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Free printable PDFs

8th Grade Science Worksheets

Free printable 8th grade science worksheets (Grade 8 in Canada): Organelles Up Close, Cell Division, Nerves and Reflexes, Immune Defenders and more. 366 PDFs with answer keys, aligned to NGSS and the BC curriculum.

Free Worksheets › 8th Grade Worksheets › 8th 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 English Science

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

8th Grade Science worksheets

Organelles Up Close worksheet Science · 6th to 8th Grade Organelles Up Close 6 worksheets with answers Cell Division worksheet Science · 6th to 8th Grade Cell Division 6 worksheets with answers · 🎬 video Nerves and Reflexes worksheet Science · 6th to 8th Grade Nerves and Reflexes 6 worksheets with answers · 🎬 video Immune Defenders worksheet Science · 6th to 8th Grade Immune Defenders 6 worksheets with answers · 🎬 video Digestive Enzymes worksheet Science · 8th Grade Digestive Enzymes 6 worksheets with answers Photosynthesis worksheet Science · 6th to 8th Grade Photosynthesis 6 worksheets with answers · 🎬 video Cellular Respiration worksheet Science · 8th Grade Cellular Respiration 6 worksheets with answers Flowers and Pollinators worksheet Science · 6th to 8th Grade Flowers and Pollinators 6 worksheets with answers Genes and Growth worksheet Science · 6th to 8th Grade Genes and Growth 6 worksheets with answers Sexual or Asexual worksheet Science · 6th to 8th Grade Sexual or Asexual 6 worksheets with answers Mutations worksheet Science · 8th Grade Mutations 6 worksheets with answers · 🎬 video Punnett Squares worksheet Science · 8th Grade Punnett Squares 6 worksheets with answers · 🎬 video Natural Selection worksheet Science · 8th Grade Natural Selection 6 worksheets with answers · 🎬 video Adapting Over Time worksheet Science · 8th Grade Adapting Over Time 6 worksheets with answers Fossil Evidence worksheet Science · 6th to 8th Grade Fossil Evidence 6 worksheets with answers · 🎬 video Bones and Embryos worksheet Science · 8th Grade Bones and Embryos 6 worksheets with answers Breeding and Gene Tech worksheet Science · 8th Grade Breeding and Gene Tech 6 worksheets with answers Symbiosis worksheet Science · 6th to 8th Grade Symbiosis 6 worksheets with answers · 🎬 video Carbon and Nitrogen Cycles worksheet Science · 8th Grade Carbon and Nitrogen Cycles 6 worksheets with answers · 🎬 video The Periodic Table worksheet Science · 6th to 8th Grade The Periodic Table 6 worksheets with answers · 🎬 video Metals and Non Metals worksheet Science · 6th to 8th Grade Metals and Non Metals 6 worksheets with answers Inside the Atom worksheet Science · 6th to 8th Grade Inside the Atom 6 worksheets with answers Density worksheet Science · 6th to 8th Grade Density 6 worksheets with answers · 🎬 video Properties of Substances worksheet Science · 6th to 8th Grade Properties of Substances 6 worksheets with answers Synthetic Materials worksheet Science · 6th to 8th Grade Synthetic Materials 6 worksheets with answers · 🎬 video Particles and Heat worksheet Science · 6th to 8th Grade Particles and Heat 6 worksheets with answers · 🎬 video Conservation of Atoms worksheet Science · 6th to 8th Grade Conservation of Atoms 6 worksheets with answers Hot and Cold Reactions worksheet Science · 6th to 8th Grade Hot and Cold Reactions 6 worksheets with answers The pH Scale worksheet Science · 6th to 8th Grade The pH Scale 6 worksheets with answers · 🎬 video Element, Compound, Mixture worksheet Science · 6th to 8th Grade Element, Compound, Mixture 6 worksheets with answers Speed and Acceleration worksheet Science · 6th to 8th Grade Speed and Acceleration 6 worksheets with answers · 🎬 video Friction and Air Resistance worksheet Science · 6th to 8th Grade Friction and Air Resistance 6 worksheets with answers · 🎬 video Gravity, Mass and Weight worksheet Science · 6th to 8th Grade Gravity, Mass and Weight 6 worksheets with answers · 🎬 video Electromagnets worksheet Science · 6th to 8th Grade Electromagnets 6 worksheets with answers · 🎬 video Static Electricity worksheet Science · 6th to 8th Grade Static Electricity 6 worksheets with answers Thermal Insulation worksheet Science · 6th to 8th Grade Thermal Insulation 6 worksheets with answers · 🎬 video Heat vs Temperature worksheet Science · 6th to 8th Grade Heat vs Temperature 6 worksheets with answers Simple Machines worksheet Science · 6th to 8th Grade Simple Machines 6 worksheets with answers Electromagnetic Spectrum worksheet Science · 6th to 8th Grade Electromagnetic Spectrum 6 worksheets with answers · 🎬 video Digital vs Analog worksheet Science · 6th to 8th Grade Digital vs Analog 6 worksheets with answers · 🎬 video Electric Circuits worksheet Science · 6th to 8th Grade Electric Circuits 6 worksheets with answers Moon Phases worksheet Science · 6th to 8th Grade Moon Phases 6 worksheets with answers Solar System Scale worksheet Science · 6th to 8th Grade Solar System Scale 6 worksheets with answers Galaxies and Light Years worksheet Science · 6th to 8th Grade Galaxies and Light Years 6 worksheets with answers · 🎬 video Life Cycle of Stars worksheet Science · 6th to 8th Grade Life Cycle of Stars 6 worksheets with answers · 🎬 video Geologic Time Scale worksheet Science · 6th to 8th Grade Geologic Time Scale 6 worksheets with answers · 🎬 video Rock Cycle Deep Dive worksheet Science · 6th to 8th Grade Rock Cycle Deep Dive 6 worksheets with answers · 🎬 video Inside Planet Earth worksheet Science · 6th to 8th Grade Inside Planet Earth 6 worksheets with answers · 🎬 video Evidence Plates Move worksheet Science · 6th to 8th Grade Evidence Plates Move 6 worksheets with answers · 🎬 video Water Cycle Engine worksheet Science · 6th to 8th Grade Water Cycle Engine 6 worksheets with answers Ocean Currents worksheet Science · 6th to 8th Grade Ocean Currents 6 worksheets with answers Where Resources Are Found worksheet Science · 6th to 8th Grade Where Resources Are Found 6 worksheets with answers Forecasting Hazards worksheet Science · 6th to 8th Grade Forecasting Hazards 6 worksheets with answers · 🎬 video Human Impact on Earth worksheet Science · 6th to 8th Grade Human Impact on Earth 6 worksheets with answers · 🎬 video Population and Resources worksheet Science · 6th to 8th Grade Population and Resources 6 worksheets with answers · 🎬 video Renewable Energy Tech worksheet Science · 6th to 8th Grade Renewable Energy Tech 6 worksheets with answers Soil Formation worksheet Science · 6th to 8th Grade Soil Formation 6 worksheets with answers Mineral Detective worksheet Science · 6th to 8th Grade Mineral Detective 6 worksheets with answers Glaciers and Ice Ages worksheet Science · 6th to 8th Grade Glaciers and Ice Ages 6 worksheets with answers · 🎬 video Space Exploration worksheet Science · 6th to 8th Grade Space Exploration 6 worksheets with answers · 🎬 video Engineering Design worksheet Science · 6th to 8th Grade Engineering Design 6 worksheets with answers

About these 8th grade science worksheets

DoodleBeez has 366 free printable 8th grade science worksheets covering 61 topics, written for what Canadian schools call Grade 8. 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 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 8th 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 exact code is shown on every topic page. Every topic also matches the BC curriculum in Canada.

What grade are these worksheets for?

They are written for 8th grade in the US, which is Grade 8 in Canada, roughly ages 13 to 14. Topics that span more than one grade are included too.