Volcanos

Question 0

What is magma know as when it reaches the surface

Answer 0

Lava

Question 1

What is a gap or a whole in the crust called

Answer 1

Vent

Question 2

What is the pacific ring of fire

Answer 2

The pacific ring of fire contains almost half of the worlds active volcanos and some of the worlds major earthquakes

Question 3

What does active mean give an example of an active volcano

Answer 3

Still regularly erupts eg mt Edna in Italy

Question 4

What does dormant mean give an example of an dormant volcano

Answer 4

Has not erupted in years in along time but still could. Mt.st Helens in North America

Question 5

What does extinct mean give an example of an extinct volcano

Answer 5

Has not erupted. Eg mt slemish in ireland

Question 6

Name some advantages of a volcano

Answer 6

Tourism - people will pay to visit
Fertile soil- this is useful for a farmer growing crops because the minerals in the lava helps crops to grow
Geothermal energy- if an eruption occurred then ehat can be transformed into geothermal energy

Question 7

Disadvantages of a volcano

Answer 7

Loss of life- the magma and lava kills
Earthquakes and tsunamis
Communication : transport and communication are blocked by lava so ambulances police or fire bragaidd can’t get in and people can’t get out

Question 8

Where does the magma rise up from

Answer 8

The mantle

Question 9

Where does lava pour through

Answer 9

The crater

Question 10

Explain a volcano

Answer 10

Magma rises up from the mantle
If there is a gap or hole in the crust this is called a vent
Hot molten rock erupts from this vent and into the surface blasting material into the sky
When magma reaches the surface it’s known as lava
Lava pours through the crater and flows down the side of the cone it cools and hardens
Lava flows and ash layers build up to form a cone shaped mountain