Earth Properties

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Earth Properties
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What are some properties of the Earth that can be
observed or measured?
Shape
Size
Scale of features
System of location
Motions
Major Earth Zones
Exact shape
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What are Earths major zones?
Lithosphere
Atmosphere
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Hydrosphere
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Scale of Zones
At first glance the earth surface may seem very
rugged
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However, the line showing a drawing of the Earth
below would contain all of the features in the
previous slide
All zones within this line
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Although Mt. Everest may seem very tall when
observed from ground level
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The mountain would easily fit within the black
line outlining the earth below
Likewise, the Marianna Trench would also fit
within the line
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Lets look at the atmosphere
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Our atmosphere is also very thin compared to the
size of Earth
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The thickness of our atmosphere shown here is
exaggerated 3 times
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Reference Sheets Graphs show 3 properties of
atmosphere with altitude
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Inside Earth
Inner Core
(outer)
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Earths Interior From Reference Sheets
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But how could early man see evidence for A round
earth
From this satellite view our Earth appears round
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Evidence of Earths Shape
Earths shadow
A lunar eclipse
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Bonneville Salt Flats
Earths surface
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Parallel lines of sight
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If Earth were flat
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Altitude of Polaris latitude
W
60º
S
N
E
Latitude 60º
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Review of terms
horizon altitude zenith Polaris - latitude