Case study·Hard exam skill (4/5)·No calculator
Difficulty guide
The label describes the problem, not your ability.
1/5 - Foundational
Warm-up setup; checks one basic idea.
2/5 - Routine exam skill
Normal syllabus skill; usually one main rule or interpretation.
3/5 - Standard multi-step
Exam-style problem with multiple steps or a common trap.
4/5 - Hard exam skill
High-end exam problem; combines methods carefully.
5/5 - Challenge
Stretch problem beyond normal exam pressure.
Question
A class measures air temperature at a sandy playground and near a pond at noon. The playground is warmer, and students feel a breeze from the pond toward the playground.
Total: 4 marks
(a) Which surface heated more? (1 mark)
(b) Where is air more likely to rise? (1 mark)
(c) Explain the breeze direction. (1 mark)
(d) Name the coastal breeze that is similar to this pattern. (1 mark)
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