Introduction
Understanding PSLE Science Heat Transfer Ice Cubes Question is important for mastering the Heat topic. Many students lose marks because they confuse temperature change with state change.
In this PSLE Science Heat Transfer Ice Cubes Question, we analyse heat transfer between a metal straw, ice cubes, and cold water — a classic PSLE exam scenario.
The Question
Rebecca added ice cubes and a metal straw at room temperature (30°C) into cold water (8°C).
Which observation is correct within the first 10 minutes?
Students must determine:
- Temperature change of the metal straw
- State change of ice cubes
Step-by-Step Explanation (Teacher Working)
Step 1 — Compare Temperatures
- Metal straw = 30°C
- Ice = 0°C
- Cold water = 8°C
Heat flows from higher temperature → lower temperature
Step 2 — Heat Transfer Direction
Heat moves:
Metal Straw → Water → Ice Cubes
Step 3 — Effect on Metal Straw
Since straw loses heat → Temperature decreases
Step 4 — Effect on Ice Cubes
Ice receives heat → Changes from
Solid → Liquid (Melting)
Final Answer
✔ Straw temperature decreases
✔ Ice changes from solid to liquid
✔ Correct Option = Option 4
Key Concepts
Heat Transfer
Heat flows from hotter objects to colder objects.
State Change
Ice melts when heat is gained.
Temperature vs State
Temperature drop ≠ State change
Must analyse energy flow carefully.
Tips for Students
✔ Always compare temperatures first
✔ Remember heat flows hot → cold
✔ Ice melting means heat is gained
✔ Metal cools when losing heat
For Parents
This topic helps students develop:
- Logical scientific reasoning
- Data interpretation skills
- PSLE exam answering techniques
Heat transfer questions are very common in PSLE exams.
Conclusion
This PSLE Science Heat Transfer Ice Cubes Question teaches students how to apply real heat transfer concepts in exam questions.
Always:
- Compare temperatures
- Track heat flow direction
- Link heat transfer to state change
Mastering this PSLE Science Heat Transfer Ice Cubes Question improves PSLE exam confidence significantly.