¿Qué es un sólido?

The video explains the characteristics of solid materials, highlighting their fixed shape and inability to change volume without external forces. Solids have tightly packed molecules, making them incompressible. Examples like pizza dough illustrate how solids can change shape but not volume. The video contrasts solids with gases and liquids, emphasizing the unique properties of solids.

Explain the difference between solids and gases or liquids in terms of molecular structure.

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What example is given in the text to illustrate that solids cannot change volume?

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