Video talks about the carbon cycle and uses a computer as a metaphor to show how the cycle can be disrupted by climate change. [3:55] Includes a short quiz and a list of additional resources to explore.

In this lab activity, students use a chemical indicator (bromothymol blue) to detect the presence of carbon dioxide in animal and plant respiration and in the burning of fossil fuels and its absence in the products of plant...

A step-by-step discussion of the stages in the carbon cycle. Each step includes a diagram further explaining the processes involved, as well as pictures depicting combustion, respiration, photosynthesis, and decomposition.

A 95-page learning module that integrates biology, chemistry, and engineering. It includes in-class labs, virtual labs, and engineering design activities. Working with algae, students learn about and investigate how photosynthesis,...

Students use the gas sensors to measure the amounts of oxygen and carbon dioxide consumed or produced by a plant during respiration and photosynthesis. They also determine the rate of respiration and photosynthesis in a plant.

This site details the process of photosynthesis. Photosynthesis is the process of the production of oxygen by plants and carbon dioxide by animals, both of which are needed for respiration purposes.

There is evidence that the Earth's early atmosphere contained less oxygen but more carbon dioxide and water vapor than it does today. Increased emissions of greenhouse gases have led to climate change. Link to a test is included.

This video describes how the process of breathing in the human body works. [5:19] Includes a brief quiz and a list of additional resources to explore.

Resource to help learn about the carbon cycle.

Site offers lessons and activities designed to supplement study of the environment and ecology. Concise explanations are presented on the importance of trees in our world. Also, problem solving and creative thinking is encouraged...

This activity from NOAA Earth System Research Laboratory introduces students to the current scientific understanding of the greenhouse effect and the carbon cycle. The activity leads them through several interactive tasks investigating...

Through 10 lessons and more than 20 hands-on activities, students are introduced to the concept of an environment and the many interactions within it. As they learn about natural and human-made environments, as well as renewable and...

Students research particular types of lasers and find examples of how they are used in technology today. Teams present their findings by means of PowerPoint presentations, videos or brochures. The class takes notes on the presentations...

Here is a comparison of the atmospheric composition of Earth, Venus and Mars.

[Free Registration/Login may be required to access all resource tools.] We breathe because we need oxygen. Breathing also releases carbon dioxide from our bodies into the air. The respiratory system is the body system that brings air...

The atmosphere has not always been the same. It has been much the same, but nevertheless now contains more nitrogen and oxygen, and less carbon dioxide, than it did when the earth first formed. Recently, the addition of greenhouse gases...

This lesson will present the characteristics of plants and their impact on living things. It is 5 of 5 in the series titled "Plants."

an English chemist, philosopher, dissenting clergyman, and educator. He is known for his investigations of carbon dioxide and the co-discovery of oxygen.