Name:
Date:
1. Where do the “mineral grains” that made the Earth come from?
2. Grains of salt stick to each other when shaken around in 0 gravity. What does that mean can happen
to space dust?
3. What are the three layers of earth?
4. What caused the baby earth to get hot enough to melt?
5. Some people think the earth is bout 6 thousand years old. How did they get that idea?
6. Why are meteors a good way to estimate the age of the Earth?
7. How was the moon made? (This is Dr. Hartmann’s biggest success in science.)
8. Why is magnetite proof that the earth had oceans, even 4.28 billion years ago?
9. In your own words, describe some ideas about where Earth’s water came from.
10. Describe some ideas about how life on earth began. (Scientifically. We need evidence!)
11. What is an “amino acid?”
12. Cyanobacteria live in large colonies that look just like rocks! What important element do they create
that helped life develop on earth?
13. What are some resources that living things have turned into after they fossilized?
14. I’m curious- what fact or idea in this video stuck out the most to you? What made it stand out?