Most people are aware that plants undergo photosynthesis, a process by which they convert sunlight and carbon dioxide in sugar and water. But not as many realize that plants also undergo respiration, which is the reverse...

This site from the EPA provides a useful Energy Pollution Calculator which will help students and other interested persons calculate the greenhouse gases and other pollutants created from the energy they consume. The...

Earth’s climate is a mind bogglingly complex system of interdependent parts, and teaching about that system is no easy task. This site from NOAA climate.gov provides all the resources teachers need to bring the subject...

The terms greenhouse effect, climate change, and global warming are often used interchangeably, yet they really refer to three separate and distinct processes. This activity examines all three and assesses whether...

The transport and transformation of substances in the environment are known collectively as biogeochemical cycles. These global cycles involve the circulation of elements and nutrients that sustain both the biological...