Natural Hazards: Earthquakes and Volcanoes

Which of these tectonic plate boundaries is most likely to form a volcano?

• a continental plate colliding with a continental plate

• an oceanic plate sliding past a continental plate

• a continental plate sliding past a continental plate

• an oceanic plate colliding into a continental plate

Complete the sentence.

The device that is placed on volcanoes and works with satellites to measure movement as the ground deforms from volcanic activity is called _______.

• Volcanic explosivity index.

• Tiltmeter.

• Global positioning system.

• Seismograph.

Which type of volcano occurs when a powerful blast throws molten rock and gases into the air, and is formed from small pieces of lava that erupt from a vent?

• Composite volcano.

• Cinder cone.

• Shield volcano.

• Lava dome.

What comes out of a volcano?

• Saltwater.

• Gases.

• Ash.

• Lava.

An opening on the Earth's surface through which molten rock flows and the material that builds up around the opening together form a...

• convergent boundary.

• subduction zone.

• volcano.

• trench.

Tags

NGSS.MS-ESS3-2

An area of volcanic activity far from a tectonic plate boundary is called a(n)...

• island arc.

• hot spot.

• cone.

• mantle plume.

Complete the sentence.

The Hawaiian Islands are in the middle of a large tectonic plate with many volcanoes. The volcanoes are the direct result of the tectonic plate...

• moving over a hot spot where magma pushes into the crust.

• being thicker than usual at some spots.

• colliding with another tectonic plate and moving upward.

• being forced under another tectonic plate.

Tags

NGSS.MS-ESS2-1

Where does the lava in volcanoes come from?

• The outer core.

• The earth's crust.

• The inner core.

• The mantle.

The Hawaiian Islands are formed by hot spots.

Which options describe the how these islands change over time?

• The hot spot moves with the plate. Multiple small hot spots cause the multiple islands.

• The islands with active volcanoes get smaller and will eventually disappear.

• The plate moves over the hot spot. As this happens, new volcanoes will form under the sea.

• The islands with inactive volcanoes get smaller and will eventually disappear.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

What is a dormant volcano?

• A volcano that has not erupted for a very long time.

• A volcano that scientists think cannot erupt.

• A volcano that is about to erupt very soon.

• A volcano that erupted in the past and is expected to erupt again in the future.