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Moon Shapes for Four Weeks is a free printable Grade 1 science worksheet on describing and predicting the moon's changing shape from a class diary, aligned to NGSS performance expectation 1-ESS1-1. It prints 7 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 9 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Moon Shapes for Four Weeks

1-ESS1-1

NameDate

Read the record, then answer the questions.

1.Read the record, then answer the questions.

Moon Shapes for Four Weeks

Drawings the class made of the moon, one each week for four weeks. THE MOON WE DREW Week 1: a thin curve, like a fingernail Week 2: half a circle Week 3: a full round circle Week 4: half a circle again, the other side We drew it at the same time each week.

  1. 1. What claim does this record support?
  2. 2. What shape was it in week 1?
  3. 3. What happened to the moon's shape over the four weeks?
  4. 4. What shape was the moon in week 3?
2.Can the moon sometimes be seen in the daytime?
  • A.No, never
  • B.Only in winter
  • C.Yes, on some days it is in the sky with the sun
3.What do we call the moon when it is a full round circle?
  • A.A new moon
  • B.A half moon
  • C.A full moon
4.Why is a moon diary useful?
  • A.It shows the pattern, so you can predict the next shape
  • B.It shows how far away the moon is
  • C.It makes the moon change
5.The moon is a thin curve and getting bigger each night. What shape comes next?
  • A.Half a circle
  • B.A square
  • C.A thin curve again
6.You know today's moon shape. What can you do with the pattern?
  • A.Predict tomorrow's weather
  • B.Predict the shape you will see next week
  • C.Make the moon full sooner
7.Does the moon's shape change in a pattern?
  • A.No, it changes at random
  • B.Yes, the same shapes come back about every four weeks
  • C.No, it is always round

LessonPrint · 1-ESS1-1 · Set 9 · free to copy for classroom use

Answer key — Moon Shapes for Four Weeks

Set 9. Prints on its own sheet.

  1. 1.1. The moon's shape changes in a pattern that can be predicted. 2. A thin curve, like a fingernail. 3. It grew from a thin curve to a full circle and then began to shrink. 4. A full round circle.
  2. 2.Yes, on some days it is in the sky with the sun
  3. 3.A full moon
  4. 4.It shows the pattern, so you can predict the next shape
  5. 5.Half a circle
  6. 6.Predict the shape you will see next week
  7. 7.Yes, the same shapes come back about every four weeks

Last reviewed 2026-09-05. Aligned to 1-ESS1-1 of the Next Generation Science Standards.