Earth & Sun Exam Review

What is a solstice?

• the day in Earth’s orbit that marks the beginning of spring or autumn

• the day in Earth’s orbit in which the Earth is tilted 23.5

• the day in Earth’s orbit that marks the beginning of summer or winter

• the day in Earth’s orbit when sunlight and darkness are of equal lengths

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Why are summer days hotter than winter days?

• The Earth’s spin on its axis is slower in the summer.

• The Sun produces more heat in the summer.

• The hemisphere experiencing summer is tilted toward the Sun

• The Sun is closer to the Earth in the summer part of its orbit.

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What separates the northern hemisphere and southern hemisphere?

• the equator

• the axis

• a body of water

• a land mass

When it is summer in the northern hemisphere, what season is it in the southern hemisphere?

• fall (autumn)

• winter

• summer

• spring

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What causes the different seasons on Earth?

• The Earth is moving towards the Sun.

• The Earth is moving away from the Sun.

• The Earth is tilted 23.5° on its axis.

• The Earth's atmosphere changes in thickness.

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How long is an Earth’s rotation?

• 30 days

• 365 days

• 24 hours

• 12 hours

What is the Earth’s axis?

• an imaginary line drawn around the Earth halfway between the poles

• an imaginary line drawn through Earth’s center

• an imaginary point on the Earth showing where magnetic north is located

• an imaginary line drawn around the Earth at ±23.5° latitude

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Why is there a leap year every four years?

• to account for the one-fourth day at the end of each of Earth’s revolutions

• to make sure the seasons are of equal length

• to make up for the tilt of Earth’s axis as the planet orbits the Sun

• to remind people that the Earth revolves around the Sun

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How can the Earth’s movement be explained?

• The Earth cannot spin on its axis and orbit around the Sun at the same time.

• Earth moves one revolution and then moves one rotation around the Sun.

• Earth stops every one-fourth of a year to shift its axis towards the Sun.

• The Earth spins on its axis, and it orbits around the Sun at the same time.

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What is the longest day of the year known as?

• winter solstice

• fall equinox

• lunar eclipse

• summer solstice

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