Volcanoes Review

What is the difference between magma and lava?

• Magma is after the volcano erupts and lava is inside the volcano.

• There is no difference

• Magma is inside the volcano and lava is after it erupts.

What is meant when a volcano is dormant?

• It has not erupted in a long time but still can erupt.

• It is currently erupting.

• It will not erupt again.

The 3 main types of volcanoes are:

• Shield, Composite and Convergent

• Shield, Composite and Divergent

• Shield, Composite and Cinder Cone

__________ volcanoes erupt very slowly and are very wide and broad.

• Composite

• Cinder Cone

• Shield

_____________ volcanoes can form on the sides of Composite volcanoes.

• Shield

• Cinder Cone

What type of volcano has a violent eruption and tends to be wide but steep.

• Composite

• Shield

• Ashflow Caldera

In order for a volcano to erupt the magma must travel

• From the crater, to the magma chamber and then out the main vent

• From the magma chamber, up the conduit and out the vent

• From the magma chamber, up the crater and out the vent.

What is pyroclastic flow?

• A volcano that does not erupt

• Hot ash, lava fragments and gases that is violently ejected from a volcano

• The easy flow of lava down a volcano

Tags

NGSS.MS-ESS3-2

What is a volcano?

• An opening in the Earth's crust where magma erupts to the surface.

• A violent shaking of the Earth that occurs when two plates scrape past each other.

• A large storm with very high speed winds

What kind of rocks are formed when lava from a volcano cools?

• Metamorphic Rock

• Igneous Rock