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Free printable PDFs

3rd Grade Science Worksheets

Free printable 3rd grade science worksheets (Grade 3 in Canada): Stars and Constellations, Busy Pollinators, Fast and Slow Changes, Balanced Forces and more. 218 PDFs with answer keys, aligned to NGSS, Common Core and the BC curriculum.

Free Worksheets › 3rd Grade Worksheets › 3rd Grade Science Worksheets

✅ Answer key on every sheetPage 2 of each PDF
🎧 Practice online tooSame skill, read aloud by Luna
🎬 Video lessonsWatch Luna explain the skill
🇺🇸 🇨🇦 US and Canada standardsCommon Core, NGSS and C3 in the US, plus the BC curriculum in Canada

Subject: All Math Reading English Spelling Vocabulary Phonics Cursive Science Social Studies

Grade: K 1st 2nd 3rd 4th 5th 6th 7th 8th

3rd Grade Science worksheets

Stars and Constellations worksheet Science · 1st to 3rd Grade Stars and Constellations 6 worksheets with answers Busy Pollinators worksheet Science · 1st to 3rd Grade Busy Pollinators 6 worksheets with answers Fast and Slow Changes worksheet Science · 1st to 3rd Grade Fast and Slow Changes 6 worksheets with answers Balanced Forces worksheet Science · 3rd to 5th Grade Balanced Forces 6 worksheets with answers · 🎬 video Patterns of Motion worksheet Science · 3rd to 5th Grade Patterns of Motion 6 worksheets with answers · 🎬 video Static Electricity worksheet Science · 3rd to 5th Grade Static Electricity 6 worksheets with answers Magnet Poles worksheet Science · 3rd to 5th Grade Magnet Poles 6 worksheets with answers Friction worksheet Science · 3rd to 5th Grade Friction 6 worksheets with answers · 🎬 video Gravity Pulls Down worksheet Science · 2nd to 5th Grade Gravity Pulls Down 6 worksheets with answers Animal Groups worksheet Science · 3rd to 5th Grade Animal Groups 6 worksheets with answers Plant Life Cycle worksheet Science · 3rd to 5th Grade Plant Life Cycle 6 worksheets with answers · 🎬 video Frog Life Cycle worksheet Science · 2nd to 5th Grade Frog Life Cycle 6 worksheets with answers · 🎬 video Same Kind, Different Looks worksheet Science · 3rd to 5th Grade Same Kind, Different Looks 6 worksheets with answers · 🎬 video Environment and Traits worksheet Science · 3rd to 5th Grade Environment and Traits 6 worksheets with answers Fossil Clues worksheet Science · 3rd to 5th Grade Fossil Clues 6 worksheets with answers Camouflage worksheet Science · 2nd to 5th Grade Camouflage 6 worksheets with answers · 🎬 video Changing Habitats worksheet Science · 3rd to 5th Grade Changing Habitats 6 worksheets with answers Climates of the World worksheet Science · 3rd to 5th Grade Climates of the World 6 worksheets with answers · 🎬 video Weather Data worksheet Science · 3rd to 5th Grade Weather Data 6 worksheets with answers · 🎬 video Natural Hazards worksheet Science · 3rd to 5th Grade Natural Hazards 6 worksheets with answers · 🎬 video Arctic Wildlife worksheet Science · 2nd to 5th Grade Arctic Wildlife 6 worksheets with answers Bird Migration worksheet Science · 2nd to 5th Grade Bird Migration 6 worksheets with answers Backbone or Not worksheet Science · 3rd to 5th Grade Backbone or Not 6 worksheets with answers Animal Classes worksheet Science · 3rd to 5th Grade Animal Classes 6 worksheets with answers · 🎬 video Simple Machines worksheet Science · 3rd to 5th Grade Simple Machines 6 worksheets with answers · 🎬 video Cloud Types worksheet Science · 3rd to 5th Grade Cloud Types 6 worksheets with answers Think Like a Scientist worksheet Science · 3rd to 5th Grade Think Like a Scientist 6 worksheets with answers Engineering Design worksheet Science · 3rd to 5th Grade Engineering Design 6 worksheets with answers · 🎬 video Speed and Energy worksheet Science · 3rd to 5th Grade Speed and Energy 6 worksheets with answers · 🎬 video Collisions worksheet Science · 3rd to 5th Grade Collisions 6 worksheets with answers Conductors and Insulators worksheet Science · 3rd to 5th Grade Conductors and Insulators 6 worksheets with answers Break, Move, Drop worksheet Science · 3rd to 5th Grade Break, Move, Drop 6 worksheets with answers · 🎬 video Plant Survival Parts worksheet Science · 3rd to 5th Grade Plant Survival Parts 6 worksheets with answers Animal Body Tools worksheet Science · 3rd to 5th Grade Animal Body Tools 6 worksheets with answers · 🎬 video Healthy Food Groups worksheet Science · 3rd to 5th Grade Healthy Food Groups 6 worksheets with answers · 🎬 video Vitamin Jobs worksheet Science · 2nd and 3rd Grade Vitamin Jobs 4 worksheets with answers Eat a Rainbow Fruit Chart worksheet Science · 3rd and 4th Grade Eat a Rainbow Fruit Chart 4 worksheets with answers

About these 3rd grade science worksheets

DoodleBeez has 218 free printable 3rd grade science worksheets covering 37 topics, written for what Canadian schools call Grade 3. Each PDF prints on one page with the answer key on page 2, so parents and teachers can check work in seconds. Every topic is matched to a US standard (NGSS and Common Core), and children can practice the same skill online with Luna reading every question aloud. Many topics also have a short video lesson.

The first worksheet in every topic is free to download with no account. Sign up free for any 100 worksheets, or go Premium for unlimited. Premium covers all 10,215 worksheets, and Family Premium adds one click workbook downloads.

Questions parents ask

Are these 3rd grade science worksheets free?

Yes. The first worksheet in every topic is free to download with no account. Sign up free for any 100 worksheets, or go Premium for unlimited.

Are answer keys included?

Yes. Every PDF has its answer key on page 2, so parents and teachers can check work quickly.

Which standards do these worksheets follow?

Each topic is aligned to the Next Generation Science Standards (NGSS) and the Common Core State Standards, and the exact code is shown on every topic page. Many topics also match the BC curriculum in Canada.

What grade are these worksheets for?

They are written for 3rd grade in the US, which is Grade 3 in Canada, roughly ages 8 to 9. Topics that span more than one grade are included too.