This is one of the coolest chemistry kits around! The National Geographic Cool Reaction Chemistry Kit has everything your children need to conduct five amazing experiments. They’ll make messages appear and disappear, create fizzy, bubbling reactions, and more! A detailed experiment guide takes you step-by-step through each experiment and includes insight into the pH science and chemical reactions that make this kit so much fun! The information provided here is as complete and accurate as possible; however, product names, colours and/or materials are subject to change without notice.