Vocabulary
People
Seasons
Day and Time
Other
100
What is an ellipse
An oval-shaped path
100
Who is Copernicus
What scientist proposed a model of the solar system in which the earth revolves around the sun?
100
What is the earth's axial tilt
What causes season changes on earth?
100
What is earth's rotation
Upon what is our solar system of telling time based?
100
What is 23.5
How many degrees is the axial tilt of earth?
200
What is revolution
The movement of one object in an orbit around another object
200
Who is Copernicus
What scientist introduced the heliocentric model of the solar system?
200
What is the day of summer solstice
On what day does the Northern Hemisphere have the most hours of daylight?
200
What is 24
How many time zones are set up around the world?
200
What is the equal average distance between earth and sun
What is an AU?
300
What is rotation
The turning of an object
300
Who is Kelper
What scientist discovered he correct shape of the planets' orbits?
300
What is winter
During which season does earths perihelion occur?
300
What is 7
The U.S. has how many time zones?
300
What is 93 million miles
What does 1 AU equal?
400
What is axial tilt
The angle that a planet's axis is tilted from vertical
400
Who is Galileo
What scientist used a telescope to see that the sun was the center of the solar system?
400
What is the point in a planet's orbit when its farthest from the sun
What is aphelion?
400
What is has a different period of rotation
Daytime on each planet lasts for different amounts of time because each planet what?
400
What is 24 hours
How long does it take earth to make 1 complete rotation?
500
What is an orbit
The path an object takes as it revolves around another object
500
Ptolemy
What scientist had a theory that the earth was in the center of the universe?
500
What is each of these planets has almost no axial fit.
Why don't Mercury, Venus, and Jupiter have season?
500
What is the amount of time it takes the planet to orbit the sun
How do we define the length of a year for a planet?
500
What is 365.25 days
How long does it take earth to make 1 complete revolution?
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