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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 14 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 does this record not tell you?
  2. 2. What was kept the same when the drawings were made?
  3. 3. What happened to the moon's shape over the four weeks?
  4. 4. What shape was the moon in week 3?
2.The moon is a thin curve and getting bigger each night. What shape comes next?
  • A.A thin curve again
  • B.A square
  • C.Half a circle
3.After the full moon, what happens to the shape night by night?
  • A.It gets smaller again
  • B.It gets bigger
  • C.It stays full
4.Why is a moon diary useful?
  • A.It shows the pattern, so you can predict the next shape
  • B.It makes the moon change
  • C.It shows how far away the moon is
5.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
6.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
7.Does the moon's shape change in a pattern?
  • A.Yes, the same shapes come back about every four weeks
  • B.No, it is always round
  • C.No, it changes at random

LessonPrint · 1-ESS1-1 · Set 14 · free to copy for classroom use

Answer key — Moon Shapes for Four Weeks

Set 14. Prints on its own sheet.

  1. 1.1. It does not tell you what the moon looked like between the weeks. 2. They were drawn at the same time each week. 3. It grew from a thin curve to a full circle and then began to shrink. 4. A full round circle.
  2. 2.Half a circle
  3. 3.It gets smaller again
  4. 4.It shows the pattern, so you can predict the next shape
  5. 5.Predict the shape you will see next week
  6. 6.Yes, on some days it is in the sky with the sun
  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.