Earthquakes
Volcanoes
Fill in the Blank
100

The instrument that measures seismic waves.

What is a seismograph?

100

An opening in Earth that erupts gases, ash, and lava.

What is a volcano?

100

____________ is a crack in the Earth's crust.

What is a fault?

200

The that waves that are generated by an earthquake.

What are seismic waves?

200

A tool used to measure the slope of volcanoes.

What is a tiltmeter?

200

The _________ is the measure of the energy that is released during an earthquake.

What is magnitude?

300

The tool used to measure the magnitude of earthquake waves.

What is the Richter Scale?

300

This volcano has the highest mountain peak in Oregon.

What is Mt. Hood?

300

The ________ of the Earth move/slide on plastic (wax paper + cornstarch lab) like the layer of the mantle.

What are plates?

400

The spot where earthquake waves originate.

What is the focus?

400
The volcano in Washington state that erupted in 1980 and killed many species.

What is Mt. Saint Helens?

400

The _________ theory that states that Earth's crust and part of the upper mantle are broken into sections.

What are plate tectonics?

500
This type of emergency drill is used to prepare for earthquakes by taking cover under tables/stable areas.

What are earthquake drills?

500

The volcano found within Crater Lake of Oregon, the deepest lake in the U.S.

What is Mt. Mazama?

500

The _______ is the solid, outer layer of the Earth with the crust and the upper part of the mantle.

What is the lithosphere?