The Chemistry of Long-Lasting Lipstick
How do researchers and engineers create a formula for lipstick that is designed and sold as long-lasting? In this Spark 101 case challenge, students will help Procter and Gamble, a company who works to make quality produ…
The Chemistry of Water Quality Tests
How can we ensure that fresh water continues to be available for human use? The Hach company explores the chemistry that goes into the testing of water quality – how to design an environmentally friendly and valuable …