Geological, biological, and climate evidence support the theory of plate tectonics and that the continents were once joined together in a supercontinent called Pangaea. Geological evidence includes the matching continental edges of South America and Africa and volcanic and earthquake activity. Biological evidence includes the fossil of Mesosauraus found in similar rock formations in both South America and Africa. Climate evidence includes matching deposits of limestone along the coasts of continents that were once joined.

1. What is the evidence for Plate
Tectonics?

2. Keywords to listen for:
Pangaea
Geological
Biological
Mesosauraus
Limestone
Convection Current

4. The Earth is not a solid lump of rock!

5. boy on a raft - dboy

6. Like a raft (crust) floating on a lake (mantle)
boy on a raft - dboy

11. If we can prove that Pangaea existed we are also proving that ...

13. Three sorts of evidence:

14. Three sorts of evidence:
Geological Evidence

15. Three sorts of evidence:
Geological Evidence
Biological Evidence

16. Three sorts of evidence:
Geological Evidence
Biological Evidence
Climate Evidence

17. Geological Evidence

19. The Continental Jigsaw: Fit of South America and Africa.

22. Volcanoes and Earthquakes

23. Biological Evidence

25. Mesosauraus

27. Climate Evidence

29. Limestone