Correction on slide 7- IS hould be Is Brief summary of each of the layers As a handout, play dough models of the Earth will be handed out containing layers for people to cut in half and stick labelled toothpicks in each of the layers

1. LAYERS OF THE EARTH
Micro Teach Session

2. LAYER 1: INNER CORE
• Right in the centre of Earth
• Contains solid metal
• Hottest layer
• It is about 5000-6000 degrees Celsius

3. LAYER 2: OUTER CORE
• 2200km thick
• Made of melted magma
• Heat from inner core melts metal in outer core
• 4000-5000 degrees Celsius

4. LAYER 3: LOWER MANTLE
• 1,400 miles thick
• Further from the core is more rigid
• Fluidity and convection cause seismic activity

5. LAYER 4: UPPER MANTLE
• 670km below the Earth’s surface
• Combination of solid and melted rock
• Contains iron, oxygen, silicon, magnesium and
aluminum
• The layer directly beneath the crust

6. LAYER 5: CRUST
• Around 23 degrees Celsius
• The layer species live on
• Solid layer
• Oceanic crust: granite, sedimentary and
metamorphic rock
• Continental crust: up to 70km thick
• Thinnest layer

7. LAYER 6: ATMOSPHERE
• Non-physical layer
• Gaseous layer around the Earth
• IS in place because of the force of gravity

8. ALL THE LAYERS