Volcanoes

Question 1

What is a volcanologist?

Answer 1

A volcanologist is a scientist who studies volcanoes

Question 2

What is lava?

Answer 2

Lava is when the plates of the earths crust separate or collide,

magma can make its way to the surface.

When it reaches the surface, it cools and hardens - which is called lava

Question 3

What is a mid ocean ridge?

Answer 3

A mid ocean ridge is when plates separate under the ocean

lava can pour out along cracks on the earths surface forming a ridge

This lava can build up and become what is called the mid ocean ridge

Question 4

What is a vent?

Answer 4

A vent is when lava forces its way violently through a small hole

Question 5

What is an active volcano?

Answer 5

Any volcano that has erupted in the past 10,000 years

Question 6

What is a dormant volcano?

Answer 6

A volcano that has not erupted in the past 10,000 years but that is expected to erupt again in the future

Question 7

What is an extinct volcano?

Answer 7

A volcano that is never expected to erupt again

Question 8

Give 2 postives and 2 negatives for economic and social reasons

Answer 8

SOCIAL
1. Reduced unemployment
2. Increased tourism and employment
ECONOMIC
1. Generated income
2. Fertile soil

SOCIAL
1. Contaminated water supply
2. Evacuation of locals
ECONOMIC
1. Travel chaos
2. Loss of earnings