Earth History

Edit Answers
123456789101112
Across
  1. 5. a scale of time used by paleontologists which is divided into periods of time
  2. 6. a period of history
  3. 8. the force of igneous rock between existing formations without reaching the surface
  4. 9. the exact order of previous events
  5. 10. the force of magma to the surface of Earth
  6. 12. the remains of life before us preserved in a petrified form
Down
  1. 1. rocks formed by the solidification of magma
  2. 2. this law states that the rock layer closest to the surface of Earth is the newest, and then furthest layer is oldest, as long as the layers are undisturbed
  3. 3. rocks formed from sediment
  4. 4. the relative order of previous events
  5. 7. scientists who study life previous to humans
  6. 11. a fossil used to define its time period