DOL Lunar Phases Review 3-31-25

Which of the following best describes a new moon?

• The Moon appears fully illuminated.

• The Moon appears as a complete circle.

• The Moon's side facing Earth is not lit, making it seem invisible.

• The Moon appears as a crescent shape.

Tags

NGSS.MS-ESS1-1

During which phase of the Moon can you see it as a complete circle?

• Last Quarter

  
  

• Waxing Gibbous

• Waning Crescent

  
  

• First Quarter

  
  

• None of the above.

Tags

NGSS.MS-ESS1-1

The model represents the Moon in various 

positions in its orbit around Earth. 

Fill in the blank: The Moon 

would NOT be visible from 

Earth when the Moon is at Position

​ (a)   .

• A
• B
• C
• D
• E

Tags

NGSS.MS-ESS1-1

Click on the two crescent moons

Tags

NGSS.MS-ESS1-1

Part A

The graph below represents the lunar cycle over a 27 day period. The x-axis shows the time in hours while the y-axis shows the percent illumination of the Moon. The dots represent the lunar phases. 

What dot represents a Full Moon?

• A

• B

• C

• D

• E

Tags

NGSS.MS-ESS1-1

Part B

You should have chosen Dot B.

 Provide TWO pieces of evidence to support your answer.

Answer explanation

Dot B represents a Full Moon. During a full moon, the Moon appears to be 100% lit. The graph shows that the Moon is at 100% illumination at Dot B. In addition, the Moon is halfway through the lunar cycle at Dot B. Based on these two pieces of evidence, it is clear that the full moon occurs at Dot B.

Tags

NGSS.MS-ESS1-1