Olibits / Science
Science practice for Singapore Primary 1–6 (P3–P6 MOE-aligned, P1–P2 Discovery Science enrichment)
Science formally starts at Primary 3 under MOE's own syllabus, and Olibits' P3–P6 content follows that syllabus directly. P1–P2 Science on Olibits is offered as Discovery Science enrichment: real, adaptive practice that goes beyond what's formally taught at those grades, not a claim of syllabus coverage.
What's covered
Curriculum alignment
Science Teaching & Learning Syllabus, Primary Three to Six (MOE, 2023 syllabus)
Science is not a taught subject at P1/P2 under MOE's own syllabus — our P1/P2 Science content is offered as enrichment beyond the official syllabus, not as a claim of syllabus coverage at those grades.
Olibits is an independent learning platform and is not affiliated with or endorsed by the Ministry of Education. See our FAQ for the full breakdown.
Where students commonly get stuck
- Distinguishing observation from inference in open-ended answers, which MOE's Science papers specifically test.
- Diversity and classification questions, where a living thing fits more than one category depending on the criteria used.
- Energy and forces questions that require applying a concept to a new, unfamiliar scenario rather than recalling a definition.
Parent tip
For open-ended Science answers, ask your child to first state what they observed, then separately what they think it means. MOE's marking scheme rewards that structure specifically, and it's a habit, not just knowledge.
Real Science practice questions
Pulled directly from the live Olibits question bank: the same questions a child would actually see, not separately written for this page.
P1 · Parts of My Body
Which part of your face has two nostrils that you use for breathing?
Ears
Mouth
Nose ✓
Chin
Our nose has two nostrils that we use to breathe air in and out.
P2 · Light and Shadows
Which of these does NOT give out its own light?
The Sun
The Moon ✓
A light bulb
A burning candle
The Moon does not make its own light — it only reflects light from the Sun, unlike the Sun, a candle, or a bulb.
P3 · Classifying Living Things
A dolphin lives its whole life in the sea, but is it correctly classified as a fish or a mammal?
It is a mammal, because it breathes air and feeds its calf with milk ✓
It is an amphibian, because it swims
It is a fish, because it lives in water
It is a reptile, because it is large
A dolphin must come to the surface to breathe air with lungs, and it feeds its calf with milk. These mammal features matter more for classification than where the animal lives.
P4 · States of Matter
Which state of matter can be easily poured and settles to take up the shape of the bottom of its container?
Ice
Liquid ✓
Gas
Solid
A liquid flows and settles to take the shape of the bottom of whatever container holds it, while keeping the same total volume.
P5 · Human System — Respiratory and Circulatory Systems / Integration
Why is it important that the circulatory, respiratory, digestive and excretory systems all work together, rather than functioning separately?
The systems compete with each other for the same resources and normally work against one another
Only one system is actually needed for the human body to survive
Each system depends on the others to supply what it needs and remove what it doesn't, keeping the whole body functioning properly ✓
Each system works in complete isolation and never affects the others
The body's systems are interconnected — for example, the circulatory system depends on the respiratory system for oxygen and the digestive system for nutrients.
P6 · Photosynthesis & Respiration
A mouse and a healthy green plant are sealed together in a glass jar placed in bright light. How does this affect the mouse compared to being alone in a jar?
There is no difference, since plants do not affect the air inside the jar
The mouse dies faster than if it were alone, as the plant competes for oxygen
The mouse still dies quickly, because plants only produce carbon dioxide
The mouse can survive longer, as the plant produces oxygen through photosynthesis for the mouse to use ✓
In the light, the plant photosynthesises, producing oxygen for the mouse and using up the carbon dioxide the mouse breathes out — a mutual gas exchange that helps the mouse survive longer.