Patterns of Earth and Its Moon

The moon’s appearance changes in specific and observable patterns called phases. How often does this pattern of phases repeat?

• Approximately every 28 days.

• Approximately every 24 hours

• Approximately every 365 days.

• Approximately every 12 hours.

Which moon phase is shown in the picture below?

• New Moon

• First Quarter

• Full Moon

• Last Quarter

In which phase does the moon appear fully lit by the Sun’s light when observed from Earth?

• Full Moon

• Last Quarter

• Waxing Crescent

• First Quarter

Which best describes Earth’s axis?

• Earth’s axis is an imaginary line drawn around Earth from the North Pole to the South Pole.

• Earth’s axis is an imaginary line drawn around Earth that is the same distance from the North and South Poles.

• Earth’s axis is an imaginary line drawn around the United States of America.

• Earth’s axis is an imaginary line that runs from the North Pole through Earth’s center to the South Pole.

What causes the moon to appear this way?

• The moon is moving into the shadow of Earth.

• The moon is illuminated by the Sun’s light.

• The moon is moving away from the shadow of Earth.

• Light produced by the moon is reflected by Earth.

What is happening if you watched the moon for a week and observed that the visible portion of the moon was getting smaller every night?

• The moon was growing.

• The moon was waning

• The moon was eclipsed.

• The moon was waxing.

Which of the following describes the moon’s pattern of movement?

• The moon rotates as it revolves around Earth.

• The moon only rotates.

• The moon does not move.

• The moon only revolves around Earth.

Mary, Sue, and Joe made a model of the Earth, Moon, and Sun. The globe was spunto model how Earth rotates on its axis. What observations can be made about this pattern of Earth’s motion?

• As Earth rotates on its axis, one side of the planet does not receive light rays from the Sun and this phenomenon is called night.

• As Earth rotates on its axis, one side of the planet receives light rays from the Sun and this phenomenon is called day.

• A only

• A and B

The moon is completely dark in which phase when observed from Earth?

• Twin phase

• New Moon

• Full Moon

• Last Quarter

It takes 24 hours for Earth to complete one rotation – or spin completely around - on its axis.

• True

• False