Seventh graders discover how an ecosystem works by creating one in class.  In this Earth science lesson, 7th graders study vocabulary terms associated with ecosystem and read environment handouts.  Students create an...

Read 37 slides on energy flow and the nutrient cycle.

This website describes trophic levels, transfer of energy between trophic levels, pyramids of ecology, and nutrient cycles within the environment.

Nitrogen is essential to all living things. This article explains what the nitrogen cycle is and the five steps involved in it.

Human beings have an enormous impact on the natural environment, and ultimately on each other. The way we chose to house, clothe, shelter, and meet the needs for vital resources such as food, energy, and water, not only affect the...

In this lesson plan, students address the impact of unsustainable fishing practices.

An overload of nutrients, called eutrophication (Greek for "good-nutrition"), can be harmful to estuaries. This phenomenon is also referred to as "over-enrichment," or "nutrient pollution". Students will investigate the range of...

In this lesson, students will extend their knowledge of matter and energy cycles in an organism to engineering life cycle assessment of a product. Students will learn about product life cycle assessment and the flow of energy through the...

Learn that the nitrogen cycle illustrates how nutrients cycle through a terrestrial ecosystem with the chapter in this free textbook. Explains how nitrogen plays an important role for life. See a diagram of the nitrogen cycle that shows...

Students learn about energy and nutrient flow in various biosphere climates and environments. They learn about herbivores, carnivores, omnivores, food chains and food webs, seeing the interdependence between producers, consumers and...

An advanced discussion of plant interactions and relationships. Energy flow, nutrient cycling and succession are discussed. Try the quiz to check your understanding.

This journal article discusses incorporation of the Winogradsky Column into high school science classrooms to demonstrate nutrient cycles and inter-relatedness of organisms in the environment.

Students learn about inheritance, evolution, and ecosystems. Some topics explored in the tutorial are five kingdoms, respiration, energy transfer, and nutrient cycle.

Everything on our planet is linked by a giant recycling system called the biogeochemical cycle. How our planet recycles and reuses everything we need to support life is explained by making a miniature biosphere in this lab. You will also...

Kids learn about the oxygen cycle and how this nutrient travels through the ecosystem to sustain life on Earth.

Kids learn about the carbon cycle and how this nutrient travels through the ecosystem to sustain life on Earth.

Kids learn about the nitrogen cycle and how this nutrient travels through the ecosystem to sustain life on Earth.

An explanation of ocean chemistry, supported by illustrations, for example, of the global carbon cycle in the 1980s and the annual carbon dioxide flux. The concentration of nutrients in the ocean is discussed for its impact on marine...

Through a series of multi-media learning activities, students will assess the dependence of all organisms on one another and the flow of energy and matter within their ecosystems.

[Free Registration/Login may be required to access all resource tools.] In this module, students will learn about the cycles of nature (water, carbon, nitrogen, and phosphorus) that support the flow of nutrient matter through an...

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...

Slideshow that looks at energy flow in an ecosystem. Explains what an ecosystem is, how energy flows through it, the producers and consumers of energy, and food chains. Links to a video about plastic debris in the ocean.

This lesson will provide the characteristics of the domain fungi.

Ecosystems contain two kinds of commodities: matter (nutrients) and energy. Nutrients cycle through the ecosystem, available for repeated use by organisms. These cycles of use and reuse are called biogeochemical cycles. Energy instead is...