Tuesday, September 22, 2009

fossil homework

I believe this fish is a mold and cast because it is an imprint on a rock instead of being the regular bone or the mineral.


















This fossil is an example of replaced remains because it's still being dug up and it been slowly replaced by rock minerals and now is a rock instead of a bone.

Monday, September 21, 2009


Three is first because it is a cross-cutting relationship.
One is next because of superposition.
Then six because its below 1 and in superposition whatever is on top is the youngest.
After that is two because it is a cross-cutting relationship and sense it's that its younger than all the surrounding layers.
Then it's five because of superposition.
Finally it's four because it's the lowest layer that's not a cross-cutting relationship layer.

Wednesday, September 16, 2009

Homework

  • Bob is born
  • Bob loses his first tooth
  • Bob is tall enough to ride the roller coaster
  • Bob starts middle school
  • Bob gets his driver’s license
  • Bob graduates from high school
  • Bob joins the Marines
  • Bob gets married
The ones that could be in different places are being tall enough to be on a roller coaster, getting his driver's license, joins the marines, and gets married.
It's not possible to know because you can marry at any age. If I had to guess I would guess 22 so he could go right out of high school to the marines, then come home and get married