What A Tangled Web We Weave

How can you tell what an owl has eaten? Study the food chain and flow of energy in an ecosystem by dissecting an owl pellet and noting the bones found inside. Additionally, the lesson includes a game about consumers and producers with a...

Explore various ecosystems from around the world as your class discovers the interdependence of all living things. Using the provided sets of ecosystem cards, young scientists work in small groups building food webs to demonstrate the...

Two sequential parts to this lesson introduce your class to the electromagnetic spectrum, the ability to absorb radiant energy, and the pigments in leaves that are responsible for collecting sunlight to be used in the photosynthetic...

This smart slide show outlines energy flow in ecosystems. It addresses the sun as the primary source of all energy, flows into explanations of photosynthesis and respiration, and explores trophic feeding levels and productivity....

What happens when an ecosystem gets out of balance? This is the focus of a video that explains the importance of each organism's role in an ecosystem.

How energy is passed from one organism to another is the focus of this science lesson plan. Young scientists discuss how they get the energy they need to live, then take a closer look at food chains, food webs, and energy pyramids in...

A disgusting and direct description of detritus and decomposition is digested in this drill! Your life science class learns about the importance of decomposers in the food chain and finds out how one organism's trash is another...

What is energy, anyway? Use this featurette as an introduction to your middle school energy unit. It successfully touches each of Earth's physical systems, the sun as our main source of energy, and the flow of energy through the food...

Students collect data about energy usage and use mathematical calculations to analyze their data. In this energy conservation and statistics math lesson, students survey their homes to complete an energy usage worksheet. Students...