Home Past papers Science P5 Science CA1 2025 — Henry Park
P5 Science CA1 2025 — Henry Park
P5
Science
2025
CA1
12 questions
15 marks
Source: Henry Park, 2025
This P5 Science CA1 paper from Henry Park (2025) covers materials, plants and animals and life cycles across 12 questions worth 15 marks. Practise Science the way it's tested at P5 level in Singapore, with step-by-step answers on LearnBuddy.
← More P5 Science past-year papers
Q1 Q1 Q1 Q1 Q1 Q2 Q2 Q2 Q2 Q3 Q3 Q3
Q1
Open-ended
2 marks
🖼 Visual
Visual context
A diagram shows a beaker labeled 'mixture' containing two materials. Another diagram shows a small plastic bag labeled 'plastic bag' containing an object labeled 'Q'. A third diagram shows an empty beaker labeled 'An empty beaker'.
Describe how you separated the two materials from the mixture using object Q.
Sign up free to write your answer — AskBuddy AI will mark it instantly and explain where you went wrong.
Sign up free
Q1
Open-ended
🖼 Visual
Visual context
A diagram shows a beaker labeled 'mixture' containing two materials. Another diagram shows a small plastic bag labeled 'plastic bag' containing an object labeled 'Q'. A third diagram shows an empty beaker labeled 'An empty beaker'.
After you have separated one of the materials from the mixture using object Q, place the material and object Q in the empty beaker.
Attempt the rest of the questions given.
Your teacher will check the materials in both breakers after you have separated them.
Sign up free to write your answer — AskBuddy AI will mark it instantly and explain where you went wrong.
Sign up free
Q1
Open-ended
🖼 Visual
Visual context
A diagram shows a beaker labeled 'mixture' containing two materials. Another diagram shows a small plastic bag labeled 'plastic bag' containing an object labeled 'Q'. A third diagram shows an empty beaker labeled 'An empty beaker'.
Use object Q to separate the materials in the mixture. Do not remove object Q from the plastic bag.
Sign up free to write your answer — AskBuddy AI will mark it instantly and explain where you went wrong.
Sign up free
Q1
Open-ended
🖼 Visual
Visual context
A diagram shows a beaker labeled 'mixture' containing two materials. Another diagram shows a small plastic bag labeled 'plastic bag' containing an object labeled 'Q'. A third diagram shows an empty beaker labeled 'An empty beaker'.
Observe the mixture carefully.
Sign up free to write your answer — AskBuddy AI will mark it instantly and explain where you went wrong.
Sign up free
Q1
Open-ended
2 marks
🖼 Visual
Visual context
A diagram shows a beaker labeled 'mixture' containing two materials. Another diagram shows a small plastic bag labeled 'plastic bag' containing an object labeled 'Q'. A third diagram shows an empty beaker labeled 'An empty beaker'.
Explain why object Q is able to remove only one material from the mixture.
Sign up free to write your answer — AskBuddy AI will mark it instantly and explain where you went wrong.
Sign up free
Q2
Open-ended
2 marks
🖼 Visual
Visual context
Fruits of plant T are mentioned, but no visual is provided on this page. The question refers to a physical observation of the fruit that would be provided in a real exam setting.
Based on your observation, explain your answer in part (c).
Sign up free to write your answer — AskBuddy AI will mark it instantly and explain where you went wrong.
Sign up free
Q2
Open-ended
1 mark
Why do plants reproduce?
Sign up free to write your answer — AskBuddy AI will mark it instantly and explain where you went wrong.
Sign up free
Q2
Open-ended
1 mark
How do flowering plants reproduce?
Flowering plants reproduce by
Sign up free to write your answer — AskBuddy AI will mark it instantly and explain where you went wrong.
Sign up free
Q2
MCQ
1 mark
🖼 Visual
Visual context
Fruits of plant T are mentioned, but no visual is provided on this page. The question refers to a physical observation of the fruit that would be provided in a real exam setting.
How do you think the fruits of plant T are dispersed?
Circle the correct answer. (by water | by animals | by splitting | by wind)
by water
by animals
by splitting
by wind
Explanation
Based on the explanation given for part (d), the fruit of plant T has a 'parachute-like part'. This structural adaptation is characteristic of fruits that are dispersed by wind, allowing them to be carried over long distances.
Q3
Open-ended
2 marks
🖼 Visual
Visual context
A diagram shows a pair of spectacles, with one of the lenses clearly labeled 'Z'. Below it, a rectangular block is shown, labeled 'Material W'.
Explain your answer for part (a)(i).
Sign up free to write your answer — AskBuddy AI will mark it instantly and explain where you went wrong.
Sign up free
Q3
Structured
2 marks
🖼 Visual
Visual context
A diagram shows a pair of spectacles, with one of the lenses clearly labeled 'Z'. Below it, a rectangular block is shown, labeled 'Material W'.
Besides strength, state two other properties that Ahmad needs to test in order to confirm if material W is suitable to make part Z.
Sign up free to write your answer — AskBuddy AI will mark it instantly and explain where you went wrong.
Sign up free
Q3
Structured
2 marks
🖼 Visual
Visual context
A diagram shows a pair of spectacles, with one of the lenses clearly labeled 'Z'. Below it, a rectangular block is shown, labeled 'Material W'. The answer key also includes a diagram showing a torch shining light through Material W.
State the property you have mentioned in part (a)(ii).
Describe how Ahmad could test material W for this property.
Or you may draw and label how the set-up looks like for testing the material.
Sign up free to write your answer — AskBuddy AI will mark it instantly and explain where you went wrong.
Sign up free
