Learn how to create a Layered Rainbow in a Tube. This activity allows kids to create a liquid rainbow using liquids that vary in density. Making a rainbow in a tube is an easy and safe experiment that you can do with some common household items. Have fun with experiments with HooplaKidzLab! Click Here to Subscribe to HooplaKidzLab: http://www.youtube.com/subscription_center?add_user=hooplakidzlab Please leave your comments in the comments section. Your feedback will be appreciated. Thanks for watching!! Like ! Share ! Comment ! Subscribe !