Earth's Layers and Plate Tectonics

Which best describes the asthenosphere?

• molten metal
• dense, solid metal ball
• solid that flows
• dry land and ocean floor

Which layer of the earth is rock made mostly of iron?

• Lithosphere
• Core
• Asthenosphere
• Mantle

What is the rigid layer of the Earth's surface made up of the  crust and upper mantle called?

• asthenosphere
• lithosphere
• mesosphere
• continental crust

Temperature _____________________ as you go deeper into the earth.

• increases
• decreases
• goes up and down depending on the layer
• stays the same

Tags

NGSS.MS-PS3-4

What are the two types of crust?

• top crust,bottom crust
• oceanic crust, continental crust
• water,land
• none of the above 

If we compare the temperature and pressure of the Earth’s mantle to the core, what differences can we expect as we move downward into the Earth?

• Both the temperature and pressure increase.
• Both the temperature and pressure decrease.
• The temperature increases and the pressure decrease.
• The temperature decreases and the pressure increases.

Tags

NGSS.HS-ESS2-3

What is the outer core composed of?

• Basalt
• Granite
• Solid Metals
• Molten (liquid) Metals

Scientists determine what Earth’s interior looks like by using:

• Volcanoes
• Seismic Waves
• Continental Drift
• Convection Currents

The tectonic plates float on the 

• lithosphere
• lower mantle
• outer core
• asthenosphere

Tags

NGSS.MS-ESS2-3

The least dense layer

• crust
• inner core
• mantle
• outer core