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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 16 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 shape was the moon in week 3?
  2. 2. What was kept the same when the drawings were made?
  3. 3. What shape would you expect in week 5?
  4. 4. What happened to the moon's shape over the four weeks?
2.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
3.On some clear nights the moon cannot be seen at all. When in the pattern does that happen?
  • A.Just before the thin curve appears again
  • B.At the full moon
  • C.At the half moon
4.The moon was a full circle last night. About how long until it is full again?
  • A.One night
  • B.One year
  • C.About four weeks
5.The moon is half a circle and growing. What comes after that?
  • A.No moon at all
  • B.A full round circle
  • C.A thin curve
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.What do we call the moon when it is a full round circle?
  • A.A half moon
  • B.A new moon
  • C.A full moon

LessonPrint · 1-ESS1-1 · Set 16 · free to copy for classroom use

Answer key — Moon Shapes for Four Weeks

Set 16. Prints on its own sheet.

  1. 1.1. A full round circle. 2. They were drawn at the same time each week. 3. A thin curve again, because the shape is shrinking after the full circle. 4. It grew from a thin curve to a full circle and then began to shrink.
  2. 2.Half a circle
  3. 3.Just before the thin curve appears again
  4. 4.About four weeks
  5. 5.A full round circle
  6. 6.Predict the shape you will see next week
  7. 7.A full moon

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