Vocabulary
The _________ includes the sun and all the planets
solar system
The Earth's _________ is an imaginary line that runs from one pole through the Earth's center to the other pole.
axis
What is the scientific theory for the formation of the Earth?
Clouds of gas and dust were drawn together
How long does it take for the Earth to make one complete revolution around the sun?
365 1/4 days or one year
What is a time zone?
An area in which the same time is used
The Earth moves in a closed, curved path called an _____________
orbit
A line that runs east to west on a globe is a _______
line of latitiude
About how long ago did the Earth form?
About 4.5 billion years ago
What is the difference between the Earth's rotation and its revolution?
The Earth rotates on its axis every 24 hours and revolves around the sun every 365 1/4 days
What are the four major time zones in the United States?
Pacific, Mountain, Central, Eastern
The Earth has seven large landmasses called ________
continents
The _________ is the 0 degree line of longitude
prime meridian
Why is the Earth sometimes called the "water planet"?
Water covers so much of the planet
Where is the equator located?
Halfway between the North and South poles
If you cross time zones traveling east, how does time change?
You gain one hour for each new time zone.
The ____________ is the middle layer of the Earth.
mantle
The ___________ is the third planet from the sun.
Earth
What are the three layers of the Earth?
crust, mantle and core
In what direction do lines of latititude run?
East to West
The ocean floor is part of the Earth's _____________
crust
The ocean closest to New York state is the ___________ Ocean.
Atlantic
On which layer do you live?
crust
In what direction do lines of longitude run?
North to south