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“With your permission
complete with trousers
These four original color editions were released in the so-called B1 version (BDM reference)
easy-to-grasp wooden pieces also invite imaginative play and encourage motor skills
La Chimie de l'Effervescence traduction-ES “With your permissionGas evolution is a common phenomenon in chemistry, found in nature, notably during photosynthesis. Several oxidation reduction experiments can be understood through the solutions color changes as a function of pH, with help from the guide. With this kit, you can also test the pH of a swimming pool, soil, laundry detergent, or water. Required age: 8+ Item dimensions: L1 x W1 x H1 cm
