up a food chain and its significance. Includes some historical perspectives on developing the concept, and on how a pesticide called DDT affected food chains during the 1960's.

A very informative site that discusses food chains and webs in detail. Not too complicated and fairly easy to understand, it also includes some pictures.

PBS site provides some basic information on the food chain.

A lesson that helps students understand food chains and food webs. With the background information, interactive activity, and extensions, students will see the interconnectedness and interdependence of organisms. Activity has students...

This 34-page document discusses obesity, nutrition labeling, the average American diet, the nutritional quality of foods from restaurants, and ways poor eating, obesity, cardiovascular disease, and premature death can be fought. Chapters...

Complete illustrated discussion of energy flow within ecosystems, including discussions of trophic levels, ecological pyramids, food chains and webs, biological magnification, and cycles.

Learn how krill fight for survival as the sea ice melts and the population decreases. Discover how krill relate to our food chain and learn about their development.

Did you know that 80% of the fish we eat comes from the ocean? Since oceans cover so much of the earth you would think that we would never be in danger of running out of its resources. Learn how overfishing is causing many problems with...

Explains what is meant by a tertiary consumer in a food chain and provides examples.