Why is glass see-through?
Brains On! Science podcast for kids
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What Happens When You Heat a Silica Sand?
silica sand is made up of super ultra tiny building blocks called atoms. And those atoms join together to make bigger building blocks called molecules. But when we start heating that silica sand way up, the invisible bonds between the molecules are broken and the molecules get all jumbled up. It's kind of like what happens with ice. The molecules in a solid cube of ice are held together in a very organized pattern. As that ice cube melts, the molecules get jumpled up and become water. When it cools and becomes solid again, the molecule stay allJumbled up. Back in mine molecules, its weofelt like thii, only sop so fa. I give
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