It's About Time
Photosynthesis, Respiration, and the Carbon Cycle
Provide your class with the opportunity to view our carbon cycle close up. Young scientists research the cycle of oxygen as it completes the tasks of photosynthesis and respiration. They explore the importance of carbon in an ecosystem...
National Institute of Open Schooling
Air Pollution
Seventy percent of the air pollution in China is due to car exhaust. Under the umbrella of environmental chemistry, learners extensively explore air pollution. From the makeup of our atmosphere to sources of major air pollutants, classes...
NOAA
An Ocean of Energy
Young biologists trace the path of the sun's energy through marine ecosystems in the second part of this four-lesson plan series. Building on prior knowledge about producers, consumers, and decomposers students are introduced to the...