Original sentence
A suntan is the darkening of the skin caused by the sun. It darkens to help protect the skin from getting sunburned.
Corrected version
A suntan is the darkening of the skin caused by the sun. It darkens to help protect the skin from sunburn.
Steps I used to fix it
- Remove unnecessary words and repeat ideas for clarity.
- Keep the meaning the same: sun causes darkening, which helps protect from sunburn.
- Use simple language appropriate for a 7-year-old.
Notes
- Use sun as both the cause and the protection context (no need for the sun after the first sentence).
- The concept of protection is correct, but you can simplify to avoid confusion: to help protect the skin from sunburn.