Volcanoes

Front

What is molten rock that has formed deep within the Earth?

Back

Magma

Front

What is molten rock that has reached the Earth's surface?

Back

Lava

Front

What factors determine whether a volcanic eruption will be explosive?

Back

The amount of gas and silica in the magma

Front

As magma rises towards the surface it collects in a 'room' called a _____ _____ .

Back

magma chamber

Front

Where are volcanoes found? Options: on land, under water, on islands, all of the above

Back

all of the above

Front

Where is the largest volcano? Options: Africa, Indonesia, Wyoming, Hawaii

Back

Hawaii

Front

Where are most volcanoes found? Options: Southern Hemisphere, Ring of Fire, Mid-Atlantic Ridge, Hot Spots

Back

Ring of Fire

Front

What is / are sign(s) that a volcano may erupt soon? Options: Earthquake activity in the area, Changes in the shape of the volcano, Different amounts of gas being produced.

Back

All of these are signs

Front

Volcanoes that have recently erupted are known as:

Back

Active Volcano

Front

A volcano that has erupted in the last 2000 years but not recently is known as....

Back

Dormant