Material Properties Flowchart – Trampoline Part Z (P3)

Introduction

Flowchart questions can feel confusing because students rush and choose the wrong path. This material properties flowchart question is actually very straightforward—just follow each “Yes/No” decision carefully and match the material to what a trampoline needs.

The Question / Scenario Explanation

Source: P3 Question 3

You are given a flowchart that classifies materials using these questions:

• Is it flexible?
• Does it allow light to pass through?
• Is it strong?

The diagram shows two children bouncing on a trampoline. Part Z is the trampoline surface.

Based on the flowchart, which material, A, B, C or D, is most suitable to make part Z of the trampoline?
Options:
(1) A
(2) B
(3) C
(4) D

Step-by-Step Solution / Explanation

Step 1: Decide what properties part Z must have

Part Z is the trampoline surface where children bounce. So it must be:

• Flexible (so it can stretch and bounce)
• Strong (so it can support the children safely)

Step 2: Follow the flowchart path

We start at “Material”.

Question 1: Is it flexible?

For a trampoline surface, Yes (it must be flexible).
So we follow the Yes arrow down to the next question.

Question 2: Is it strong?

For safety, Yes (it must be strong).
So we follow the Yes arrow.

This leads us to Material D.

✅ Final Answer: Option (4) D

Key Concepts Students Must Know

• A material properties flowchart is solved by reading each decision box in order and following the correct arrow.
• For trampoline surfaces:
  • Flexible helps it bounce and stretch
  • Strong prevents tearing or breaking under weight
• “Allow light to pass through” is not the key property here because trampoline surfaces do not need to be transparent.

Exam Tips / Common Mistakes

Exam Tips

• Before using the flowchart, ask: “What does the object need to do?”
• For trampoline part Z: bounce + support weight → flexible + strong
• Trace the arrows slowly: Flexible (Yes) → Strong (Yes) → D

Common Mistakes

• Choosing a material that is strong but not flexible (it won’t bounce).
• Going to the “light passes through” question even when the first answer should be “Yes, flexible”.
• Not linking the material property to the real-life function of the trampoline.

Parent Insight 

This material properties flowchart skill helps students answer many Primary Science MCQs confidently. If your child struggles, train them to do 2 steps every time:

1. Identify the function (what the object must do)
2. Follow the flowchart path carefully without skipping decision boxes

Conclusion

In this material properties flowchart question, trampoline part Z must be flexible and strong. Following the flowchart: Flexible (Yes) → Strong (Yes) leads to D, so the correct answer is Option (4) D.

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