Illinois Science — Grade 3

Comprehensive Course Syllabus

Course Overview

Our Illinois Grade 3 Science course covers all four NGSS domains in depth. It opens with scientific inquiry, the science and engineering practices, measurement, data representation, and scientific models — the tools used throughout the year.

The physical science strand covers matter and its properties, changes including evaporation and condensation, mixtures and separation, forces and motion, balanced and unbalanced forces, magnets, light, sound, and energy in its several forms.

The life science strand covers plants and photosynthesis, plant and animal life cycles including metamorphosis, traits and heredity, inherited traits versus learned behaviours, and adaptations including camouflage.

The ecology strand covers ecosystems, habitats, food chains with producers, consumers, and decomposers, and environmental relationships including predator and prey, competition, and pollination.

The earth science strand covers weather, weather patterns, the difference between weather and climate, Earth materials, rocks and soil, water on Earth and the water cycle, Earth processes including weathering, erosion, and deposition, and natural hazards with safety planning.

The course closes with human impact on the environment and a full engineering design module, before a year-end review.

Recommended Age 8–9 Years
Prerequisite Grade 2 Science or Equivalent
Course Duration Full Academic Year
Live Classes 2 Classes per Week · 60 Min Each
Program Type Grade-Level Science, Inquiry & STEM Enrichment
Module 1

Introduction to Scientific Inquiry

Topic 1.1

What Is Science?

Students learn what science is. Science is a way of finding things out with evidence.

Topic 1.2

Scientists and Their Work

Students learn what scientists do. Scientists ask questions and test ideas.

Topic 1.3

Scientific Questions

Students ask scientific questions. Testable questions can be investigated.

Topic 1.4

Observation

Students observe carefully. Observation is where science starts.

Topic 1.5

Curiosity

Students build curiosity. Curiosity drives every investigation.

Module 2

Science & Engineering Practices

Topic 2.1

Asking Questions

Students ask investigable questions. A good question can be tested.

Topic 2.2

Defining Problems

Students define problems. Engineering begins with a clear problem.

Topic 2.3

Planning Investigations

Students plan investigations. A plan makes fair testing possible.

Topic 2.4

Making Predictions

Students predict outcomes. Predictions guide the investigation.

Topic 2.5

Using Models

Students use models. Models represent things too big or small to handle.

Module 3

Observation & Measurement

Topic 3.1

Careful Observation

Students observe carefully. Careful looking reveals detail.

Topic 3.2

Measuring Length

Students measure length. Rulers give exact lengths.

Topic 3.3

Measuring Mass

Students measure mass. Scales give an exact reading.

Topic 3.4

Measuring Volume

Students measure volume. Marked containers give exact volumes.

Topic 3.5

Measuring Temperature

Students measure temperature. Thermometers give a numerical reading.

Module 4

Data Collection & Representation

Topic 4.1

Collecting Data

Students collect data. Data answers scientific questions.

Topic 4.2

Organizing Data

Students organise data. Organisation reveals the pattern.

Topic 4.3

Tables

Students make tables. Tables organise raw results.

Topic 4.4

Charts

Students make charts. Charts summarise data visually.

Topic 4.5

Picture Graphs

Students make picture graphs. Each picture stands for a number.

Module 5

Scientific Models

Topic 5.1

What Is a Model?

Students learn what a model is. A model represents something real.

Topic 5.2

Physical Models

Students build physical models. Physical models can be handled.

Topic 5.3

Drawings

Students make scientific drawings. Drawings record detail accurately.

Topic 5.4

Diagrams

Students make diagrams. Diagrams show structure and relationships.

Topic 5.5

Simple Simulations

Students run simple simulations. Simulations model processes over time.

Module 6

Matter

Topic 6.1

What Is Matter?

Students learn what matter is. Matter is anything with mass and volume.

Topic 6.2

Solids

Students study solids. Solids keep their own shape.

Topic 6.3

Liquids

Students study liquids. Liquids take their container’s shape.

Topic 6.4

Gases

Students study gases. Gases fill all available space.

Topic 6.5

Properties of Matter

Students describe properties. Properties tell what matter is like.

Module 7

Physical Properties of Materials

Topic 7.1

Color

Students observe colour. Colour is a visible property.

Topic 7.2

Texture

Students observe texture. Texture is felt by touch.

Topic 7.3

Hardness

Students test hardness. Hard materials resist scratching.

Topic 7.4

Flexibility

Students test flexibility. Flexible materials bend without breaking.

Topic 7.5

Absorbency

Students test absorbency. Absorbent materials soak up liquid.

Module 8

Changes in Matter

Topic 8.1

Melting

Students study melting. Heating turns solids into liquids.

Topic 8.2

Freezing

Students study freezing. Cooling turns liquids into solids.

Topic 8.3

Heating

Students study heating. Heat drives many changes.

Topic 8.4

Cooling

Students study cooling. Cooling can reverse heating.

Topic 8.5

Evaporation

Students study evaporation. Liquid water becomes water vapour.

Module 9

Mixtures & Materials

Topic 9.1

Mixtures

Students study mixtures. A mixture combines materials without changing them.

Topic 9.2

Combining Materials

Students combine materials. Combining creates a mixture.

Topic 9.3

Separating Materials

Students separate mixtures. Separation reverses mixing.

Topic 9.4

Soluble Materials

Students test soluble materials. Soluble materials dissolve in liquid.

Topic 9.5

Insoluble Materials

Students test insoluble materials. Insoluble materials do not dissolve.

Module 10

Forces & Motion

Topic 10.1

Force

Students learn about force. A force is a push or a pull.

Topic 10.2

Pushes

Students study pushes. A push moves things away.

Topic 10.3

Pulls

Students study pulls. A pull brings things closer.

Topic 10.4

Motion

Students study motion. Motion is change of position.

Topic 10.5

Direction

Students describe direction. Forces change direction of motion.

Module 11

Balanced & Unbalanced Forces

Topic 11.1

Force Direction

Students study force direction. Direction decides the effect.

Topic 11.2

Stronger Forces

Students study stronger forces. A bigger force has a bigger effect.

Topic 11.3

Weaker Forces

Students study weaker forces. Weaker forces produce smaller changes.

Topic 11.4

Balanced Forces Introduction

Students meet balanced forces. Balanced forces cancel out.

Topic 11.5

Unbalanced Forces

Students study unbalanced forces. Unbalanced forces change motion.

Module 12

Magnets

Topic 12.1

Magnetic Materials

Students identify magnetic materials. Only some metals are magnetic.

Topic 12.2

Magnetic Force

Students study magnetic force. Magnetic force acts without touching.

Topic 12.3

Attraction

Students study attraction. Opposite poles attract.

Topic 12.4

Repulsion

Students study repulsion. Like poles repel.

Topic 12.5

Magnetic Poles

Students study magnetic poles. Every magnet has two poles.

Modules 13–35

Also Covered in This Course

Light
Sound
Energy
Plants
Plant Life Cycles
Animal Life Cycles
Traits & Heredity Introduction
Adaptations
Ecosystems
Habitats
Food Chains & Energy Flow
Environmental Relationships
Weather
Weather Patterns
Climate Introduction
Earth Materials
Rocks & Soil
Water on Earth
Earth Processes
Natural Hazards
Human Impact on the Environment
Engineering Design & STEM
Comprehensive Grade 3 Science Review

Teaching Methodology

Our Grade 3 Science classes are investigation-led and evidence-based. Students predict, test, measure, graph, and explain in almost every session, and most units include something they can try at home with safe everyday materials. Students learn through:

Live interactive classes
Guided observation activities
Measurement with real tools and units
Planned fair-test investigations
Data tables, charts, and graphs
Model building and diagramming
Matter and material property testing
Evaporation and condensation demonstrations
Mixing and separating investigations
Force and motion experiments
Magnet investigations
Light, shadow, and reflection experiments
Sound and vibration activities
Plant growing and life cycle observation
Life cycle and metamorphosis study
Trait observation activities
Adaptation case studies
Food chain construction
Daily weather tracking and graphing
Climate comparison activities
Rock and soil examination
Water cycle modelling
Natural hazard safety planning
Conservation projects
Engineering design challenges
Progress reports

Learning Outcomes

By the end of Grade 3, students will be able to:

Ask testable questions and plan fair investigations.
Measure length, mass, volume, temperature, and time with correct units.
Collect, organize, and graph data using tables, bar graphs, and line graphs.
Build, use, and improve scientific models and explain their limitations.
Describe matter and compare materials by their physical properties.
Explain melting, freezing, evaporation, condensation, and dissolving.
Distinguish reversible from irreversible changes.
Mix and separate materials and explain solubility and filtering.
Explain that forces are pushes and pulls that change motion.
Distinguish balanced from unbalanced forces and predict motion.
Investigate magnetic attraction, repulsion, poles, and strength.
Explain reflection, shadows, and how light passes through materials.
Explain that sound comes from vibrations and describe pitch and volume.
Identify light, sound, heat, electrical, and motion energy.
Name plant parts and explain photosynthesis at an introductory level.
Describe plant and animal life cycles including metamorphosis.
Distinguish inherited traits from learned behaviours.
Explain physical and behavioural adaptations including camouflage.
Describe ecosystems and the living and nonliving parts.
Compare forest, grassland, desert, wetland, ocean, and freshwater habitats.
Build food chains with producers, consumers, and decomposers.
Explain competition, predator–prey, and pollination relationships.
Observe, measure, record, graph, and predict weather.
Distinguish weather from climate and describe climate zones.
Identify Earth materials and classify rocks and soil.
Describe where water is found and explain the water cycle.
Explain weathering, erosion, and deposition by wind, water, and ice.
Identify natural hazards and describe safety and preparedness measures.
Explain human impact and describe conservation and recycling.
Work through the full engineering design process with data and iteration.

Assessment & Progress Tracking

Student progress is evaluated through:

Weekly practice worksheets
Observation tasks
Measurement activities
Investigation records
Data representation exercises
Model building assessments
Matter and property tests
Change of state observations
Mixture separation tasks
Force and motion experiments
Balanced force reasoning tasks
Magnet investigation records
Light and shadow experiments
Sound investigation tasks
Energy identification exercises
Plant observation journals
Life cycle diagrams
Trait and heredity tasks
Adaptation case studies
Ecosystem projects
Food chain activities
Weather data records
Climate comparison tasks
Earth material classification
Water cycle diagrams
Natural hazard safety plans
Conservation projects
Engineering design challenges
Personalized progress reports

Why Choose NextChanakya for Illinois Grade 3 Science?

Broad alignment with the Illinois Learning Standards for Science
A dedicated science and engineering practices module
Scientific models built, used, and critiqued
Data representation including line graphs
Evaporation and condensation taught explicitly
Balanced and unbalanced forces as its own module
A full magnets module with distance investigation
Transparent, translucent, and opaque compared
Five forms of energy identified by name
Inherited traits distinguished from learned behaviours
Six types of adaptation taught separately
Food chains with producers, consumers, and decomposers
Competition, predation, and pollination relationships
Weather and climate clearly distinguished
The water cycle taught with all three processes
Weathering, erosion, and deposition explained separately
Natural hazards with real safety planning
Human impact and conservation taught honestly
Small live online classes with personal attention

Standards Note

Grade 3 Science learning in Illinois is guided by the Illinois Learning Standards for Science, which incorporate the Next Generation Science Standards and describe expectations across life science, physical science, earth and space science, and engineering design.

Illinois schools and districts may organise science instruction differently and may use different textbooks, kits, instructional materials, pacing guides, technology, activities, and assessments. The exact sequence and depth of topics may vary by school or educational provider.

This syllabus represents a broad Grade 3 Science pathway designed to support Illinois science learning expectations. It is not the only Grade 3 Science syllabus available, and no specific textbook, kit, assessment, software, or instructional resource is required statewide.

Content on inherited traits, adaptations, ecosystems, and human impact on the environment is presented factually as established science, at a level appropriate for this age group.

The natural hazards module covers storms, floods, tornadoes, earthquakes, and wildfires. It is taught in a calm, preparedness-focused way, emphasising safety planning and community response rather than alarm. Illinois families may find the tornado content locally relevant.

All hands-on activities are designed to use safe, everyday materials and should be carried out with adult supervision. Students are taught electrical and heat safety, never to look directly at the Sun, and to protect their hearing from very loud sounds.

It is important to distinguish between the Illinois science learning standards and the course structure created for this educational programme, which organises science into a month-by-month teaching sequence.

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