week 9 science 2

 The big question addressed in lab, and a description of what you did.

We talked about when things appeared/were created on earth. 

our table groups timeline: 

4000 mya oldest rock on earth 

3400 mya 1st life on earth 

2400 mya great oxygenation event 

470 mya first land plants 

200/300 mya pangea formed 

A description of what you learned in Thursday's lecture.

we took an exam during lecutre. 

Answer questions about the weekly textbook reading

What did you learn? 

For the text book reading, I completed the practice quiz for our exam. 

I learned about the history of the earth by looking at it represented on a clock. It was a different perspective and showed how spread out everythig really is. Humans were not on Earth until close to midnight on the clock example while rocks formed on earth occured so long ago (billions of years) 

What was most helpful?

The graphics were extremely helpful and descriptive when looking at earths timeline, it was nice to see it in a circle picture version instead of the long time line we did in class. Showed different representations. 

What do you need more information on?

More information on Snowball Earth would be helpful, I still do not understand why it happened. Was the earth one big ice cube? Is that what that means? 

What questions/concerns/comments do you have?

I find it really interesting to learn about how earth moved Pangea and how some animals and plants are similar one contienents coast lines.