Olibits / Science / Skeleton & Muscles
Primary 3 Science: Skeleton & Muscles Practice
Real Primary 3 Science questions on Skeleton & Muscles, pulled directly from the Olibits question bank — the same questions a child would actually see, not separately written for this page.
MOE strand: Discovery Science
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 Skeleton & Muscles practice questions
The backbone (spine) is made up of many small bones stacked together. What important part of the body does it protect?
The lungs
The spinal cord ✓
The stomach
The kidneys
The backbone protects the spinal cord, a bundle of nerves that carries messages between the brain and the rest of the body.
In science, what is a "joint"?
A place where two bones meet ✓
A type of skin
A soft body organ
A type of muscle
A joint is where two or more bones meet. Most joints allow the bones to move.
Which of these has a joint that lets you bend your arm: the elbow or the skull?
The elbow ✓
The skull
The elbow is a joint between the upper arm bone and the lower arm bones, and it lets the arm bend. The bones of the skull are fixed and do not move.
The elbow and knee are called hinge joints. How do hinge joints move?
Stretch longer
Move around in a full circle
Bend and straighten, like a door hinge ✓
Change colour
Hinge joints move back and forth in one direction, just like a door hinge, which is why we can bend and straighten our elbows and knees.