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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.

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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 would you expect in week 5?
  3. 3. What shape was the moon in week 3?
  4. 4. What shape was it in week 1?
2.Can the moon sometimes be seen in the daytime?
  • A.Yes, on some days it is in the sky with the sun
  • B.Only in winter
  • C.No, never
3.The moon was a full circle last night. About how long until it is full again?
  • A.One year
  • B.One night
  • C.About four weeks
4.After the full moon, what happens to the shape night by night?
  • A.It gets bigger
  • B.It gets smaller again
  • C.It stays full
5.Why is a moon diary useful?
  • A.It shows how far away the moon is
  • B.It makes the moon change
  • C.It shows the pattern, so you can predict the next shape
6.What do we call the moon when it is a full round circle?
  • A.A full moon
  • B.A new moon
  • C.A half moon
7.The moon is half a circle and growing. What comes after that?
  • A.A thin curve
  • B.No moon at all
  • C.A full round circle

LessonPrint · 1-ESS1-1 · Set 24 · free to copy for classroom use

Answer key — Moon Shapes for Four Weeks

Set 24. Prints on its own sheet.

  1. 1.1. The moon's shape changes in a pattern that can be predicted. 2. A thin curve again, because the shape is shrinking after the full circle. 3. A full round circle. 4. A thin curve, like a fingernail.
  2. 2.Yes, on some days it is in the sky with the sun
  3. 3.About four weeks
  4. 4.It gets smaller again
  5. 5.It shows the pattern, so you can predict the next shape
  6. 6.A full moon
  7. 7.A full round circle

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