What is responsible for earthquakes, volcanoes, and mountains?

What type of volcano alternates layers of lava and tephra?

The youngest rocks are located on the _____________.

Plate boundaries is where most ________ and _________ happen. (choose two)

Studying an area's earthquake history, securing hot water heaters, and taking heavy objects down from high shelves will improve safety factors during a what?

A fault is what?

Stress between plates is the most common cause of _________.

Broken sewage lines, fires, explosions, and tsunamis are all dangers of ___________.

An earthquake is caused by a sudden release of what?

The Moment Magnitude Scale is used to measure what?

Earthquake waves that move in a parallel motion are __________.

The place on the Earth's surface above the location of the earthquake is called what?

The place within earth where the earthquake is occurring is called what?

The theory that explains how the behavior of earthquakes is called the ___________ theory

Most of the worlds active ________ occur along subduction boundaries. (choose 2)

What are some examples of Pyroclastic Material? (choose multiple)

Lava with a low silica content moves __________.

Magmas with a lot of gas produce eruptions that are what?

_____________ is an example of a volcano that formed over a hot spot.

Melted rock above earth's surface is called what?

What is a Volcanologist?

Lots of gases in magma causes _________ eruptions.

What is smaller than lapilli?

Slow moving magmas are called what?

What feature is formed at subduction boundaries?

What often occurs when plates are colliding?

Sinking plates are at this type of boundary.

Where plates move apart, the material in the asthenosphere is ____________.

Plates move apart at _________ boundaries.

The study of the formations and movement of plates is called what?

The partially melted layer of the mantle is called the ________.

What are the rigid pieces of the crust are part of the what?

________ plates are denser than _______ plates.

MOR's happen at ___________ boundaries.

true or false: Plates slide past each other at divergent boundaries.

true or false: Deep sea trenches form at continental collision boundaries

true or false: Big mountain chains form at collision boundaries.

true or false: volcanologists are a type of scientist.

What are the types of tephra? (choose multiple)

What is the smallest type of tephra?

Ocean plates are _______ dense than continental plates.

Plate movement is most likely caused by ___________.

What is the difference between felsic and mafic magma?

What are the three pieces of evidence for the continental drift? (choose three)

What is an opening from which lava and tephra flow? (ex. lava tube)

A _________ is an often circular depression formed by explosions of magma, then the upper portion collapses. Also contain vents.

true or false: a hot spring is groundwater that comes to the surface that got heated by magma.

What are the three important gases in magma?

What are some ways to predict an earthquake? (choose multiple)