기능

• Highly visible grains of different sizes in three colors are enclosed in a highly viscous solution.
• The grains slowly fall and accumulate, so you can observe them.
• Since it is a kit, each child can observe it and understand it more easily.
• The kit contains materials that can be used to make 20 single layer types.
• If you use the attached silicon tube for application, you can make 10 2 layer types.