AnswersAZ-Earth and Space Science AThe Earth-Sun-Moon System

Lesson 9.5 The Earth-Sun-Moon System Answers

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1
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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
2
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Study the image.

Question illustration
A
3 and 5
B
5 and 9
C
6 and 12
D
9 and 12
3

Study the image.

Question illustration
A
full moon
B
first quarter
C
waning gibbous
D
waxing crescent
4

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.
6

During which phase of the moon does a lunar eclipse occur?

A
full moon
B
third quarter
C
waxing gibbous
D
waning crescent
7

Study the image.

Question illustration
A
full moon
B
first quarter
C
waning gibbous
D
waxing crescent
8

Which movement causes day and night on Earth?

A
rotation of Earth
B
revolution of Earth around the Sun
C
Earth’s elliptical orbit in space
D
moon’s orbit around Earth
9

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
10

What does Earth’s rotation on its axis cause?

A
the tides
B
night and day
C
passing of years
D
phases of the moon
11

Study the image.

Question illustration
A
3 and 5
B
5 and 9
C
6 and 12
D
9 and 12
12

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.
13

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.
15

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
16

Which term describes one kind of movement of Earth?

A
eclipse
B
revolution
C
tilted orbit
D
lunar cycle
17

Look at the diagram of a solar eclipse.

Question illustration
A
1
B
2
C
3
D
4
18

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

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