It's About Time
Who Eats Whom?
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...
It's About Time
Energy Flow in Ecosystems
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...
Kentucky School for the Deaf
Levels of Organization within an Ecosystem
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.
Planet Pals
Planet Pals: The Food Chain
Omnivores, herbivores and carnivores are waiting for you. The food chain comes to life at this friendly site.
Bio Topics
Bio Topics: Food Chains and Webs
Trace the energy transfer through food chains and food webs. Check your understanding by hovering your mouse over questions to reveal the answers.
Science Struck
Science Struck: Difference Between Food Chain and Food Web
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.
Science Struck
Science Struck: Learn All About the Ocean Food Chain
Read about the different predators, consumers, and producers that make up an ocean food chain.
FT Exploring
Ft Exploring: Energy Pyramid and Food Chains
This illustrated guide to food chains and ecological pyramids will help clarify how energy flows through an ecosystem.
Science Struck
Science Struck: A Bird's Eye View of the Desert Food Chain
Describes how a food chain works in a desert and how the Mojave desert food chain works in particular.
Science Struck
Science Struck: Food Chain in the Tundra Region
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.
Science Struck
Science Struck: Examples of Primary Consumers in the Food Chain
Explains what a primary consumer's role in a food chain is and provides examples.
MadSci Network
What Is a Food Chain?
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.
Other
Food Chains and Webs
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.
Other
Bigelow Laboratory for Ocean Sciences: Fitting Algae Into the Food Web
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...
PBS
Pbs: The Living Edens: The Food Chain
PBS site provides some basic information on the food chain.
Other
Marietta College: Ecosystems
Complete illustrated discussion of energy flow within ecosystems, including discussions of trophic levels, ecological pyramids, food chains and webs, biological magnification, and cycles.
Museum of Science
Museum of Science: The Living Sea: Predators and Prey
This Museum of Science page does an excellent job of explaining the importance of plants as producers in the sea. The food chain or food web has to start with the plants.
Science Struck
Science Struck: Examples of Tertiary Consumers
Explains what is meant by a tertiary consumer in a food chain and provides examples.
Science Struck
Science Struck: Tropical Rainforest Food Web
Explains what a food web is, the complexity of one in a rainforest, and how energy flows through a food web.
Science Struck
Science Struck: Rainforest Food Web
Explains the characteristics of tropical and temperate rainforests and what rainforest food webs look like.
PBS
Pbs Teachers:yellowstone: Yellowstone Food Web
Investigate the interdependence of wildlife in the Yellowstone ecosystem and draw an ecosystem showing the interdependence of life forms.
Science Struck
Science Struck: Decomposers in the Ocean: Role and Examples
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.
BiologyWise
Biology Wise: Understanding the Process of Biological Magnification
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,...
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