Volcanoes

The Hawaiian Islands are a string of volcanoes that formed over

• a hot spot

• plate boundaries

• the Ring of Fire

• tectonic plates

Tags

NGSS.MS-ESS2-1

The long tube in the ground that connects the magma chamber to Earth’s surface is called the

• vent

• side vent

• pipe

• crater

Tags

NGSS.MS-ESS3-2

If a volcano’s magma is high in silica, the volcano will probably

• erupt quietly

• remain dormant

• erupt explosively

• not erupt at all

The main hazard from a quiet volcanic eruption is

• volcanic gases

• lava flows

• geysers

• pyroclastic flows

Tags

NGSS.MS-ESS3-2

When many layers of thin, runny lava build up a high, level area, the result is a

• lava plateau

• shield volcano

• cinder cone volcano

• composite volcano

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NGSS.MS-ESS2-2

Before lava reaches the surface, the molten material is called

• rock

• magma

• volcanic ash

• liquid fire

A volcano that is considered “sleeping” and may erupt again at some time in the distant future is

• active

• dormant

• explosive

• extinct

Which of the following helps to determine how easily magma flows?

• the amount of silica in the magma

• the diameter of the pipe

• the size of the crater

• the number of vents on the volcano

When groundwater heated by magma rises to the surface and collects in a natural pool, it is called a

• hot spring

• geyser

• vent

• pyroclastic flow

Tags

NGSS.MS-ESS2-4

If geologists detect many small earthquakes in the area near a volcano, what can they infer about the volcano?

• It is dormant

• It is probably about to erupt

• It is extict

• It is a good source of geothermal energy

Tags

NGSS.MS-ESS3-2