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The Earth formed in 4600 MA from a cloud of gas & dust.

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The Earth formed in 4600 MA from a cloud of gas & dust.

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How the Earth was formed - The Power of the Planet - BBC Two

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In 1936, the Earth's core was discovered after years of debate and research.

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In 1936, the Earth's core was discovered after years of debate and research.

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The idea of the Earth's core had been proposed 20+ years earlier.

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Sometime earlier than 650 Mya, it is thought that the Earth was nearly entirely frozen!

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When Earth was first formed it was a solid ball of molten rock with no atmosphere. The atmosphere or air we now breathe was formed after the development of the first living things, blue-green algae, that appeared about two billion years ago.

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Dinosaur fossils were found 1676 by Reverand Plot

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Dinosaur fossils were found 1676 by Reverand Plot

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This video shows our Earth 180 million years ago to present day!

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Pangea Breakup and Continental Drift Animation

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In 1915, Continental Drift was first proposed 

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In 1915, Continental Drift was first proposed 

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Alfred Wegener stated that the Earth's crust slowly drifts atop the Earth's liquid core. At this point, people did not know there was a liquid core.

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First recorded weather radar observation- 1953
WWII military radar operations noticed weather effecting the noise

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Seventy-five percent of Earth's surface is covered by oceans

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In the 1960's, the Theory of Plate Tectonics was developed. This theory explains the movement of the earth and explains earthquakes, volcanoes, and other geologic phenomenon

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The discovery of gold in MN led to the 1865-1866 Vermillion Gold Rush. Miners of history have moved all over the U.S. to try and "make it big"!

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This is caused by the nickel-iron core of the planet, combined with its rapid rotation. This field protects the Earth from the effects of solar wind.

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Earth is the densest planet in the Solar System

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Earth is the densest planet in the Solar System

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Earth Doesn’t Take 24 Hours to Rotate on its Axis

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Earth Doesn’t Take 24 Hours to Rotate on its Axis

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It actually takes 23 hours, 56 minutes and 4 seconds

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In 1876, Photovoltaic Energy (solar cells) was discovered. William Grylls and Richard Day discovered that when selenium was exposed to light, it could create energy.