How is the Earth like a broken cookie?

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Presentation transcript:

How is the Earth like a broken cookie? Tectonic Plates How is the Earth like a broken cookie?

Continents of the Past “Pangea” : exists ~ 225 million years ago Super continent: the only continent on Earth Division of Pangea ~ 135 million years ago Into “Laurasia” (N. Hem) Included modern North America & Eurasia And “Gondwana” (S. Hem) Included modern South America, Africa, Antarctica, Australia, Madagascar, India and New Zealand

250 Million Years Ago

200 Million Years ago

135 Million years ago: The Jurassic Period

65 Million years ago

Present day Inner Core: solid iron (Fe) and Nickel (Ni).

In 50 Million years

In 150 Million years

In 250 million years

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