# A manufacturer produces a sunscreen lotion and claims it is a formulation. Explain what is meant by a formulation and describe two features that make a sunscreen lotion an example of one.

> WJEC GCSE Chemistry (Wales) — 1.4 The ever-changing Earth · Explain · 4 marks

## Mark scheme (4 marks)

1. A formulation is a mixture designed for a particular use
2. It is made up of exact/carefully measured quantities of pure substances
3. Each chemical/component in the sunscreen has a particular purpose
4. The components are mixed in specific quantities to give the product the required properties

## Key terms

- [formulation](https://www.gradenine.co.uk/glossary/formulation)

## Related

- [Revision notes for WJEC GCSE Chemistry (Wales)](https://www.gradenine.co.uk/learn)
- [How to answer "Explain" questions](https://www.gradenine.co.uk/tools/command-word-cheatsheet)
- [Practice this with AI marking (free)](https://www.gradenine.co.uk/start)

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Source: [GradeNine](https://www.gradenine.co.uk/q/a-manufacturer-produces-a-sunscreen-lotion-73374410) · Published by Druglandscape Ltd.