Sentosphere Chemistry of Effervescence

What we like about this toy...
Off-gassing is a frequent chemical phenomenon found in nature, notably during photosynthesis. In this kit, several redox experiments are understood thanks to the solution that changes colour according to the pH it holds. These fun experiments will help you better understand chemistry! 8 years+ Made in France

What makes this toy great...
Perfect from 8 years.

CONTENTS:• 1 support for test tube • 3 test tubes • 1 measuring small spoon • 2 baloons • 2 coloured reagents • 1 pot of citric acid • 1 pot de bicarbonate of soda • 1 pair of security glasses • 1 set of instructions