http://www.youtube.com/watch?v=oNjRu6oQ4JEhttp://www.youtube.com/watch?v=gO2qYMsNHGk

c. 200 million years ago, continents were all together into Pangaea which means “All Earth”.

1. This theory became official in 1915 by

Alfred Wegener.

2. The word theory means that many accept

it, but it is not fact.

Evidence supporting theory includes:• The continents seem to fit together like pieces of

a puzzle.• Plant and animal fossils match on the coastlines

of Africa and South America.• Rock types in Africa and South America match.• The continents are still moving due to

earthquakes and movement of tectonic plates.

Life During the Ice Age

• About ¼ of the world was covered by glaciers.

• The Ice Age lasted for millions of years.

• It is theorized to have ended c. 16,000 B.C.

What continents were most affected?

North America, Europe, Asia, Antarctica

• Very little evidence was left behind.• Frozen wooly mammoths have been

found.

• Most forms of life were in temperate and tropical climate zones.http://www.youtube.com/watch?v=JXTkLOCrQqE

http://www.youtube.com/watch?v=W4gvxUlGNAs

• Glaciers covered half of Long Island.• The North Shore is rocky & hilly.• The South Shore is sandy and flat.

• Lake Ronkonkoma was formed by a glacier.