Olibits / Science / Classifying Living Things
Primary 3 Science: Classifying Living Things Practice
Real Primary 3 Science questions on Classifying Living Things, 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 Classifying Living Things practice questions
Scientists classify living things by whether they have a backbone. Based on this, is a housefly a vertebrate or an invertebrate?
Invertebrate ✓
Vertebrate
A housefly has a hard outer body case (exoskeleton) but no backbone inside. Animals with a backbone are called vertebrates, and animals without one are called invertebrates.
Scientists classify living things by whether they have a backbone. Based on this, is a garden snail a vertebrate or an invertebrate?
Invertebrate ✓
Vertebrate
A garden snail has a soft body protected by a shell, but no backbone. Animals with a backbone are called vertebrates, and animals without one are called invertebrates.
Scientists classify living things by whether they have a backbone. Based on this, is a jellyfish a vertebrate or an invertebrate?
Invertebrate ✓
Vertebrate
A jellyfish has a soft, jelly-like body and no backbone or any bones. Animals with a backbone are called vertebrates, and animals without one are called invertebrates.
Scientists classify living things by whether they have a backbone. Based on this, is a goldfish a vertebrate or an invertebrate?
Invertebrate
Vertebrate ✓
A goldfish has a bony skeleton and a backbone running down its body. Animals with a backbone are called vertebrates, and animals without one are called invertebrates.