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Primary 6 PSLE Science Diversity Quiz
Free P6 PSLE Science Diversity quiz, Ox Exam version, with questions, answers, and PSLE-focused practice for Singapore students.
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Questions
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Answers
Primary 6 PSLE Science Quiz – Diversity: Answer Key
Answer 1.
Leather belt (made from animal hide, which was once alive).
Answer 2.
Growth.
Answer 3.
Fungi.
Answer 4.
It cannot make its own food (no chlorophyll); it feeds on dead/decaying matter.
Answer 5.
Reptiles.
Answer 6.
Plants: hibiscus, fern, grass. Fungi: bread mould, bracket fungus, yeast. Difference used: plants make their own food; fungi do not (they feed on other organisms/decaying matter).
Answer 7.
Dolphin – mammal; penguin – bird; crocodile – reptile; frog – amphibian; goldfish – fish.
Answer 8.
Choose the plastic sheet. Most important property: waterproof and flexible (light), so it keeps rain out and can be folded. Cotton is unsuitable because it absorbs water. Glass is unsuitable because it is stiff and brittle – it breaks instead of folding.
Answer 9.
Difference 1: Flowering plants produce flowers; non-flowering plants do not. Difference 2: Flowering plants reproduce by seeds formed in fruits; non-flowering plants reproduce by spores (e.g., ferns) or naked seeds (e.g., pine).
Answer 10.
(a) B – organism X has no feathers (go to 2), then has fur (2a → B). (b) Mammal – animals with fur that feed their young with milk are mammals.
Answer 11.
(a) Plants (b) Fungi (c) Animals
Answer 12.
Aluminium – it is strong and does not rot or rust easily, so it lasts outdoors. Wood is less suitable because it can rot in wet weather. Glass is less suitable because it is brittle and shatters easily.
Answer 13.
Any four: movement (of part of the body); respiration; sensitivity (responding to changes); growth; reproduction; excretion; nutrition (feeding).
Answer 14.
(a) Vertebrates have backbones; invertebrates do not have backbones. (b) Butterfly, snail, prawn. (c) No, he is incorrect. An earthworm has no backbone, so it is an invertebrate.
Answer 15.
(a) Fungi. (b) It absorbs nutrients from the dead log (feeds on dead/decaying matter). (c) They break down dead organisms and return nutrients to the soil (they act as decomposers).
Answer 16.
(a) Plants: fern, moss. Fungi: mushroom, bread mould. (b) Both are green and make their own food (contain chlorophyll). (c) Both do not make their own food; they feed on dead/decaying matter (both reproduce by spores also accepted). (d) They grow, reproduce and respond to changes around them.
Answer 17.
(a) Difference 1: A fish is covered with scales; a frog has moist skin without scales. Difference 2: An adult fish breathes only through gills; an adult frog breathes mainly with lungs (and through its moist skin). (b) Both lay eggs in water (their young live in water).
Answer 18.
(a) The type of material (paper, plastic, cloth). (b) Any two: size of each material piece; volume of water poured (50 ml); same funnels/measuring method. (c) Cloth. (d) To confirm her results are reliable (to check the results are consistent).
Answer 19.
Once alive: wooden ruler, cotton T-shirt, paper bag. Never alive: steel spoon, glass bottle, stone.
Answer 20.
(a) Plants. (b) Reason 1: It has green leaves, so it can make its own food. Reason 2: It produces flowers and fruits, and cannot move from place to place on its own. (c) A flowering plant.