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Chemistry & Technology · Part 2 of 4
3 exam-style questions with model answers, plus 4 quick multi-choice questions — every question on this part of the standard, grouped by the 1 page of notes they come from.
Write a full answer before you reveal the model one. That comparison is where the learning happens.
Describe the two main types of UV filter used in sunscreen and explain how each protects the skin.
Explain why a broad spectrum sunscreen must contain several different active ingredients, linking this to the structure of the filter molecules.
Evaluate how the chemistry of UV filters has influenced the development of sunscreen, considering both what it enabled and what it constrained.