1. The Tectonic Plates
L.O – To be able to name the different types of plate boundaries and explain how they shape the Earth’s surface.

2. How convection Currents work
Fill in the blanks in your book!
The ____ is the hottest part of the Earth. The magma that is near the core is _____up. This makes it ____.
As it rises up, it gets nearer the_____. The crust is cool. This ____the magma and the magma begins to ___back down.
When it gets back to the core it is heated up and rises again.
This happens over and over again in a________.
This movement is called a ________ _________. It is these currents that make the plates move.
convection current core circle heated drop rise cools crust

3. Tectonic Plates and Convection Currents
The crust is also broken up into tectonic plates, which ‘float’ on the mantle.
Heat rises from the centre of the planet, starting convection currents .
The currents are slow, but they push the plates in different directions, causing them to crash into one another or move apart. This is what causes volcanoes and earthquakes on the earths surface.

4. Types of Plate boundary
Convergent
Two plates move ________ each other. Where they meet, the heavier plate is __________ under the lighter plate.
Ocean to continent
Ocean to ocean
Continent to continent
towards
subducted

6. Convergent plate boundary - Ocean and Continental plates

7. Skill: Drawing an annotated diagram
What should a good diagram include?
Title
Drawn in pencil
Neat
Annotations (labels that explain)

8. Types of Plate boundary
Divergent
Two plates move ________ from each other and create new crust, usually in the middle of oceans.
apart

9. Divergent plate boundary

10. Divergent Two plates move apart from each other and create new crust, usually in the middle of oceans
apart

11. The Mid-Atlantic ridge
Sea Floor Spreading!
Fun Fact!
Did you know that the ocean floor in the Atlantic is growing by 3cm per year?
Can you see which of the following pairs of continents are moving further away from each other?
Europe and Africa
Europe and North America
South America and North America

12. Types of Plate boundary
Conservative
Two plates move ________ each other. No new plate is created or destroyed, and no landforms appear.
alongside

15. Collision boundaries occur when 2 plates of similar densities move together (i.e. a continental plate and a continental plate). This causes the material between them to buckle and rise up, forming fold mountains.
The Himalayas are an example of a chain of fold mountains. They have been formed by the African plate colliding into the Eurasian plate.
Collision Boundary

17. Homework Question
Describe the differences between divergent, convergent and conservative plate boundaries

18. Name this plate boundaryG A B E F D C
Match the labels to the letters
The oceanic crust sinks under the less dense continental crust
Earthquakes occur due to friction
Oceanic plate
The oceanic crust melts and rises
Mantle
Continental crust
Explosive volcanoes