Volcano Review

What is the name for a scientist who studies volcanoes?

• volcanologist

• eruptionologist

• geologist

• seismologist

What are two factors that determine the explosiveness of a volcano? Select both.

• how much gas is in the magma

• the amount of tephra in the magma

• the height of the volcano

• the minerals present in the magma

A composite volcano is also known as a ____________________.

• stratovolcano

• tephravolcano

• boomvolcano

• thermovolcano

What type of rock is made when magma or lava cools?

• metamorphic

• igneous

• sedimentary

What are hot springs that contains more mud than water?

• mud pots

• geysers

• pyroclastic flow

• tephra

Volcanic fog or volcanic gases are called ____________.

• folcanic gas

• vog

• golcanic gas

• cog

What are jagged bits of crushed rock that comes out of a volcanic eruption?

• volcanic ash

• obsidian

• pumice

• granite

What is a hot spring that periodically blows steam and hot water into the air?

• geyser

• mud pot

• pyroclastic flow

• debris flow

What are pockets of molten rock deep in Earth’s lithosphere?

• magma chambers

• volcanic ash

• pyroclastic flows

• debris flows

Tags

NGSS.MS-ESS2-1

What is a steep walled depression at the top of the volcano around a volcano’s vent?

• crater

• caldera

• cone

• side vent