Children's book Non-Wetting Sand and dot Let's enjoy experiments and games with the mysterious sand!

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Children's Book
Science and Learning PRESENTS / The mysterious sand that will never get wet even if it is soaked in water. You can enjoy more than 30 surprising experiments created by the water-repellent effect of the sand. You can also create a maze game using the dot that is created when the sand repels water. It is also useful for independent research as it has a book that tells you about the water-repellent effect and the surface tension of water.