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Free Science Worksheets for Grades 1–12

Generate print-ready science worksheets in seconds with AI. Biology, chemistry, physics, earth science — any topic, any grade, with a full answer key. Free to try.

3 free worksheets/month · No credit card · Cancel anytime

Why teachers choose WorksheetGen for science

AI-Written Questions

Claude AI generates unique, grade-appropriate science questions — not recycled test bank content.

Answer Key Included

Every worksheet includes a complete answer key so you can grade in seconds.

Instant PDF Download

Print-ready PDF in US Letter or A4. Formatted for classroom or home use.

All Science Branches

Life science, physical science, earth science, chemistry, biology, and physics — all grades.

Science topics by grade level

Generate worksheets for any science topic in any grade — instantly

Grade 1–2

  • Living vs Non-Living
  • Weather & Seasons
  • Animals & Habitats
  • Plants & Growth

Grade 3–4

  • Food Chains
  • States of Matter
  • Simple Machines
  • Ecosystems

Grade 5–6

  • Cell Biology Intro
  • Earth's Layers
  • Forces & Motion
  • Photosynthesis

Grade 7–8

  • Cell Division
  • Genetics Intro
  • Chemical Reactions
  • Waves & Energy

Grade 9–10

  • Chemistry: Periodic Table
  • Physics: Newton's Laws
  • Biology: DNA
  • Earth Science

Grade 11–12

  • Organic Chemistry
  • Quantum Physics Intro
  • Molecular Biology
  • Environmental Science

Create a science worksheet in 3 steps

01

Choose your settings

Select grade, science topic (e.g. photosynthesis), difficulty, and number of questions.

02

AI generates instantly

Claude AI creates a complete worksheet with questions and a full answer key in seconds.

03

Download & print

Export to PDF in US Letter or A4. Ready for class, homework, or test prep.

Try it free — no signup needed

Frequently asked questions

Are the science worksheets really free?

Yes — the Free plan gives you 3 worksheets per month at no cost. Paid plans unlock unlimited generation with no monthly cap.

What science subjects are covered?

All K–12 science branches: life science, physical science, earth and space science, biology, chemistry, physics, environmental science, and more.

Can I generate worksheets for a specific science unit?

Yes. Enter any topic — for example 'photosynthesis', 'Newton's laws', or 'the water cycle' — and WorksheetGen creates questions specifically for that topic.

Do worksheets include diagrams?

Worksheets focus on text-based questions (multiple choice, short answer, fill-in-the-blank). Diagram labeling prompts can be included as fill-in-the-blank questions.

Can I use these for science test prep?

Yes. Use the Online Test mode to turn any science worksheet into a timed interactive quiz — great for practice before exams.

Start generating science worksheets free

No credit card. No setup. Your first worksheet in under 30 seconds.

Get started free →