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7_BartonErica_EarthGeoTimeSacleReview

Published on Nov 21, 2015

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PRESENTATION OUTLINE

1.

EARTH REVIEW

BY- ERICA BARTON
Photo by Jsome1
2.

EARTH

  • Earth formed 4.6billion years ago.
  • There was the ocean with trilobite in it.
  • And there was also bacteria.
Photo by angela7dreams
3.

EARTH REVIEW

BY- ERICA BARTON
Photo by Jsome1
4.

AS TIME WENT ON...

  • Animals started getting bigger.
  • More living things were on earth.
  • Most periods ended with historical events.
  • Life starts to become more complex.
Photo by Sprengben [why not get a friend]
5.

WHERE WE ARE TODAY.

  • We are still in the Quaternary period.
  • That period started 2.6 mya.
  • Sharks, whales, tigers, squirts came to earth.
Photo by NOAA Great Lakes Environmental Research Laboratory

Holly Steele