Geologic Time Scale

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Across
  1. 3. Forms as a result of a mold.
  2. 4. It means turning into a stone.
  3. 7. This means recent life.
  4. 10. This means ancient life
Down
  1. 1. Eon that began about 540 million years ago.
  2. 2. Show the activities of the organism.
  3. 5. Largest section in geologic timeline.
  4. 6. Layers of rock.
  5. 8. This means middle life.
  6. 9. These are made from the hard parts of plants and animal.