What is it and what evidence supports it?What is it and what evidence supports it?

http://3dparks.wr.usgs.gov/nyc/images/fig83.jpg

Look at the globe for today’s world… do you believe itcould have been like this?

Evidence 1 – Continents fit together like a puzzle

Why weren’t Wegener’s ideas accepted?• They wanted more…EVIDENCE to explain.

Wegener’s biggest problem was explaining Wegener’s biggest problem was explaining how the continents could have moved! how the continents could have moved!

Alfred Wegener gets most credit for the idea that the continents have moved to their current locations…

???? ?? ?? ??

How can you map something so far away?How can you map something so far away?

You can’t just dive down there…You can’t just dive down there…

Evidence 2Evidence 2

Using sound waves to find the distance to objects

http://pubs.usgs.gov/publications/text/baseball.html

Evidence 2 – Finding of ridges Evidence 2 – Finding of ridges or “seams” in the ocean flooror “seams” in the ocean floor

http://pubs.usgs.gov/publications/text/baseball.html

Evidence 3Evidence 3

Evidence 4Evidence 4

Evidence 5Evidence 5

http://www.aic.cuhk.edu.hk/web8/world%20map.jpg

Long before

Volcano LocationsVolcano Locations

So that’s cool and all… but So that’s cool and all… but how could the continents how could the continents

have moved???have moved???