proper primary color shades for color wheel experiment

Iodine will turn from yellow/orange to blue in the presence of starch.

Test Your Foods for Starch: use an iodine solution to detect whether or not a food has starch.

Color-changing Cabbage Chemistry: make an indicator solution from cabbage then explore how the color of the indicator solution changes when adding acids and bases.

In the following 'colorful' science experiments, color changes result from a molecular change during a reaction. In cases where directions for independent student science and science fair projects are also available, these 'science project' versions have been noted and linked separately. Activities do not have built-in support for students doing science fair projects. Some of the experiments highlighted below are STEM activities suitable for classroom use, demonstration, informal exploration, or family science. Students can also investigate how human vision detects color and how our brains sort out what we see. These experiments are about the science of color and help students ask and answer science questions about chemical reactions, the physics of light, including wavelength and refraction, how colors of light mix, and more. The collection of student science fair projects and STEM learning resources highlighted here is 'colorful' in a different way. Some experiments are 'colorful' because they use colored water, paints, or other materials as part of the demonstration of science concepts.

23 Color Science Experiments and STEM Activities for Science Class and Science Fair

Proper primary color shades for color wheel experiment