Kettner's Science

Today we read from our text to try to answer the following questions:
What does the inside of the earth look like? What is it made of? How do
we know the answers to the previous questions?

Homework: Think of a way to model the size and composition of the
earth and jot down your idea in your notebook or bring the model to
class. Also, write down how scientists know about the composition and
the depth of each layer. Can you come up with a way to show some of
their techniques?