Chapter 4 Volcanoes Flashcards
How are volcanoes formed?
Volcanoes are formed when plates collide or separate, lava comes out.
What are volcanoes?
Volcanoes are cracks in the ground where ash, cinder and lava pour out .
What is a magma chamber?
A magma chamber is where the lava is stored.
What is the vent?
The vent is where the lava, ash, cinder rise through.
What is the crater?
The crater is the top of the volcano.
What is a mid-ocean ridge?
A mid-ocean ridge is caused when plates separate and lava rises to the ocean floor and cools quickly.
Name a mid-ocean ridge?
The mid-Atlantic ridge
Name a volcanic island?
Iceland
How does Iceland benefit?
Tourism
New land
Geisers.
What is the Pacific ring of fire?
The Pacific ring of fire is a group of volcanoes at the plate boundary of many plates
What is shaft mining?
Shaft mining is used to remove delicate materials from within the crust.
What is open cast mining?
Open cast mining is used to remove rock from the surface of the crust
What is drilling?
Drilling is used to remove oil and gas from within the crust.
