Iodine

Summary: To test for starch, you use iodine solution. Iodine solution is an orange-yellow liquid. 1. Add a few drops of iodine solution to the food solution. 2. If the solution turns a dark blue-black colour, like in. Tags: science student-book-7 biology Created: 2026-05-21 Last Updated: 2026-05-21

Iodine

To test for starch, you use iodine solution. Iodine solution is an orange-yellow liquid. 1. Add a few drops of iodine solution to the food solution. 2. If the solution turns a dark blue-black colour, like in.

Source

This concept is from the [Science Student Book 7](Science Student Book 7/Biology/Health and Lifestyle/3.3 Food tests.md), Biology section.