Match up the Main Features of a Volcano to Their Definitions

The Main Features of a Volcano

Task 2

Match up the main features of a volcano to their definitions.

A special type of volcano

This is a special type of volcano, called a Composite Volcano. It’s name is to do with the way that it is made.

A composite volcano gets bigger and bigger the more it erupts.

The ash and the lava from each eruptions forms layers.

These layers make new rock which makes the volcano bigger and bigger.

Task 3

Turn back to your drawing of the main features of a volcano and add these labels:

Layer of Ash

Layer of Lava

Composite Volcano

Plate Tectonics

The surface of the earth is covered by a rock crust. This crust is made up of lots of pieces we call Tectonic Plates. The picture above shows where all the plates are.

Task 4

Can you find the France?

Which plate is it on?

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Is it near the edge of this plate?

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Iceland

Iceland is an island that sits right on a plate boundary.

The pink line is the boundary between the two plates.

All those red triangles are volcanoes.

The Ring of Fire

This picture shows the ring of fire.

The ring of fire is a whole set of volcanoes that are around the edge of the Pacific Plate.

All of those red triangles are volcanoes that are on the edge of that plate.

What causes Volcanoes?

Volcanoes are caused when boiling hot (molten) rock is pushed up from the centre of the earth and escapes through a plate boundary.

Over a long time, all the ash and lava from the eruption piles up, making rock and a mountain.
Task 5

Colour the true statements one colour and the false statements a different colour

What are the effects of Volcanoes erupting?

This is a picture from the aftermath of an eruption in 1997 on a Caribbean Island called Montserrat. It has been buried by ash.

Watch this eclip to see more pictures of the effects from this eruption.

http://www.bbc.co.uk/wales/eclips/pages/eng_11to16_geo_volcanoes_destruction.shtml

Task 6

Try to imagine what happens when a volcano erupts.

Make a list of things you think might happen and what might be damaged by them

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Task 7

Use the internet to find 3 pictures of different things destroyed by volcanoes, including one of a lava flow.

Why would anyone live near a volcano?

This is the Blue Lagoon Thermal Spa in Iceland – it has water temperatures of 40°C all year around. The water is heated by the molten rock that bubbles just below the earth’s crust. This is an extremely popular tourist attraction and lots of visitors go to Iceland every year just to visit these spas.

Other advantages of living in volcanic areas:

Geothermal energy can be useful for more than just tourist attractions.

It’s green and renewable.

Farming below a volcano can be really good, because the volcanic soil can produce very good crops.

Good or Bad ?

Task 8

Colour the advantages stated here in green and the disadvantages in red

Tas

Task 9

Use the information above to help you decide what you think about the good and bad things of life near a volcano. Then answer this question: Would you live under a volcano? You must give reasons.

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