Pigments, cups, a glass of water, small sticks, oil Experimental steps: 1. Pour a proper amount of cooking oil into the cup. 2. Pour the pigment into the cup. 3. Stir the pigment and oil with a small wooden stick. 4. Pour the mixture of oil and pigment into the water and let stand for a while. 5, then you can see the beautiful raindrops falling in the cup. Experimental principle: Oil and water are not compatible. The density of oil is smaller than that of water, so the oil will float on the water, and the pigment can be dissolved in oil and dissolved in water, so this effect is produced by gravity. Silicone Bib ,Silicone Bib With Pocket,Silicone Feeding Bib,Silicone Catch Bib MeMe Baby Product (GZ) LLC , https://www.gzkupbo.com
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