Unit 1 Earthquakes & Volcanoes

Question 1

active volcano

Answer 1

A volcano that might erupt at any time

Question 2

black smoker

Answer 2

A kind of hydrothermal vent which churn out black water.
The black color is created by minerals in the water. These
minerals accumulate over time and form chimneys of rock on the ocean floor

Question 3

dormant volcano

Answer 3

A volcano that is temporarily inactive but that could erupt
sometime in the future.

Question 4

eruption

Answer 4

The ejection of lava, rock and gas from an active volcano

Question 5

geyser

Answer 5

A hot spring that discharges water and steam, heated inside the Earth, in bursts

Question 6

hot spot

Answer 6

An area of the Earth’s crust where magma consistently breaks through and forms a hot spot

Question 7

hydrothermal vent

Answer 7

A hole in the seabed through which a thermal (hot) spring emerges

Question 8

lava

Answer 8

Hot, molten rock which bursts or flows from volcanoes

Question 9

magma

Answer 9

Hot, molten rock inside the Earth.

Question 10

Ring of Fire

Answer 10

A ring of volcanoes and faults that circle the Pacific Ocean