Show:
Volcano Parts
Volcano
Volcano Kinds
Volcanic Rock
The Earth
100
What is the opening through which volcanic materials erupt?
Vent
100
Name one reason why people live near volcanoes.
People live near volcanoes because of: geothermal power and fertile soils.
100
What do we call a volcano that can erupt?
Active.
100

What do we call an rock formation where magma pooled and cooled under the Earth's surface?

Igneous Intrusion 

100
What is the name of the uppermost layer of the Earth?
The crust.
200
What is the chamber in the volcano that contains molten rock?
Magma Chamber
200
What is it called when a volcano is active but appears to be sleeping?
Dormant
200
What do we call a volcano that can no longer erupt and is no longer active?
Extinct.
200

What kind of intrusion occurs between two layers of the crust and makes a flat new layer of rock  

Sill

200
The earth's surface is thought to be made up of these.
Tectonic plates.
300

What is the passage through which magma flows through the volcano?

Pipes

300

What is an explosive eruption?

A volcanic eruption were pyroclastic materials and pieces are throw from the volcano.

300

What kind of lava makes a shield volcano?

Lower Silica, low viscosity 

300

Chunks of rock, lava bombs, and ot ash are all?

Pyroclastics

300
The Earth's centre is made up of a ball of molten iron called the 'what'?
The core.
400

Apart from lava, name one other substance that comes out of a volcano.

Rock, ash and gas.

400
90% of the Earth's active volcanoes are found around the plate tectonic plate boundaries known as what?
The Ring of Fire
400

What is a composite volcano?

A volcano that is made up of layers of ash and lava.

400

Rock that contains more silica?

Rhyolite 

400

When tectonic plates collide and slip below each other, what is it called?

A subduction plate boundary.

500

What is molten rock below Earth's surface is known as?

Magma

500
What is a hotspot?
A hotspot is a fissure in the Earth's crust, in the middle of a tectonic plate, where volcanoes can form.
500

What is the name of a volcano that has steep sides but isn't very tall?

Cinder Cone volcano

500

Low Silica Rock, very dark 

Basaltic 

500
What is it called when tectonic plates move apart?
Constructive plate boundary.