What happens at the plate boundaries?

Homelearning

How were the Hawaiian Islands formed?

Include diagrams and an explanation.Must be completed in your exercise book

Use the following links:

http://www.bbc.co.uk/science/earth/surface_and_interior/lava#p00gtrzw

By the end of the lesson:

All pupils will be able to explain what happens at 4 different plate boundaries

All pupils will take part in a carousal activity

All pupils will understand how volcanoes are formed and the different types that exist.

Connector

Swap books

Read each others homework

WWW

EBI

A tectonic landform

What are Volcanoes and how are they formed?

A volcano is an opening or vent in the earth’s surface through which molten material erupts and solidifies as lava.

Volcanic vent

What is a volcano?

Crater Volcanic bombs, ash and gases

Main vent

Parasitic cone

Magma chamber

Cross section of a volcano

Active volcano – liable to erupt e.g. Mt Etna.

Dormant (sleeping) volcano – a volcano which has not erupted for many years. For example, Mt Pinatubo erupted in 1991 after 500 years of dormancy.

Extinct volcano – a volcano which has not erupted for many thousands or millions of years e.g. Edinburgh.

However, it is often very difficult to tell whether a volcano will erupt again…El Chichon, Mexico erupted in 1982 after being dormant for approximately 1200 years!

Do all volcanoes erupt?

Around which plate do we find most volcanoes?

Where are volcanoes found?

Volcano shapes

Why do volcanoes have different shapes?

In groups you will go to each station and complete your task sheet.

Station 1: Nazca and South America

Station 2: Eurasian and North America

Station 3: Indian and Eurasian

Station 4: North America and Pacific

You will need to complete the plate tectonic sheet

and the volcanoes sheet.

You will have 10 mins at each station

At the end of the lesson you will be asked to present information about what you have learnt.

Help with your homework

See slides below

The Hawaiian islands are a chain of volcanoes in the Pacific Ocean.

Hawaii

Look at their location on the map below. Why is this an unusual place for them to be located?

Hot spot volcanoes

In the animation above, why are the volcanoes to the left of the ‘hot spot’ extinct?

Volcanic bombs, ash, lava, gases

Magma chamber

Parasitic cone

Crater

Main vent

Label this cross section of a volcano

To finish

Solve the following anagrams.

1. eonratvces2. qaakeehrt3. liioonscl4. tosevucntri5. testcudrevi

Which is the odd one out? Why?