restless earth, 4

Connect: Spot the difference! Write a list of as many differences as you can between these 2

photographs

Big Picture: What are composite and shield volcanoes?

• Know the difference between composite and shield volcanoes.

• Be able to locate and describe the distribution of composite and shield volcanoes over the world.

• Create an information fact file of an example composite and shield volcano.

Shield and Composite Volcanoes

• Sierra Negra ,Galapagos Islands, Ecuador shield volcano

• Parinacota, located on the boarder of Chile and Bolivia

What is the definition of a shield and composite volcano?

• Shield Volcanoes have broad, gentle slopes. They are formed by lava building up in layers over many years. They tend to have more gentle eruptions and very fluid (runny) lava.

• Composite volcanoes have cone shaped and steep sides. They tend to have more explosive reactions (also known as stratovolcanoes) made up of lava and ash.

*Composite volcanoes are the ones you often see

in cartoons! Think composite= cartoon!

Today you are the researchers!

Your mission! To research living examples of shield and composite volcanoes across the world to create an information fact file.

Your briefing: • Activate: Use the recommended websites and your own independent research to build a fact file using PowerPoint…

• You can access the websites through the shared area.

• You can also access this presentation

on the shared area.

To complete your task successfully your fact file must meet your criteria for success…

• 1. Given a clear definition of what a shield and

composite volcano are and provided labelled diagrams of them.

• 2. Said what the main characteristics of a shield volcano are.

• 3. Said what the main characteristics of a composite volcano is.

• 4. Given an example of a shield volcano across the world and provided a map to show where it is located.

• 5.Given an example of a composite volcano across the world and provided a map to show where it is located. Demonstrate: Use the checklist on your sheets to make sure you include

all the important points.

Reflect: Did you complete the mission successfully?

• 1. Print off your fact file.

• 2. Use the criteria for success to mark your own work.

• 3. How many did you get out of 5? – Write your total onto your checklist.

‘2 stars and a wish’ your work!

Into the reflection box write down 2 things you think you did well and 1 thing you wish to improve…

For example…

I found an example of both a shield and

composite volcano and located them on a map

I gave clear definitions of what a shield and

composite volcanoes was.

I didn’t complete all 5 points on the criteria. I

could of used the recommended websites to help

me with this.