earth science test
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24 Terms
Rotation
The spinning of the earth on its axis
Revolution
When an object travels around another object in space
Solstice
Sun is turning away from earth
Equinox
Equal day plus night plus time
Aphelion
Earths furthest point in orbit from the sun (away from the sun)
Perihelion
Earths closes point in orbit from the sun (near the sun)
When does northern hemisphere have the most daylight hours?
The summer solstice (June 21)
When does the southern hemisphere have the summer?
December
On June 21, direct rays hit which line of latitude?
The tropics of cancer
In December 21, direct rays hit which line of latitude?
The tropics of Capricorn
During an equinox, how are day and night hours different
They are equal
If earths tilt increased by 20 degree how would that affect out summer and winters?
Summer would become hotter and winter would be colder
What causes day and night?
The rotation of the earth on its axis
What causes the seasons?
The tilt
Why do we need a leap year every 4 years?
To account for the ¼ at the end of each year
What does the Foucault Pendulum prove?
The rotation of the earth on its axis
Why is July hotter than June in the northern hemisphere even though June 21 is the longest day
Seasonal lag
What direction does Earth rotate (looking down at the North Pole)
Counterclockwise
How long does one rotation take?
24 hours
How long does one Revolution take?
365.25 days
How long does it take our moon to revolve around the Earth one time
1 month
Waxing moon
Gains light
Waning moon
Losing light
The moon always grows form the
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