Volcanoes

Where in the world are 3 quarters of the world's active volcanoes found?

• On volcanic islands

• Underwater

• On the top of mountains

• At volcanic hotspots

What is volcanic lava?

• Molten rock deep in the Earth's crust

• Gas clouds created by volcanoes

• Magma that erupts on to the Earth's surface

• Ash that is spewed out on to Earth's surface

What is magma?

• A magnetic force under the ground

• Hot, molten rock

• A type of tectonic plate

• Lave

What is a hot spot ?

• Areas where magma breaks through the Earth's surface

• A crater created by hot magma or lava mixing with water

• Hot lava

• A vent in the ground from which hot gas and steam escape

What is a dormant volcano?

• One that has not erupted in recorded history

• A volcano that will never erupt again

• A volcano that erupts occasionally

• A volcano that has erupted recently

Where is the magma chamber?

• At the opening of the volcano

• It runs up the centre of the volcano

• A pocket underneath the Earth's layers

• There is no such thing as a magma chamber

What is the most common cause of a volcano eruption?

• Tectonic plates shifting

• The Earth's centre getting overheated

• It is just by chance

• People digging holes in the Earth

There are 4 main types of volcanoes. Select the 4 correct volcano names.

• Shield

• Caldera

• Exploda

• Stratovolcano

• Cinder cone

Magma that reaches the surface is called:

• Vent
• Hot spot
• Lava
• Cinders

The belt of volcanoes around the rim of the Pacific Ocean is called:

• Island arc
• Ring of Fire
• Lava plateau
• Hawaii