Must-Know Science Revision Notes for Primary 3 & 4
(Revise Them Before the Crucial Exams)
Home | Science Revision Notes | Primary 3 & Primary 4
Does your Primary 3 or 4 child find science challenging, especially when it comes to explaining concepts clearly in exams? You’re not alone – many Singapore parents notice their children understand science content, but they struggle to write comprehensive answers that earn full marks.
Our comprehensive science revision guide for Primary 3 & 4 is specifically designed to bridge this gap. Created by our team of science specialists, who have guided over 5,000 students to science success, these resources can transform complex scientific concepts into simplified, exam-ready knowledge your child can confidently apply.
P3 Science – Life cycles topic
P3 Science Life Cycle of Plants and Animals
- These science revision notes aim to guide your child to:
- Identify and describe the stages of the life cycle of some animals.
- Identify and describe the stages of the life cycle of flowering plants.
- Understand how different conditions affect germination.
- Use proper scientific keywords to explain the concepts clearly.
P3 Science – Classifications Topic
Understand the Classification Charts
- These science revision notes aim to help your child:
- understand flow charts
- identify the relevant characteristics
- Write out your answers clearly.
P3 Science – Classifications Topic
Living and Non-Living Things
- These science revision notes aim to guide your child to:
- classify living and non-living things (what characteristics to look out for?)
- proper scientific keywords to explain the concepts clearly.
P3 Science – Classifications Topic
Characteristics of Living and Non-Living Things
- These science revision notes aim to help your child:
- understand the classification charts.
- Choose the relevant characteristics.
- proper scientific keywords to explain the concepts clearly.
P3 Science – Classifications Topic
Fungi and Bacteria
- These science revision notes aim to guide your child to:
- Understand key traits of fungi and bacteria
- Step-by-step guidance on answering techniques — compare set-ups
- Avoid common exam mistakes
P3 Science – Classifications Topic
Additional notes on living and non-living things
- These science revision notes aim to help your child:
- Describe the importance of air, food and water to the survival of living things.
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Compare the characteristics of animals in different animal groups.
- Explain how external factors affect mould growth.
P3 Science – Diversity of Materials Topic
What properties should you choose?
- These science revision notes aim to guide your child to:
- compare the strength / flexibility / ability absorb water of different materials.
- relate the property of materials to the function of the object.
- use proper scientific keywords to explain the concepts clearly.
P3 Science – Plants Topic
Must-Know Exam Questions
- These science revision notes aim to help your child:
- understand the different plant parts and its functions
- For P5 and P6 students, what other science concepts must you apply?
P3 Science - Human Body System Topic
Must-Know Science Knowledge on Human Systems
- These science revision notes aim to help your child understand the basics of the human body as a system topic.
P3 Science – Bacteria and Fungi Topic
An Experiment on the Bacteria
- These science revision notes aim to help your child:
- Analyse the factors affecting the growth of the bacteria (based on this experiment).
- Make inferences from the graph and the statements in the question.
P3 Science - Light and Shadows Topic
How are Shadows Formed?
- These science revision notes aim to help your child:
- Visualise how the size of the shadow changes as you move objects, torches or the screen around.
- Must-Know exam question inside
P3 Science – Light and Shadows Topic
Apply the Correct Rules
- This particular real-life situation uses a different approach to understand how shadows are formed. Let your child discover this today
P3 Science – Light and Shadows Topic
Factors affecting the Shadows
- These science revision notes aim to help your child:
- Understand how different materials affect the colour of the shadow.
- Understand how different positions of the object affect the size of the shadow.
- How to combine two different concepts (different materials and different positions within the same exam-based question)?
P3 Science – Light and Shadows Topic
Tricky Question on Light and Shadows
(Apply the correct rules)
- These science revision notes aim to help your child:
- identify how different positions affect the size of the shadow.
- Which part of the shadow to look out for?
P3 and P4 Science – Digestive System Topic
Choosing the Relevant Functions
- These science revision notes aim to help your child:
- Choose the relevant functions of the digestive system.
- understand what is a fair test.
P3 and P4 Science – Magnets Topic
Are all metals magnetic materials?
- These revision notes aim to help your child:
- Understand the properties of magnets.
- The different methods to create a magnet
- Are all metals magnetic materials? (e.g. aluminium, copper, nickel, cobalt, gold, silver)
P3 and P4 Science – Digestive System Topic
Stretch Your Understanding with this Question
- This question can confuse many science students, even the Primary 6 students! Read these notes and download it for future revision today.
P4 Science – Plant Systems Topic
All about the Plants for P4 students
- These revision notes aim to help your child:
- Understand the importance of the plant part to the plant’s survival.
- Use proper scientific keywords to explain the concepts clearly.
P4 Science – Matter and its Three states Topic
Must-Know Concepts for Matter and Water
- These science revision notes aim to help your child:
- Understand the difference between mass and volume.
- Understand the concept of matter occupying space.
- Understand the concept of the displacement of matter.
P4 Science – Matter and its Three states Topic
Scientific Calculations
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While calculations aren’t tested in the primary science syllabus, they are crucial for helping your child make sense of real-life science scenarios.
These science revision notes aim to help your child: - Calculate the changes in volume of the object or substance.
- Understand how the properties of matter are applied to this set-up.
P4 Science – Matter and its Three states Topic
Properties of Gas
- These science revision notes aim to help your child:
- identify the correct setup based on the properties of the air.
- proper scientific keywords to explain the concepts clearly.
P4 Science – Matter and its Three states Topic
Which Side Does the Ink Drop Move?
- These science revision notes aim to help your child:
- understand what happens to the gases in each container. Which concept must you apply?
- Predict what happens to the ink drop.
- proper scientific keywords to explain the concepts clearly.
P4 Science – Matter and its Three states Topic
Properties of Matter
- These science revision notes aim to help your child:
- All you need to know about the properties of matter in your syllabus
- proper scientific keywords to explain the concepts clearly.
P4 Science – Human Systems Topic
Exam questions on the digestive systems
- These science revision notes aim to help your child:
- Understand how each part of a system works together to perform a function.
- Interpret graphs on the digestion of food.
- proper scientific keywords to explain the concepts clearly.
P4 Science – Heat and Temperature Topic
Complete Guide to Heat Conductors
- These science revision notes aim to help your child:
- understand good & poor thermal conductors,
- What determines thermal conductivity and heat transfer in materials?
- Proper scientific keywords to explain the concepts clearly.
P4 Science – Heat and Temperature Topic
Must-Know Heat Energy Concepts
- These science revision notes aim to help your child:
- Understand the difference between heat and temperature.
- Relate the expansion and contraction of objects to the gain or loss of heat.
- Compare the heat conductively of different materials.
Life Cycles Topic
All You Need to Know About Plant Life Cycle
- These science revision notes aim to help your child:
- understand the stages in the life cycle of plants.
- characteristics between young and adult plant.
- understand the conditions needed for germination to take place.
- Resolve common misconceptions.
Life Cycles Topic
All You Need to Know About Animal Life Cycle
- These science revision notes aim to help your child:
- understand the stages in the life cycle of animals.
-
understand the different species of animals (You might not like some of them, but they are part of the syllabus
).
- Remember this real-world example of the mosquitoes and how you can stop the spread of harmful diseases.
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