Understanding Science 2

A group of interacting elements where a change in one element affects behavior of the others is a

• Cycle

• System

• Theory

• Resource

Which of the following are spheres in the Earth system? Select all that apply.

• Tectonics

• Geosphere

• Hydrosphere

• Biosphere

• Core

What two layers of the Earth are rock?

• Inner Core

• Outer Core

• Mantle

• Crust

What two layers of the Earth are mostly iron?

• Inner Core

• Outer Core

• Mantle

• Crust

What one layer of the Earth is liquid?

• Inner core

• Outer core

• Mantle

• Crust