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Seasons Science Test
For Ms. Manser's 7th grade science test.
16
Science
7th Grade
03/09/2011

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Cards

Term
Earth
a. revolves
causing b.
c. causing
years
Fill in the lettered/numbered blanks.
Definition
Earth
a. rotates revolves
causing b. around the sun
c. days and nights causing
years
Term
Movement of the earth around the sun once a year is called Earth's:
Definition
revolution
Term
A day when the sun reaches its greatest distance north or south of the equator is called a(an):
Definition
solstice
Term
What are the two major motions of Earth as it travels through space?
Definition
rotation and revolution
Term
Which motion causes day and night?
Definition
rotation
Term
What causes the seasons?
Definition
revolution and tilt of the Earth on its axis
Term
What are solstices and equinoxes? How are they related to the seasons?
Definition
solstices - two days of the year which the earth reaches its greatest point north or south
equinox - two days when the earth from the sun isn't pointing towards or away from the sun (12 hours of day and 12 hours of night)
both are the mark of new seasons
They cause the tilt of the Earth - making summer and winter
Term
How would the seasons be different if Earth were not tilted on its axis?
Definition
Temperature would always be constant and there would be no seasons.
Term
Explain how he length of the day and year are related to Earth's movement through space.
Definition
Day is how long the sun is shining, and year is the orbit around the sun.
Term
Mars's axis is tilted at about the same angle as Earth's axis. Do you think that Mars has seasons? Explain you answer.
Definition
Yes because it is angled.
Term
Perihelion
Definition
January 3rd
Earth is closer to the sun that during the aphelion
Term
Aphelion
Definition
July 4
Farther away than during the perihelion
Term
Tropic of Cancer
Definition
Above equator - 23.5 degrees above
Term
Tropic of Capricorn
Definition
Below equator - 23.5 degrees below
Term
Direct rays
Definition
when the suns rays are shining directly in one area
Term
Indirect rays
Definition
when the suns rays aren't shining in a direct area
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