UNC-TV CPB
Phases of Matter

Phase Changes Review

Now that you've learned about the behavior of molecules and atoms when a substance undergoes a phase-of-matter change, check your understanding with this Match It quiz.

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1. Adding thermal energy makes particles move FASTER.

2. When an ice cube MELTS, thermal energy breaks the forces keeping the particles rigid.

3. When water boils, THERMAL ENERGY makes the particles move fast enough.

4. Almost all MATTER can freeze, melt or boil.

5. Regardless of the PHASE, the type of particles in a substance is the same.

 

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