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colored glass (solid foam, liquid foam)​

Sagot :

Answer:

PROBABLY ITS COLLOIDS

Explanation:

Colloids include gels, sols, and emulsions; the particles do not settle, and cannot be separated out by ordinary filtering or centrifuging like those in a suspension.

Answer:

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CHEMISTRY

Fact or Fiction?: Glass Is a (Supercooled) Liquid

Are medieval windows melting?

By Ciara Curtin on February 22, 2007

Fact or Fiction?: Glass Is a (Supercooled) Liquid

Credit: Bill Heinsohn Getty Images

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In medieval European cathedrals, the glass sometimes looks odd. Some panes are thicker at the bottom than they are at the top. The seemingly solid glass appears to have melted. This is evidence, say tour guides, Internet rumors and even high school chemistry teachers, that glass is actually a liquid. And, because glass is hard, it must be a supercooled liquid.