Evidences of continental drift
1. The continents look like a puzzle- The continents now look like they were all hocked together at one time because the look like they fit together.
2. Fossils- The animals that lived back then could only live in certain climates. For example this one animal could only live in fresh water and it can't swim very far. And this animal has fossils in Africa and in South America. That animal can't swim across the entire ocean and it can't be in salt water.
3. Climate- There are signs that in one time really hot places it was once cold. They figured that the continents have moved and the temperature has changed.
4. Landforms- There're are proof that one time the contents had moutons in some places and also had other landforms in some places and then when the continents move the move to weird places where they don't really belong.
Sea Floor spreading is when in trenches under water erupt with magma and the magma moves the land and it creates more and so it pushes the older mama farther away and make more floor. This happens in the mid- atlantic ridge, it an under water mountain range.
An evidence of this is the magnetic reversal it it when the iron magma hardens in a certain direction. right now ours points north and over time as the magma comes out it makes it around and millions of years from now the magnets could all point south.
What is a second evidence?
I thought your Blog was great and covered most of what we learned.
ReplyDeleteI liked how you explained your examples and I liked your pictures, it had a lot of what we learned.
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