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Day Sky, Night Sky is a free printable Grade 1 science worksheet on the predictable pattern of what can be seen in the sky by day and by night, aligned to NGSS performance expectation 1-ESS1-1. It prints 3 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 1 of 25 · the same problems every time you open this link.

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One paper per student

All 25 sets ask different questions.

Day Sky, Night Sky

1-ESS1-1

NameDate

Sort each one into the right group.

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

Answer key — Day Sky, Night Sky

Set 1. Prints on its own sheet.

  1. 1.1. A rainbow after a shower — Seen in the day sky 2. Clouds — Can be seen in both 3. The stars — Seen in the night sky
  2. 2.1. A dark sky — Seen in the night sky 2. The moon — Can be seen in both 3. The sun — Seen in the day sky
  3. 3.1. A bright blue sky — Seen in the day sky 2. A pattern of stars like a saucepan — Seen in the night sky 3. Lightning in a storm — Can be seen in both

Questions about Day Sky, Night Sky

What does the Day Sky, Night Sky worksheet cover?

It practices the predictable pattern of what can be seen in the sky by day and by night — 3 questions for Grade 1, all on NGSS 1-ESS1-1: Use what the sun, moon and stars do to say what will happen next. The instruction to students is “Sort each one into the right group”, and the answer key follows on the next sheet.

Which NGSS performance expectation does Day Sky, Night Sky practice?

1-ESS1-1, under Earth and Space Science for Grade 1. The published performance expectation reads: “Use observations of the sun, moon, and stars to describe patterns that can be predicted.” The worksheet assesses that performance expectation rather than a paraphrase of it.

What age or grade is this worksheet for?

Day Sky, Night Sky is written for Grade 1, typically ages 6-7. It is one of the sheets on 1-ESS1-1, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.

Does Day Sky, Night Sky come with an answer key?

Yes. All 3 answers are generated from the same problems as the questions, so the key cannot drift out of step with the sheet. It starts on a fresh sheet of paper, after the questions, so it is not handed out with the class by accident.

How many different versions of Day Sky, Night Sky can I print?

25 — one per student, and all 25 ask different questions. Set 1 downloads the whole class as a single PDF. Every version is fixed to its own address, so a sheet printed today holds the same problems when you reopen it next week.

Is Day Sky, Night Sky free to print and photocopy?

Yes. Day Sky, Night Sky, its answer key and its 25 versions are free to print and photocopy for your own class, with no account, no email capture and no subscription at the download step. Please do not resell them or republish them as your own.

More practice for 1-ESS1-1

Use what the sun, moon and stars do to say what will happen next.

All Grade 1 worksheets

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