Canadian Curriculum · Grade 3 Science

Grade 3 Science Lesson Plan & Curriculum Map

A full-year Grade 3 Science lesson plan aligned to the Ontario curriculum, adaptable to other provinces. Week-by-week lessons for 1, 2 or 3 days a week from September to August, covering materials, states of matter and phase change, heat and thermal energy, physical and chemical change, force and motion, magnets, animals, plants, ecosystems, fossils, weather and climate, Earth’s features and events, engineering practices and measurement.

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Grade 3 Science learning map

Choose a term, then compare a lighter weekly plan with a more intensive schedule.

1 day/week · steady pace2–3 days/week · guided practice
September · Materials & States of Matter

Grade 3 Science — September Lesson Plan

Ontario Curriculum · Science
Week1 Day/Week2 Day/Week3 Day/Week
September 1st week
(Science)		Materials & States of Matter 1: Identify materials in objectsMaterials & States of Matter 1: Identify materials in objectsMaterials & States of Matter 1: Identify materials in objects 2: Classify matter as solid, liquid or gas
September 2nd week
(Science)		Materials & States of Matter 2: Classify matter as solid, liquid or gasMaterials & States of Matter 2: Classify matter as solid, liquid or gas 3: Identify multiple materials in objectsMaterials & States of Matter 3: Identify multiple materials in objects 4: Identify solids, liquids and gases
September 3rd week
(Science)		Materials & States of Matter 3: Identify multiple materials in objectsMaterials & States of Matter 4: Identify solids, liquids and gasesMaterials & States of Matter 5: Concept Review 6: Lab Activity & Quiz
September 4th week
(Science)		Materials & States of Matter 4: Identify solids, liquids and gases 5: Concept Review 6: Lab Activity & QuizMaterials & States of Matter 5: Concept Review 6: Lab Activity & QuizMaterials & States of Matter Applied Practice Task
October · Phase change & Heat and thermal energy

Grade 3 Science — October Lesson Plan

Ontario Curriculum · Science
Week1 Day/Week2 Day/Week3 Day/Week
October 1st week
(Science)		Phase change & Heat and thermal energy 1: Change-of-state diagrams: solid, liquid and gasPhase change & Heat and thermal energy 1: Change-of-state diagrams: solid, liquid and gasPhase change & Heat and thermal energy 1: Change-of-state diagrams: solid, liquid and gas 2: Predict heat flow
October 2nd week
(Science)		Phase change & Heat and thermal energy 2: Predict heat flowPhase change & Heat and thermal energy 2: Predict heat flow 3: Heating, cooling and changes of statePhase change & Heat and thermal energy 3: Heating, cooling and changes of state 4: Predict temperature changes
October 3rd week
(Science)		Phase change & Heat and thermal energy 3: Heating, cooling and changes of statePhase change & Heat and thermal energy 4: Predict temperature changesPhase change & Heat and thermal energy 5: Concept Review 6: Lab Activity & Quiz
October 4th week
(Science)		Phase change & Heat and thermal energy 4: Predict temperature changes 5: Concept Review 6: Lab Activity & QuizPhase change & Heat and thermal energy 5: Concept Review 6: Lab Activity & QuizPhase change & Heat and thermal energy Applied Practice Task
November · Physical and chemical change & Force and motion

Grade 3 Science — November Lesson Plan

Ontario Curriculum · Science
Week1 Day/Week2 Day/Week3 Day/Week
November 1st week
(Science)		Physical and chemical change & Force and motion 1: Identify physical and chemical changesPhysical and chemical change & Force and motion 1: Identify physical and chemical changesPhysical and chemical change & Force and motion 1: Identify physical and chemical changes 2: Identify pushes and pulls
November 2nd week
(Science)		Physical and chemical change & Force and motion 2: Identify pushes and pullsPhysical and chemical change & Force and motion 2: Identify pushes and pulls 3: Compare physical and chemical changesPhysical and chemical change & Force and motion 3: Compare physical and chemical changes 4: How do balanced and unbalanced forces affect motion?
November 3rd week
(Science)		Physical and chemical change & Force and motion 3: Compare physical and chemical changesPhysical and chemical change & Force and motion 4: How do balanced and unbalanced forces affect motion?Physical and chemical change & Force and motion 5: Concept Review 6: Lab Activity & Quiz
November 4th week
(Science)		Physical and chemical change & Force and motion 4: How do balanced and unbalanced forces affect motion? 5: Concept Review 6: Lab Activity & QuizPhysical and chemical change & Force and motion 5: Concept Review 6: Lab Activity & QuizPhysical and chemical change & Force and motion Applied Practice Task
December · Magnets & Animals

Grade 3 Science — December Lesson Plan

Ontario Curriculum · Science
Week1 Day/Week2 Day/Week3 Day/Week
December 1st week
(Science)		Magnets & Animals 1: Identify magnets that attract or repelMagnets & Animals 1: Identify magnets that attract or repelMagnets & Animals 1: Identify magnets that attract or repel 2: Pollinator: ruby-throated hummingbird
December 2nd week
(Science)		Magnets & Animals 2: Pollinator: ruby-throated hummingbirdMagnets & Animals 2: Pollinator: ruby-throated hummingbird 3: Label magnets that attract or repelMagnets & Animals 3: Label magnets that attract or repel 4: Pollinator: Indian flying fox
December 3rd week
(Science)		Magnets & Animals 3: Label magnets that attract or repelMagnets & Animals 4: Pollinator: Indian flying foxMagnets & Animals 5: Concept Review 6: Lab Activity & Quiz
December 4th week
(Science)		Magnets & Animals 4: Pollinator: Indian flying fox 5: Concept Review 6: Lab Activity & QuizMagnets & Animals 5: Concept Review 6: Lab Activity & QuizMagnets & Animals Applied Practice Task
The learning framework

Anatomy of a focused lesson

Each session moves from a clear focus to guided practice and a quick check for understanding.

10 minutes

Wonder and question

Start with a real-world question or demonstration that connects the week’s Grade 3 topic to everyday life.

25 minutes

Explore and explain

Investigate the idea with visuals and simple experiments, then explain what was observed using key vocabulary.

10 minutes

Check for understanding

Finish with a short exit task so the tutor knows exactly what to revisit next lesson.

Student learning toolkit

Resources for Grade 3 Science

Concept lessons

Clear explanations of each Grade 3 science topic in the order your child meets it at school.

Concept reviews

Concept reviews at the end of each chapter to consolidate key ideas and vocabulary.

Lab activities & quizzes

Hands-on lab activities and quizzes matched to each week of the plan.

Progress notes

Regular feedback for parents on strengths, gaps and next steps.

Free first lesson

Build a plan for Grade 3 Science

Tell us your child’s province and where they are in Grade 3 science, and we will shape the first lesson around their goals.

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  • A recommended next-step study plan