Monday, October 27, 2008

Timelines and Life on Earth

Today in class we reviewed the online assignment from Thursday and Friday. There are 4 key concepts that we can take away from this assignment
1. The Earth has changed in its 4.5 billion year history and we need to understand these changes if we are to understand how life has evolved on the Earth
2. There are some living things that have remained unchanged for billions of years
3. There are some living things that became extinct after millions of years
4. The diversity of life increases as we move forward through time.

We then talked about the characteristics of living things

There will be a quiz on the timelines and on the characteristics of living things on Thursday.

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