Continental Drift/Seafloor Spreading

Continental drift- the Theory that the continents are moving very slowly

Identify 4 evidences the helped prove the continents where moving and explain each one.

1. Identical fossils are found on different continents
2. They all look like they can fit together
3. Tropical remains are found in very cold climates
4.Scratches in the rocks called glacial striations are found in the jungle 


Seafloor Spreading- Magma is pushing up through the sea floor and solidifying making the "Mid-Atlantic Ridge

Identify 2 evidences that helped prove the sea floor was growing and explain each one.

1. The volcanic mountains found at the bottom of the ocean make more land when magma cools- how do you we know this? 

2. The further you get away from the volcanoes the older the rock