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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 8 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 shape was it in week 1?
  3. 3. What happened to the moon's shape over the four weeks?
  4. 4. What was kept the same when the drawings were made?
2.Does the moon's shape change in a pattern?
  • A.No, it is always round
  • B.No, it changes at random
  • C.Yes, the same shapes come back about every four weeks
3.What do we call the moon when it is a full round circle?
  • A.A half moon
  • B.A full moon
  • C.A new moon
4.The moon is half a circle and growing. What comes after that?
  • A.A full round circle
  • B.No moon at all
  • C.A thin curve
5.On some clear nights the moon cannot be seen at all. When in the pattern does that happen?
  • A.At the full moon
  • B.Just before the thin curve appears again
  • C.At the half moon
6.The moon was a full circle last night. About how long until it is full again?
  • A.About four weeks
  • B.One night
  • C.One year
7.You know today's moon shape. What can you do with the pattern?
  • A.Predict the shape you will see next week
  • B.Predict tomorrow's weather
  • C.Make the moon full sooner

LessonPrint · 1-ESS1-1 · Set 8 · free to copy for classroom use

Answer key — Moon Shapes for Four Weeks

Set 8. Prints on its own sheet.

  1. 1.1. It does not tell you what the moon looked like between the weeks. 2. A thin curve, like a fingernail. 3. It grew from a thin curve to a full circle and then began to shrink. 4. They were drawn at the same time each week.
  2. 2.Yes, the same shapes come back about every four weeks
  3. 3.A full moon
  4. 4.A full round circle
  5. 5.Just before the thin curve appears again
  6. 6.About four weeks
  7. 7.Predict the shape you will see next week

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