Summary: Students will observe the iodine color changing clock reaction to learn about reactions and their rates!

Two colorless liquids are mixed together and in a few moments, the mixture will turn a dark blue color. Many different chemical reactions are going on to make this “clock reaction” occur. Students will perform an experiment and record color changes and indicators that a chemical reaction has occurred. Explore how reaction times can be sped up or slowed down. This experiment helps introduce students to rates of reaction and the scientific process. 

 

Iowa Common Core Standard(s): HS-PS1-2,5