Detecting Climate Change
Explain why unraveling past climate changes is important and discuss several ways in which such changes are detected. Climate not only varies from place to […]
earth
Minerals: Building Blocks of Rocks
Minerals: Building Blocks of Rocks We begin our discussion of Earth materials with an overview of mineralogy (mineral 5 mineral, ology 5 study of) because […]
How do we know the age of the Earth? VIDEO
The Earth is 4.565 billion years old, give or take a few million years. How do scientists know that? The Earth is 4.565 billion years […]
Correlation of Rock Layers
Explain how rocks of similar age that are in different places can be matched up. To develop a geologic time scale that is applicable to […]