How long ago did.....?

Today we created an evolutionary timeline and realized just how long ago things happened on the earth. Students took notes on a handout elaborating on some of the events on the timeline.

Homework: Answer the four questions on the handout. Please use a seperate sheet of paper.

Click here for an interactive timeline from PBS

Flash player is needed for this animation. If you don't have flash and don't want to download it you can view the non-interactive timeline here.