At first glance, grassland ecosystems might seem dull and uninteresting, but once you start to explore it's amazing the things you'll find! Through this series of engaging lessons, activities, and experiments, elementary students examine...

Students identify natural resources, discuss conservation and protection of them, and identify how pollution is harmful to the environment. Seven lessons on one page.

Given illustrations, students will analyze the flow of matter and energy in food chains, food webs, and ecological pyramids.

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.

[Free Registration/Login may be required to access all resource tools.] Discusses parasitic and mutualistic relationships of fungi.

This module offers an in depth study of the fundamental components of ecosystems. Activities include mini-lessons with videos and student assignments.

[Free Registration/Login may be required to access all resource tools.] Ecology is the study of how living organisms interact with each other and with their environment. Organisms interact with each other through various mechanisms, one...

[Free Registration/Login may be required to access all resource tools.] Predation is another mechanism in which species interact with each other. Predation is when a predator organism feeds on another living organism or organisms, known...

[Free Registration/Login may be required to access all resource tools.] Symbiosis describes a close and long-term relationship between different species. At least one species will benefit in a symbiotic relationship. There are three...

Earth is full of a variety of living things that interact with one another in many different ways. This informational text explains the various different types of relationships they can have with one another. It also offers guided...

This unit provides students with an opportunity to study ecological relationships with an emphasis on the Sonoran Desert. Students appreciate the complexity and balance that supports the exchange of energy and matter within food webs....

Learn about the anatomy and ecological relationships of the horseshoe crab.

Travel around the world with this collection of activities from Let's Go Luna! From making postcards and present tags to dressing up your favorite characters in winter outfits, your child will be introduced to social-emotional and social...

[Free Registration/Login may be required to access all resource tools.] Overview of symbiotic relationships.

[Free Registration/Login may be required to access all resource tools.] Covers interactions between organisms.

Discusses the interrelatedness of all living things and of ecosystems and biomes, and what organisms need to survive and to maximize the carrying capacity of an ecosystem. This explanation is followed by a series of activities including...

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

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

Students discover that variation in plants allows some varieties to survive in near-drought conditions. Next, students learn that different types of rabbits prefer to eat different varieties of plants. Students make the connection...

A tutorial podcast providing an overview of the interdependence of organisms in their environment. [1:05]

A video and a short multiple-choice quiz on the topic of ecosystems, covering biotic and abiotic factors, and the roles organisms play in an ecosystem.

[Free Registration/Login may be required to access all resource tools.] Covers how species interact with each other.

[Free Registration/Login may be required to access all resource tools.] You are probably familiar with birds as food. Around the world, people consume chicken, turkey, and even more exotic birds, like ostriches. Can you think of other...

Bermuda is a mysterious place. Meet Scotty and his family and join them on their holiday to learn about energy transfer in ecosystems.