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Primary 3 Science Systems Quiz
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Questions
TuitionGoWhere Primary School (AI)
Primary 3 Science - Systems Quiz 01
Name: _________________________ Date: _____________
Class: _________________________ Score: ______ / 15
Section A: Multiple Choice Questions (1 mark each)
1. What is a system?
A) A single object
B) Parts working together for a purpose
C) Something that does not move
D) Any living thing
2. Which of the following is NOT a part of a plant system?
A) Roots
B) Stem
C) Wheels
D) Leaves
3. What is the main function of the roots in a plant?
A) To make food
B) To absorb water and nutrients
C) To produce flowers
D) To store sunlight
4. In a bicycle system, what do the wheels help to do?
A) Stop the bicycle
B) Move the bicycle
C) Ring the bell
D) Change gears
5. What happens to a plant if its roots are damaged?
A) It grows faster
B) It makes more flowers
C) It cannot absorb water properly
D) Its leaves become larger
Section B: Short Answer Questions (2 marks each)
6. Name three parts of a plant system and their functions.
Answer: ___________________________________________________
7. What is the function of the stem in a plant?
Answer: ___________________________________________________
8. Give an example of a man-made system and name two of its parts.
Answer: ___________________________________________________
9. Why is a plant considered a system?
Answer: ___________________________________________________
10. What would happen to a bicycle if one of its wheels was removed?
Answer: ___________________________________________________
Section C: Application Questions (2 marks each)
11. A torch is a system. Name two parts of a torch and explain what they do.
Answer: ___________________________________________________
12. If a plant's leaves were removed, how would this affect the plant?
Answer: ___________________________________________________
13. Compare a plant system to a bicycle system. How are they similar?
Answer: ___________________________________________________
14. Ahmad removed the chain from his bicycle. Can he still ride it? Explain.
Answer: ___________________________________________________
15. Look at the human body as a system. Name two parts (organs) and their functions.
Answer: ___________________________________________________
End of Quiz
Answers
TuitionGoWhere Primary School (AI)
Primary 3 Science - Systems Quiz 01 - Answer Key
Section A: Multiple Choice Questions (1 mark each)
1. B) Parts working together for a purpose
A system is made up of different parts that work together to perform a function.
2. C) Wheels
Wheels are not part of a plant system. Roots, stem, and leaves are all parts of a plant.
3. B) To absorb water and nutrients
Roots absorb water and nutrients from the soil for the plant.
4. B) Move the bicycle
Wheels help the bicycle to move along the ground.
5. C) It cannot absorb water properly
Damaged roots cannot absorb water and nutrients, which affects the whole plant.
Section B: Short Answer Questions (2 marks each)
6. Any three of:
- Roots: Absorb water and nutrients; anchor the plant
- Stem: Transports water and nutrients; supports the plant
- Leaves: Make food through photosynthesis; gas exchange
- Flowers: Reproduction; produce seeds
Award 2 marks for three parts with functions
7. The stem transports water and nutrients from the roots to other parts of the plant. It also supports the plant and holds up the leaves and flowers.
Award 2 marks for mentioning transport and/or support
8. Examples:
- Bicycle: wheels, chain, pedals, handlebars, brakes
- Torch: batteries, bulb, switch, casing
- Clock: hands, batteries, gears, face
Award 1 mark for system name, 1 mark for two parts
9. A plant is a system because it has different parts (roots, stem, leaves, flowers) that work together to help the plant survive, grow, and reproduce.
Award 2 marks for mentioning parts working together for survival/growth
10. The bicycle would not be able to move properly or balance. A bicycle needs all its parts, including both wheels, to function as intended.
Award 2 marks for explaining bicycle cannot function properly
Section C: Application Questions (2 marks each)
11. Any two parts with functions:
- Battery: Provides electrical energy/power
- Bulb: Produces light
- Switch: Turns the torch on and off
- Casing: Holds all parts together and protects them
Award 1 mark for each part with correct function
12. The plant would not be able to make food because leaves are where photosynthesis happens. Without leaves, the plant cannot make its own food and may eventually die.
Award 2 marks for mentioning cannot make food/photosynthesis
13. Both are systems with different parts working together for a purpose. In both cases, if one part is missing or damaged, the whole system will not work properly.
Award 2 marks for mentioning parts working together and interdependence
14. No, he cannot ride it properly. The chain connects the pedals to the back wheel. Without the chain, when Ahmad pedals, the movement cannot be transferred to the wheel, so the bicycle will not move.
Award 2 marks for explaining chain transfers movement from pedals to wheels
15. Any two organs with functions:
- Heart: Pumps blood around the body
- Lungs: Help us breathe; take in oxygen
- Brain: Controls the body; helps us think
- Stomach: Digests food
Award 1 mark for each organ with correct function
Marking Scheme Summary
- Section A: 5 marks (5 questions × 1 mark)
- Section B: 10 marks (5 questions × 2 marks)
- Section C: 10 marks (5 questions × 2 marks)
- Total: 25 marks
End of Answer Key