Students identify and discuss the adaptive characteristics and behaviors of fish. They view slides of fish, and design and create a model of a fish of the future, listing the ways their fish adapt to survive.

Young environmentalists study the effects that pesticides have on birds, such as the peregrine falcon. They also look at predator/prey interactions. Some wonderful in-class activities accompany an inventive lesson. After an activity that...

What is a dichotomous key? When your kids ask, hand them a learning exercise like this one, to explain it. They use the key to identify four different trees, based on the budding twigs they've produced. Tip: Have learners extend this...

The ways that animals adapt to their environments is quite remarkable. In this life science lesson, fifth graders take a look at some of the ways that aquatic animals that live in Arctic or Antarctic waters survive. They perform an...

Students develop an action plan to prevent trash from becoming a problem in the future.

Students learn about energy flow in food webs, including the roles of the sun, producers, consumers and decomposers in the energy cycle. They model a food web and create diagrams of food webs using their own drawings and/or images from...

Students will build a food web diagram and illustrate the movement of matter through a series of food chains. Resources include detailed plans, examples of student work, videos of the lesson in action, and sample food webs.

Students construct possible food webs for six different ecosystems as they learn about the roles of producers, consumers, herbivores, carnivores and decomposers.

[Free Registration/Login may be required to access all resource tools.] Videos, texts, activities, and assessments about food chains and food webs in an ecosystem.

A video and a short multiple-choice quiz on food webs that explains the difference between food webs and food chains, and the relationships that exist between organisms.

Jorge is a cook in an underwater restaurant. He knows a lot about food webs. Dive in and learn about it with him.

A comprehensive overview of food webs. Includes three videos: a half-hour show, a video short, and a short video where an expert answers children's questions. Other features of the site include facts, links, games and activities, a...

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.

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

The difference between food chains and food webs is explained.

Starts with living and non living and works through producers, consumers, food chains and food webs.

The learners will become the food web in this fun interactive classroom activity. Detailed instructions, background information, guiding questions, and activity worksheets are provided.

Explains what a food web is, the complexity of one in a rainforest, and how energy flows through a food web.

Explains the characteristics of tropical and temperate rainforests and what rainforest food webs look like.

This unit contains interactive lessons on animal ecosystems, animal classification, adaptations, and food chains.

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

Students will create a food chain model and use it to describe the movement of matter among plants, animals, decomposers, and the environment. Resources include a detailed lesson plan, student handouts, pictures of a completed chain,...

This tutorial review over food chains and how energy is transferred through them.

A module that explains what an ecosystem is and how energy and matter move through them. Students will look at the different roles of plants and animals and at ecological relationships in food chains and food webs.