Grade 3 Science
10 units matched to the Prince Edward Island Curriculum.
Learning focus
- Life Science: Plant Growth and Changes.
- Earth and Space Science: Exploring Soils.
- Physical Science: Invisible Forces.
- Physical Science: Materials and Structures.
Units
Unit 1
Plant Parts & Needs
Roots, stems, leaves, flowers (with the stamen and pistil), fruit, seeds and cones, plus what plants need to live: air, water, light, heat, nutrients and space.
Curriculum outcome: Life Science: Plant Growth and Changes · plant parts and what they do, and what plants need to grow
Unit 2
How Plants Grow & Change
From seed to flower and back to seed, how seeds travel, how plants react to light and seasons, and how they use sunlight, water and carbon dioxide to make food and release oxygen.
Curriculum outcome: Life Science: Plant Growth and Changes · how plants grow and change through a life cycle, from seed to new seeds
Unit 3
Plant Experiments
Children sort seeds, predict and test which conditions help plants grow, and record and graph plant growth. This is practice, not a report-card mark.
Curriculum outcome: Life Science: Plant Growth and Changes · investigating growing conditions, sorting seeds and graphing plant growth
Unit 4
What Is Soil?
Children explore the make-up of different soils, compare them, and see how living things and soil affect each other. This is practice, not a report-card mark.
Curriculum outcome: Earth and Space Science: Exploring Soils · soil components, how soils differ and how living things and soil affect each other
Unit 5
Soil and Water
Children compare how well different soils soak up water, graph results, and see what moving water does to soil. They also use earth materials to make useful objects. This is practice, not a report-card mark.
Curriculum outcome: Earth and Space Science: Exploring Soils · how moisture, water absorption and moving water affect different soils
Unit 6
Pushes, Pulls & Forces
Forces as pushes and pulls, contact and non-contact forces (gravity, magnetism, static electricity), friction, how bigger forces change motion more, and helmets and seat belts as safety devices.
Curriculum outcome: Physical Science: Invisible Forces · pushes, pulls and forces that act without touching, including magnets and gravity
Unit 7
Magnets and Static
Children explore how magnets attract and repel, which materials magnets pick up, and how static electricity works in everyday life. This is practice, not a report-card mark.
Curriculum outcome: Physical Science: Invisible Forces · magnet poles, magnetic materials, conditions that affect magnets and static electricity
Unit 8
Structures & Their Jobs
What makes something a structure, how its shape fits its job (a bowl-shaped nest, a sloped roof), structures built by animals and by people, and how they change the environment.
Curriculum outcome: Physical Science: Materials and Structures · natural and built structures, the materials they use and the jobs of their parts
Unit 9
Strong & Stable
Strength as holding a load and stability as staying balanced, how shape, a wide base and materials help, and how struts (pushed) and ties (pulled) work in a frame.
Curriculum outcome: Physical Science: Materials and Structures · what makes a structure strong and stable, and how shapes and supports help
Unit 10
Science Skills & Safety
Making predictions and observations, running a fair test that changes one thing, using simple tools safely, the engineering design steps, debugging a simple program, and how science helps solve real problems.
Curriculum outcome: GCO 2 · asking questions, fair tests, safe science and solving problems
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