Unit 8 Review

1. The mesosphere is the strong lower part of the mantle.

• True

• False

1. What physical property causes the Earth to have layers?

• Temperature

• Density

• 1. Pressure

• 1. Seismic waves

1. What is the name of the sphere of the Earth that contains rock?

• Atmosphere

• Geosphere

• Biosphere

• Cryosphere

What are the compositional layers of the earth defined by?

• Physical properties

• Chemical properties

• Magnetic properties

• Biogeographic properties

1. What does Earth’s magnetic field shield it from?

• 1. Climate change

• 1. Asteroid impacts

• 1. Solar wind

• 1. Auroras

1. Density _______________ as you move towards the center of the Earth.

• Decreases

• Increases

• Stays the same

1. What type of metals is the inner core made mostly of?

• 1. Iron and basalt

• 1. Iron and granite

• 1. Iron and nickel

• 1. Iron and silicon

1. Temperature _____________ as you move towards the center of the Earth.

• Decreases

• Increases

• Stays the same

1. What source of data do scientists use to determine the composition of the deep interior of the Earth?

• Density

• 1. Drill samples

• 1. Seismic waves

• 1. Tidal waves

What is the correct order (starting from the surface) of Earth’s layers?

• Crust, outer core, inner core, mantle

• Mantle, outer core, inner core, crust

• 1. Outer core, inner core, crust, mantle

• 1. Crust, mantle, outer core, inner core