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How can substances change? Observe the material in the demonstration. What do you think the atoms in the solid material look like?

User Tbergq
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Substances can change in many ways, but the atoms that make them up stay the same.

Substances can change by rearranging their atoms, which are like puzzle pieces in a solid material.

When a solid changes, the arrangement of atoms changes, but the chemical composition of the substance remains the same.

User Riotera
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