Chapter 2

This sphere interacts with cosmic rays, protects us from solar charged particles, and keeps the solar winds from removing the air around our planet.

• Magnetosphere
• Atmosphere
• Hydrosphere
• Geoshpere
• Cryoshpere

The dense metallic center of the Earth.

• Crust
• Mantle
• Core
• Lithosphere
• Asthenosphere

The brittle crust and uppermost mantle found in a rigid layer is called the _____.

• Crust
• Mantle
• Core
• Lithosphere
• Asthenosphere

This is the thick middle layer in the solid part of the Earth.

• Crust
• Mantle
• Core
• Lithosphere
• Asthenosphere

This is the partially melted plastic layer within the mantle and moves as slowly as your fingernail grows.

• Crust
• Mantle
• Core
• Lithosphere
• Asthenosphere

Is a dense ball of solid iron crystals at the exact center of the Earth that rotates faster than the rest of the Earth.

• Crust
• Mantle
• Inner Core
• Outer Core

Liquid rock center of the Earth with temperatures reaching 6000 degrees C.

• Crust
• Mantle
• Inner Core
• Outer Core

This is the brittle, rocky outer layer of the Earth.

• Crust
• Mantle
• Core
• Athenosphere

As scientists explore deeper and deeper into Earth's crust, what have they noticed about temperature and pressure?

• both temperature and pressure decrease
• both temperature and pressure increase
• pressure increases while temperature decrease
• temperature increases while pressure decreases

The formation of Earth and its shape are due mostly to what force?

• density
• gravity
• magnetism
• temperature