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What is the earth? What’s it made of? How do volcanic eruptions happen? What is an Earthquake? Progress checker.

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Presentation on theme: "What is the earth? What’s it made of? How do volcanic eruptions happen? What is an Earthquake? Progress checker."— Presentation transcript:

1 What is the earth? What’s it made of? How do volcanic eruptions happen? What is an Earthquake? Progress checker

2 It’s not just man that’s causing chaos!

3 Lesson objectives Explain what tectonic plates are Describe what volcanoes and earthquakes are and where they occur. Demonstrate that the earth is a changing environment that is constantly in flux.

4 Ring of fire

5 Tectonic plate demo Volcano demo Milky way demo

6 Sea floor spreading – an extension of seafloor spreading by plate tectonics moving with the extrusion of magma (constructive plate margins) Weathering - break down of rock into smaller particles at a site Erosion- weathered particles removed from site Heating and pressure – temperature increase and load exerting a force Sedimentation - Deposit of sediments Mountain building - plates converging (destructive) (subduction zones) forming rock peaks (mountains) Dissolving – to be soluble (in water) Key words and definitions

7 What is the earth? What’s it made of? How do volcanic eruptions happen? What is an Earthquake? Progress checker

8 Success criteria for first part of 2D.P9 You must describe; The structure of the Earth. All the layers! Plates tectonics and volcanic eruptions and how these factors influence the Earth’s crust. This is a nice website for plenty good info. s/tectonic_plates_rev1.shtml Happy postering!

9 What is the earth? What’s it made of? How do volcanic eruptions happen? What is an Earthquake? Progress checker

10 Lesson objectives Explain what tectonic plates are Describe what volcanoes and earthquakes are and where they occur. Demonstrate that the earth is a changing environment that is constantly in flux.


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