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Lunar, Eclipse, and Tides
Buckeye Valley Middle School 8th grade quiz
28
Science
8th Grade
04/17/2013

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Cards

Term
Definition of solar eclipse?
Definition
the earth moves into the shadow of the moon
Term
When does a solar eclipse take place?
Definition
during a new moon
Term
Draw a picture of a solar eclipse...
Definition
Term
Definition of a lunar eclipse?
Definition
moon moves into the shadow of the earth
Term
When does a lunar moon take place?
Definition
during a full moon
Term
Draw a picture of a lunar eclipse...
Definition
Term
How long does it take for the moon to revolve around the earth?
Definition
29.5 days
Term
In which direction does the moon revolve around the earth?
Definition
Counter clockwise
Term
How long does it take for the moon to rotate?
Definition
27.3 days
Term
What are the lunar phases?
Definition
New moon
Waxing crescent
First quarter
Waxing gibbeuos
Full moon
Waining gibbeous
Third quarter
Waining crescent
Term
Why does the seasons occur?
Definition
The seasons occur because the earth's axis is tilted as the earth orbits around the sun.
Term
How much of the moon is illuninated at all times?
Definition
Half but you can't always see it all.
Term
Define waxing?
Definition
Increasing
Term
When the moon is waxing, is it moving closer or further from the sun?
Definition
closer
Term
Define waining?
Definition
Decreasing
Term
When the moon is waining, is it moving closer or further from the sun?
Definition
further
Term
Define crescent?
Definition
Less than half illuminated.
Term
Where is the moon aligned during a New Moon?
Definition
Directly between the Earth and Sun.
Term
Where is the moon aligned during a crescent moon?
Definition
At a 90 degree angle.
Term
Define gibbous?
Definition
More than half illuminated.
Term
During a full moon, what is the alignment?
Definition
sun, earth, then moon
Term
What casues ocean tides?
Definition
gravitation force between the earth and moon
Term
When does a Spring Tide take place?
Definition
During New and Full Moons.
Term
Does a Spring Tide produce the greatest difference between high and low tides?
Definition
Yes- True.
Term
When does a Neap Tide take place?
Definition
During Quarter Moons.
Term
Why does a Neap Tide produce less of a differnce between high and low tide than a Spring Tide would?
Definition
Because it happens during quarter moons.
Term
Compare and contrast solar and lunar eclipses??
Definition
Alike-
They are both in the shadow of something.
They are both eclipses.

Different-
The solar eclipse goes between the earth and sun. (The sun is darkened.)
The lunar goes between the moon and earth. (The moon is darkened.)
Term
Why don't we get an eclipse every month?
Definition
The Moon's orbit is at an angle to the orbit of the Earth around the Sun.
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