Phase Change Worksheet: Match phase changes to descriptions and identify phase changes in real-life examples.

Let’s solve this step by step.

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Part 1: Match the phase change to its description

We need to match each term on the left with the correct description on the right.

Recall:

- Melting → solid becomes liquid (like ice turning into water)
- Freezing → liquid becomes solid (like water turning into ice)
- Evaporation → liquid becomes gas (like puddles drying up)
- Condensation → gas becomes liquid (like dew on grass)
- Sublimation → solid becomes gas directly (like dry ice disappearing)
- Deposition → gas becomes solid directly (like frost forming from water vapor)

Now match:

✔ MELTING → Change from solid to liquid
✔ FREEZING → Change from liquid to solid
✔ EVAPORATION → Change from liquid to gas
✔ CONDENSATION → Change from gas to liquid
✔ SUBLIMATION → Change from solid to gas
✔ DEPOSITION → Change from gas to solid

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Part 2: Write the correct phase change occurred in each example

1. *The moth balls inside my cabinet disappeared without a trace.*
→ Mothballs go from solid straight to gas → Sublimation

2. *The chocolate in my palm turned to liquid after some time.*
→ Solid chocolate becomes liquid due to body heat → Melting

3. *The juice solidify after I placed it in the fridge.*
→ Liquid juice turns to solid (like making ice pops) → Freezing

4. *Frost formed on the surface of a leaf because of the cold weather.*
→ Water vapor in air turns directly to ice (solid) on leaf → Deposition

5. *The pond dries out during summer time.*
→ Liquid water turns to water vapor (gas) → Evaporation

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Final Answer:

Part 1 Matches:

- MELTING — Change from solid to liquid
- FREEZING — Change from liquid to solid
- EVAPORATION — Change from liquid to gas
- CONDENSATION — Change from gas to liquid
- SUBLIMATION — Change from solid to gas
- DEPOSITION — Change from gas to solid

Part 2 Answers:

1. Sublimation
2. Melting
3. Freezing
4. Deposition
5. Evaporation