Unit 8 Science Test December 6, 2016
Vocabulary
axis: an imaginary line the Earth spins around
revolution: the Earth’s complete trip around the
sun
tides: the changes in the height of ocean water on
Earth
waning: getting smaller
waxing: getting larger
Concepts:
The motion that causes the Earth to have four
seasons is called revolving.
A lunar eclipse happens when the moon is in the
full moon phase.
When you use a model of the moon’s phases, it
shows the changes in size and shape of the moon’s lit area.
The moon is full when it is on the side of Earth
away from the sun.
Know what the shape of a crescent moon looks like.
The two phases of the moon that look alike are the
first-quarter moon and third-quarter moon.
You can use photographs of the moon to show its
phases.
The sun lights one half of the Earth’s surface at
a time.
The motion of the moon around the Earth causes the
changes in the shape of the moon.
When your part of Earth points away from the sun
it is winter.
Long Answer:
*Know and be able to identify the 4 main moon
phases and the order they follow:
full moon, third-quarter moon, new moon, first
quarter (repeat)
These phases can be called quarters (1/4)
*Earth’s rotation on its axis causes the Earth to
have day and night.
*Would the phases of the moon look the same from
Mars? Why or why not? Be able to explain your answer.
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