United Scientific® Chemistry of Invisible Inks STEM Kit – Hands-On Science Activity Set for Grades 6–12

Explore the secret science of hidden messages with the United Scientific® Chemistry of Invisible Inks STEM Kit. Designed for classrooms, homeschoolers, and STEM clubs, this interactive kit introduces students to the fascinating chemistry and physics behind invisible inks. Learners use organic fluids and chemical reagents to create and decode messages—just like real spies, scientists, and secret agents!

Perfect for hands-on group learning, the kit includes two detailed activities (with both guided and inquiry-based versions), supporting up to 40 students. Students dive into real-world applications of pH indicators, fluorescent compounds, and chemical reactions. A DVD with printable Teacher and Student Guides and digital resources is included to support easy implementation in any classroom.