Theory of Plate Tectonics

The ________is a layer of solid rock that includes both dry land and the ocean floor.

• Crust
• Mantle
• Core
• Lithosphere

True or False.
The deeper you go into the earth, the greater the pressure. 

• True
• False

The core is made mostly of what two metals?

• Copper and Gold
• Silicon and Sulfur
• Iron and Nickel
• Barium and Silver

_____________ is the force exerted on a surface divided by the total area over which the force is exerted

• Pressure
• Temperature
• Viscosity
• Volume

Which layer of Earth flows slowly and causes the crust to move?

• Crust

• Mantle

• Inner Core

• Outer core

This layer is the most dense in comparison to the other layers.

• Crust

• Mantle

• Inner Core

• Outer Core

What is a physical classification of the outer core (hint: state of matter)?

• gas

• solid

• liquid

• plasma

Which reason below best describes why the inner core is a solid?

• Gravitational pull

• Iron and Nickel becomes a solid when heated

• Its under great pressure

• Its just the way it was made

A _____________ is a well tested concept that explains a wide range of observations.

• Theory of Plate Tectonics
• scientific theory
• subduction

Geologists and Seismologist study _______________ and __________________ to determine what's happening inside of Earth?

• oceans and land

• people and plants

• rocks and seismic waves