Earth's Layers and Geological Processes

When studying the Earth's interior, you find that the innermost layer is solid and extremely dense. What layer are you studying?

• The mantle

• The outer core

• The crust

• The inner core

You notice that a deep, liquid layer surrounds the Earth's solid inner core. What is this layer called?

• The mantle

• The crust

• The outer crust

• The outer core

If you are standing on land and you feel slight tremors, what layer beneath your feet is likely causing the disturbance?

• The outer core

• The crust

• The inner core

• The mantle

While studying the earth's layers, you learn that the earth’s outermost layer is very thin. What is this layer called?

• The outer core

• The mantle

• The inner core

• The crust

If you feel the ground shaking after an underground explosion, what event are you most likely experiencing?

• A volcanic eruption

• A tidal wave

• A flood

• An earthquake

What is the epicenter?

• The area under the surface where rocks break

• A spot where seismic waves first appear

• The deepest point in the ocean

• The point on the surface directly above the focus

After an earthquake, the ground is shaking. What kind of waves are traveling through the Earth to cause these vibrations?

• Radio waves

• Sound waves

• Ocean waves

• Seismic waves

After measuring the intensity of an earthquake, you use a scale to describe its strength. What tool are you likely using?

• A seismograph

• A thermometer

• A barometer

• The Richter scale

While hiking, you see an opening in the ground where hot lava is being ejected. What geological feature are you most likely observing?

• A fault line

• A geyser

• A sinkhole

• A volcano

You’re working with a device that detects and records vibrations caused by earthquakes. What device are you using?

• A barometer

• A thermometer

• A weather vane

• A seismogram