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Earth's timeline

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PRESENTATION OUTLINE

1.

EARTH'S WONDERFUL TIMELINE

BY: Katie Zim
2.

FORMATION OF EARTH

FORMED ~4.6 Ga (billion years)
3.

FORMATION OF THE MOON

FORMED ~4.5 GA YEARS AGO
4.

FORMATION OF THE OCEANS

FORMED ~4.4 GA YEARS AGO
5.

FIRST ORGANISMS CYANOBACTERIA

APPEARED ~3.6 GA YEARS AGO
6.

FREE ROAMING OXYGEN IN EARTH'S ATMOSHERE

ROAMING SINCE ~2.0 GA YEARS AGO
7.

FRIST SHELLFISH AND CORALS

APPEARED 550 MA(MILLION) YEARS AGO
8.

FIRST FISH

SWAM SINCE 460 MA YEARS AGO
9.

FIRST LAND PLANTS

APPEARED 440 MA YEARS AGO
10.

FIRST INSECTS

APPEARED 410 MA YEARS AGO
11.

FIRST REPTILES

ROAMED 340 MA YEARS AGO
12.

FIRST MAMMALS

ROAMED 210 MA YEARS AGO
13.

PANGEA BEGINS TO BREAK UP

BROKE UP 200 MA YEARS AGO
14.

PLEISTOCENE AGE BEGINS

BEGINS 1.8 MA YEARS AGO
15.

GREAT LAKES FORM

FORMED 10,000 YEARS AGO
16.

THE END

Katie Z