Geography - The natural environment

What is a volcano

It is an opening in the ground where magma forces its way to the surface

What is magma

It is a molten rock that is found beneath the earth’s crust

What is lava

It is magma that reaches the earth’s surface

What is a magma chamber

A collection of magma inside the Earth, below the volcano.

What is the man vent

The main outlet for the magma to escape.

What are secondary vents

Smaller outlets through which magma escapes.

What is a crater

It is created after an eruption blows the top off the volcano.

What are the 3 stages of volcanoes

1. Active

2. Dormant

3. Extinct

What is an active volcano

A volcano that has erupted recently, and there is the possibility

that it may erupt again.

What is a dormant volcano

A volcano that has not erupted for a long time, however, it may

still erupt in the future.

What is an extinct volcano

A volcano that has erupted thousands of years ago, but it will probably never erupt again.

What are the 2 main types of volcanoes

Composite and shield volcano

Features of a composite volcanoe