1.1 Describe the formation and global distribution of volcanoes, earthquakes and fold mountains in the context of plate tectonics and structure of the earth.
SOL 16: Describes, illustrates, interprets, predicts and explains patterns and relationships.
Dynamic Earth Learning Intentions
You will be able to: „„
Name and describe the layers of the earth.
„„Explain what crustal plates are, and why they move. „„
Describe what happens when plates separate, collide or slide past each other.
1.1 Our Moving Continents
The earth did not always look like it does today. Over 250 million years ago, the continents were all connected as one large landmass, known as Pangaea. Over time, the continents broke apart and moved. This process is known as continental drift.
Key Words Pangaea
Continental drift Crust Core
Mantle Molten Plates Colliding Separating Sliding Magma
Convection currents
This image shows a scuba diver swimming in a crack between Europe and North America in the Atlantic Ocean. What do you think might be causing the continents to pull apart like this?
