Key Question 3: The ‘Big’ Ideas in Geology Idea One- The Rock Cycle Idea Two- Plate Tectonics Idea Three- Global sea/ temperature changes

The Rock Cycle Key Question: What are the processes rocks undergo in the rock cycle? Key Words: Weathering / erosion Deposition Burial Compaction & Cementation Lithification Heat and Pressure Recrystallisation Melting Uplift

Listening Task Listen to the story and draw out a diagram of the rock cycle in pairs on your mini whiteboard

Toastie Rock Cycle What are the stages in making a tostie? How can they be used to show the stages in the rock cycle?

Stage 1 Grate the cheese This represents…. WEATHERING White = Granite and Yellow = Basalt

Stage 2 Move the cheese This represents…. Erosion

Stage 3 Lay down the bread on the tostie maker This represents…….. Original layers of sedimentary rock in the oceans

Stage 4 Add a slice of Ham This represents…….. DEPOSITION OF SHALE

Stage 5 Add two cheeses This represents…….. DEPOSITION OF SANDSTONE LAYERS

Stage 6 Add the top slice and give it all a press down This represents…….. COMPACTION, CEMENTATION and BURRIAL

Stage 7 Turn on the toastie maker and press down This represents…….. INCREASING HEAT AND PRESSURE

Stage 8 Leave for a few mins This represents…….. METAMORPHISM (Recrystallisation)

Stage 9 Leave for a few mins more This represents…….. Melting and magma formation

Stage 10 Cheese that sticks on represents… and cheese that spills out? ………….

Stage 11 Lifting out and eating This represents…….. Uplift and further weathering and erosion

In Pairs Construct a diagram of the rock cycle using the cards Add arrows to the A3 paper

Once Checked Make a neat copy for your book