Primary 4 Science: Light Practice
Real Primary 4 Science questions on Light, pulled directly from the Olibits question bank — the same questions a child would actually see, not separately written for this page.
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.
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Real Light practice questions
A pupil looks around a dark room for something that gives off its own light, rather than something that only shines because light from elsewhere hits it. Which of these is a true source of light?
A shiny spoon
The Sun ✓
The Moon
A mirror
The Sun produces its own light; the spoon, Moon and mirror only appear bright because they reflect light from another source.
Of these four objects found in a bedroom at night, which one is producing its own light rather than just reflecting light from elsewhere?
A book
A pair of glasses
A lit torch ✓
A wall
A lit torch produces its own light; the book, glasses and wall can only be seen because they reflect light shining on them.
A torch shining on a ball casts a sharp, clear-edged shadow on the wall behind it. What does this sharp shadow tell us about how light from the torch travels to the ball?
It travels in a straight line ✓
It travels in a curved path
It travels in a circular path
It travels in a zig-zag path
A sharp, well-defined shadow forms because light travels in straight lines and is completely blocked where the ball is in its path.
A pupil holds up a sheet of clean, clear glass and can see the objects behind it sharply and clearly, as if the glass were barely there. What term describes this kind of material?
Translucent materials
Reflective materials only
Opaque materials
Transparent materials ✓
Materials that let almost all light through, letting objects be seen clearly, are called transparent materials.