In this cells learning exercise students answer questions regarding the characteristics of living organisms observed during a pond water survey.  Students draw diagrams of a food chain. 

In this ecology worksheet, students will review 10 vocabulary words associated with the basic principles of ecology. This worksheet has 10 fill in the blank questions.

In this literacy worksheet, students look for the words in the puzzle that are related to the theme of the word search. Spelling skills are worked on.

[Free Registration/Login may be required to access all resource tools.] Discusses how autotrophs and heterotrophs obtain energy.

[Free Registration/Login Required] An interactive exercise regarding autotrophs and heterotrophs. You will need a sign-in to access this media, but it is worth your while!

Explains what autotrophs and heterotrophs are, the several types of each, their roles in an ecosystem's food chains, and the differences between them.

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."

This lesson will review the difference between autotrophs and heterotrophs, and show how both play important roles in a food web. It is 3 of 4 in the series titled "Autotrophs vs. Heterotrophs."

This lesson will review the difference between producers and consumers, and show how both play important roles in a food web. It is 2 of 4 in the series titled "Producers and Consumers."

In this activity students conduct a soil analysis to understand soil types and explore the relationship between the garden and healthy, fertile soil. Soil is a natural resource that is crucial to life on Earth and when managed properly,...

[Free Registration/Login may be required to access all resource tools.] Plants are producers, which means they are able to make their own food, as well as "food" for other organisms. Plants are also autotrophs - they collect energy from...

Take this interactive, multiple-choice quiz over concepts in ecology, then review your score and any missed questions at the end.

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 prokaryotes get energy and nutrients, and find out the difference among chemotrophs, phototrophs, heterotrophs and autotrophs.

Useful introduction to the carbon cycle with a diagram and a discussion of the effects of carbon dioxide on the greenhouse effect and global warming.

This lesson will explain how to create a food web to show transfer of energy within a community. It is 1 of 4 in the series titled "Food Webs."