Volcanoes: Mountains of Fire

What is magma?

• hot rock that reaches the Earth's surface

• hot liquid rock beneath the Earth's surface

• the volcanoes opening that let's the magma flow to the surface

• a steep-sided hole at the top of the volcano

What is lava?

• hot rock that reaches the Earth's surface

• hot liquid rock beneath the Earth's surface

• the volcanoes opening that let's the magma flow to the surface

• a steep-sided hole at the top of the volcano

What is a volcanic crater?

• hot rock that reaches the Earth's surface

• hot liquid rock beneath the Earth's surface

• the volcanoes opening that let's the magma flow to the surface

• a steep-sided hole at the top of the volcano

What is the vent?

• hot rock that reaches the Earth's surface

• hot liquid rock beneath the Earth's surface

• the volcanoes opening that let's the magma flow to the surface

• a steep-sided hole at the top of the volcano

Why does light-colored magma cause volcanic explosions?

• fragments blasted into the air that are 5 mm or larger

• it does not contain much water, hardens in the vent and blocks the flow which lets steam and magma build up pressure

What are volcanic bombs?

• fragments blasted into the air that are 5 mm or larger

• it does not contain much water, hardens in the vent and blocks the flow which lets steam and magma build up pressure