Unit 2: Dynamic Crust

What is the definition of the lithosphere?

• The lithosphere is the rigid outer layer of the Earth, consisting of the crust and the upper mantle.

• The lithosphere is the innermost layer of the Earth, consisting of the core.

• The lithosphere is the layer of the Earth where all weather phenomena occur.

• The lithosphere is the liquid layer of the Earth, consisting of the oceans.

Which type of crust has a density of 3.0 g/cm³?

• Oceanic crust
• Lithospheric crust
• Mantle crust
• Continental crust

What is the thickness of the continental crust?

• 30-50 km

• 5-10 km

• 70-100 km

• 100-150 km

Earthquakes are:

• movement of tectonic plates

• weather phenomena

• man-made events

• unrelated to geological activity

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

What is the actual starting point of an earthquake called?

• Focus

• Epicenter

• Seismic zone

• Fault line

Which type of earthquake wave is compressional and travels through solids, liquids, and gases?

• S-wave
• Surface wave
• Rayleigh wave
• P-wave

Tags

NGSS.MS-PS4-2

What is the point on land above the focus of an earthquake called?

• Epicenter

• Hypocenter

• Seismic Zone

• Fault Line

Which waves are slower, P-Waves or S-Waves?

• P-Waves

• S-Waves

What type of waves arrive second and move through the ground like a snake?

• L-waves

• S-waves
• Raleigh waves

• P-waves

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which type of waves cause the most structural damage?

• P-waves

• Raleigh Waves

• L waves

• S-waves