Earth Cycles

• The Earth changes over time, both rapidly and gradually.
• Mapping conditions of the Earth can help anticipate natural disasters.

Topics

• Rocks on Earth cycle into and out of its molten core.
• Carbon cycles in and out of the atmosphere.
• Water cycles in and out of the atmosphere.
• The Earth's climate fluctuates dramatically across geologic times scales.
• Human activity introduces distinctive contaminants into Earth's ecosystem.