Volcanoes

Volcanoes

• ​The word 'volcano' comes from the island ‘Vulcano’, which is a volcanic island in Italy.

• The island actually gets its name from the Roman god of fire – Vulcan.

Where Does the Word ‘Volcano’ Come From?

Roman mythology says that Vulcan lived in a volcano. As well as being the god of fire, he made many weapons and forged them using metal and fire. He was a very skilled blacksmith.

Romans believed that if Vulcan was made angry, the volcano would erupt. So they tried their best to please him and not anger him.

The Roman God of Fire

What even is a volcano?

A volcano is like Earth’s pressure valve, where magma, gas, and ash come bursting out! They form when magma from the mantle reaches the surface.


Notes: Jot down what a volcano does and what flies out of it when it erupts!

Word Cloud

Where do you think most volcanoes are located?

The Ring of Fire ​is home to 90% of the world's earthquakes and 75% of the world's volcanoes. It contains a string of 452 volcanoes.

​At divergent boundaries, tectonic plates pull apart, allowing magma to rise through the gap and create volcanic activity, e.g. Mid-Atlantic Ridge

Divergent

At convergent boundaries, one tectonic plate moves under another, creating magma that rises to form volcanoes, e.g. Mount St Helens

​​Convergent

Why does Hawaii have volcanoes?

Hotspot volcanoes break all the rules – they form in the middle of tectonic plates! A hotspot is a super-hot zone deep below Earth’s crust that melts its way up. They form a chain and the oldest volcanoes are further from the hotspot.

Notes: Explain why hotspot volcanoes form chains.

Match

Match each volcano with its location type:

• Mid-Atlantic Ridge

• Mount St Helens

• Hawaii Islands

Divergent

Convergent

Hotspot

• Divergent

• Convergent

• Hotspot

Match

Match the following stages of a volcano's lifecycle to their definition.

• Active

• Dormant

• Extinct

Erupts often, with recent activity.

Inactive now but could erupt again.

No eruptions expected, long inactive.

• Erupts often, with recent activity.

• Inactive now but could erupt again.

• No eruptions expected, long inactive.

Categorize

Options (9)

Plates pull apart

Magma rises to fill the gap

Creates less explosive eruptions

Plates collide

One plate moves under another

Creates explosive eruptions

Located away from plate boundaries

Magma rises from a stationary hot zone in the mantle

Can form chains of islands as plates move

Drag each characteristic to the correct volcano type.

Divergent

Convergent

Hotspot

Fill in the Blanks

The volcano life cycle stage where eruptions are unlikely to occur again is called

.