Expectations Take pride in your work Try your best Do your homework Show respect Bring all equipment Ask for help! Moodle: Geography > KS4 > Year 10

What you are going to learn: AQA Geography A (from 2014) Unit 1: Physical Geography 37.5% The Restless Earth (A) Rocks, Resources and Scenery (A) Water on the Land (B) Ice on the Land (B) 1.5 hr exam in 2014 – three questions: one from section A, one from section B, one other. Unit 2: Human Geography 37.5% Population Change (A) Changing Urban Environments (A) Tourism (B) 1.5 hr exam in 2014 – three questions: one from section A, one from section B, one other. Unit 3: Local Fieldwork Investigation 25% (20 hours) Controlled assessment based on the title “Investigate changes in the cross profile(s) of a river”.

The key idea of the lesson is… By the end of the lesson you will… The Structure of the Earth The Earth’s crust is unstable, especially at plate margins. We will know about the structure of the Earth, distribution and characteristics of plates, and the contrasts between continental and oceanic plates. have a completed diagram showing the structure of the Earth. have a completed map to show the location of the plate boundaries. notes on convection currents and the characteristics of oceanic and continental crust.

How are these things alike?

Structure of the Earth Solid Iron-Nickel Alloy 5100 – 6378 km deep 1200 km thick ~ 5,000°C Liquid Iron-Nickel Alloy 2890 – 5100 km deep 2255 km thick ~ 4400°C Mostly solid (plastic) rock km deep 2900 km thick ~ °C Solid rock km deep 100 km thick Up to 200°C

Lithosphere and Asthenosphere Oceanic Newer (less than 200 ma) Denser Can sink Can be made and destroyed Example: Basalt Continental Newer (less than 200 ma) Denser Can sink Can be made and destroyed Example: Granite

The Plates

Convection Currents Convention Currents Mantle Crust Animation

The Structure of the Earth Match your cards to the right part of the diagram – Crust (oceanic and continental), Mantel, Outer Core, Inner Core. Use the cards to label your diagram of the Earth. Give your diagram a title. In your own words explain what convection currents are and why they are important. You may want to draw a diagram.

Evidence for Continental Drift FOSSILS have shown that the same animals are found on different sides of plate boundaries. Species that need certain climates are also found in places with different climates. ROCKS of the same type have been found on either side of the plates. Dating has shown they were formed at the same time. The patterns of MAGNETIC REVERSAL match on both sides of plate boundaries. Of course the plates also fit like a JIGSAW.

Evidence for Continental Drift

Evidence for Tectonic Theory Make a ‘mini-poster’ on a double page in your book to describe and explain the evidence for tectonic theory. Using page 104 and 105 in geog.1. and the diagram on page 9 of the GCSE textbook to complete the blank map of the plates to show the plate names and tectonic activity.

The key idea of the lesson is… By the end of the lesson you will… The Structure of the Earth The Earth’s crust is unstable, especially at plate margins. We will know about the structure of the Earth, distribution and characteristics of plates, and the contrasts between continental and oceanic plates. have a completed diagram showing the structure of the Earth. have a completed map to show the location of the plate boundaries. notes on convection currents and the characteristics of oceanic and continental crust.

Homework Answer the following questions in paragraphs: Why is the crust unstable? What are the 4 parts of the crust and what are they like? What are convection currents and why are they important?