Earth Science- Chapter 9 Test Review

The following increases with depth within Earth.

• temperature

• pressure

• density

• all of the above

The crust is part of the

• asthenosphere

• stratosphere

• lithosphere

• none of the above

Compared to the lithosphere, the asthenosphere is

• more rigid

• cooler

• softer and more easily deformed

• lower density

Earth’s tectonic plates are located

• below the crust

• within the asthenosphere

• only beneath the oceans

• from Earth’s surface to a depth of about 100 km.

To learn about Earth’s deep interior, including the core, scientists

• extract cores from holes drilled into Earth

• study seismic waves from earthquakes

• use optical technologies to see into Earth

• send robotic vehicles to the center of Earth

S waves DO NOT travel through

• high temperature solids

• low temperature solids

• ice

• liquids

The thickest layer of the Earth is the ____.

• Crust

• Mantle

• Outer core

• Inner core

Earth’s inner core is mostly ____.

• molten metal

• solid metal

• solid rock similar to Earth’s crust

• molten rock similar to Earth’s crust

The asthenosphere ____ the lithosphere.

• has a lower average temperature than

• is more flexible than

• is located on top of

• a, b, and c are all correct

Which term describes the portion of the Earth made up partly of crust and partly of mantle material?

• lithosphere

• asthenosphere

• hemisphere

• geosphere