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 23 of 25 · the same problems every time you open this link.
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. What does this record not tell you?
2. What claim does this record support?
3. What shape would you expect in week 5?
4. What happened to the moon's shape over the four weeks?
2.After the full moon, what happens to the shape night by night?
A.It gets smaller again
B.It stays full
C.It gets bigger
3.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
4.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
5.On some clear nights the moon cannot be seen at all. When in the pattern does that happen?
A.At the half moon
B.Just before the thin curve appears again
C.At the full moon
6.Does the moon's shape change in a pattern?
A.No, it changes at random
B.No, it is always round
C.Yes, the same shapes come back about every four weeks
7.Can the moon sometimes be seen in the daytime?
A.Only in winter
B.No, never
C.Yes, on some days it is in the sky with the sun
LessonPrint · 1-ESS1-1 · Set 23 · free to copy for classroom use
Answer key — Moon Shapes for Four Weeks
Set 23. Prints on its own sheet.
1.1. It does not tell you what the moon looked like between the weeks. 2. The moon's shape changes in a pattern that can be predicted. 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.It gets smaller again
3.A full round circle
4.A full moon
5.Just before the thin curve appears again
6.Yes, the same shapes come back about every four weeks
7.Yes, on some days it is in the sky with the sun
Last reviewed 2026-09-05. Aligned to 1-ESS1-1 of the Next Generation Science Standards.