Topic 5, Lesson 1

What is Earth's thin layer of surface rock called?

• fault

• earthquake

• crust

• hazard

The crust is the top part of large pieces of rock called ______________________ plates.

Are tectonic plates always pushing, pulling, or sliding past each other?

• no

• yes

What causes stress along faults?

• the crack

• tectonic plates continuously moving

• an earthquake

• a tsunami

What is a crack in the crust where the two sides slide past each other?

• a fault

• an earthquake

• a tsunami

• a hazard

What causes an earthquake, or a shift within Earth, to occur?

• the crust

• tectonic plates

• stress being built up from tectonic plates moving

• stress being released from tectonic plates moving

What is a danger to humans resulting from an event?

• a volcano

• a tsunami

• an eruption

• a hazard

An earthquake's energy is measured on a __________________________ scale.

What scale reading shows a serious earthquake?

• M3.0

• M1.0

• M6.0

• M5.0

What is a massive wave that can cause damage when it reaches land?

• a tsunami

• an earthquake

• a volcano

• an eruption