Interactive worksheet for learning phase changes and thermodynamics concepts using a phase change diagram.

Educational worksheet: States of Matter. Download and print for classroom or home learning activities.

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Show Answer Key & Explanations Step-by-step solution for: States of Matter

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- MELTING: Right arrow on the first horizontal plateau (solid to liquid)
- FREEZING: Left arrow on the first horizontal plateau (liquid to solid)
- CONDENSATION: Left arrow on the second horizontal plateau (gas to liquid)
- EVAPORATION: Right arrow on the second horizontal plateau (liquid to gas)

- A process where heat is released from the system into the surroundings. EXOTHERMIC
- A process where heat is absorbed by the system from the surroundings. ENDOTHERMIC
- A process that changes only the state, shape, size, and / or form of a substance. PHYSICAL CHANGE
- A process that changes the original substance into a new substance. CHEMICAL CHANGE

- MELTING: ENDOTHERMIC
- FREEZING: EXOTHERMIC
- EVAPORATION: ENDOTHERMIC
- CONDENSATION: EXOTHERMIC
- DEPOSITION: EXOTHERMIC
- SUBLIMATION: ENDOTHERMIC

Parent Tip: Review the logic above to help your child master the concept of phase change diagram worksheets.

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