Curated OER
Earth's Changing Atmosphere
Learners examine the constant changing of the Earth's atmosphere. After labeling the layers of the Earth, they identify various processes inside the Earth that can cause gases to be emitted. Using the internet, they research how the...
Libre Text
Libre Texts: Geochemistry: The Earth and Its Lithosphere
The Earth has been in a state of continual change since its formation. The major part of this change, involving volcanism and tectonics, has been driven by heat produced from the decay of radioactive elements within the Earth. The other...