The Earth-Sun-Moon System Answers

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During which phase does Earth see more than half of the moon’s surface?

A
first quarter
B
third quarter
C
waxing gibbous
D
waning crescent
2
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During which moon phase do spring tides occur?

A
new moon and full moon
B
first quarter and third quarter
C
waxing gibbous and waning gibbous
D
waxing crescent and waning crescent
3

During which phase of the moon do neap tides occur?

A
full
B
gibbous
C
new
D
quarter
4

In which direction does the Sun appear to move across the sky?

A
from west to east
B
from east to west
C
from north to south
D
from south to north
5

Why do lunar and solar eclipses not happen every month?

A
Eclipses only occur during full and new moons.
B
Earth rotates around its axis faster than the moon.
C
The moon and Earth only travel through the penumbras.
D
The tilt of the moon’s axis does not allow for monthly alignment.
6

What occurs during a solar eclipse?

A
Earth is closest to the Sun.
B
There are small tides across Earth.
C
The moon’s shadow falls on Earth.
D
The moon is covered in Earth’s shadow.
7

Why do we see different phases of the lunar cycle?

A
As the moon rotates around its axis, different sides of it become visible.
B
As Earth rotates around its axis, people can see different sides of the moon.
C
As Earth revolves around the Sun, the moon is cast in different shadows by Earth.
D
As the moon revolves around Earth, the different amounts of the sunlit side faces Earth.
8

Look at the diagram of a solar eclipse.

Question illustration
A
1
B
2
C
3
D
4
9

How often do spring and neap tides occur?

A
twice a day
B
twice a month
C
every 27.3 days
D
every 24 hours
10

Study the image.

Question illustration
A
full moon
B
first quarter
C
waning gibbous
D
waxing crescent

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