Make your own color-changing slime that changes from green to blue depending on the temperature. Ooze Labs are fun and simple science experiments in big chunky plastic test tubes! Each Ooze Lab tube contains a simple science experiment to create a safe material that is both fun to play with and chemically interesting. For ages 7 yrs-teen, from Thames & Kosmos. WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years.
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