Solar Energy and the Biosphere
Focus: What interactions supply energy to ecosystems? This Big Idea examines the Sun’s role as the ultimate source of energy for Earth. You will also consider the interactions that provide a constant flow of energy to sustain the biosphere.
Matter and Earth’s Spheres
Focus: What interactions cycle matter through Earth’s spheres? This Big Idea explores the variety of ways in which matter continually cycles through Earth’s spheres, using examples of water, carbon and nitrogen.
Confronting Climate Change
Focus: Trees and bogs have functions like those of lungs and kidneys. How is climate change similar to disruptions that affect body systems? This Big Idea explores the causes and effects of climate change and ways that we can respond to the challenges it presents.
