Educational worksheet on phase changes in matter, featuring matching and application exercises.

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.

Here are the standard definitions:

- Melting: solid → liquid
- Freezing: liquid → solid
- Evaporation: liquid → gas (happens at surface, below boiling point)
- Condensation: gas → liquid
- Sublimation: solid → gas (without becoming liquid first)
- Deposition: gas → solid (opposite of sublimation)

Now let’s match them:

1. MELTING → Change from solid to liquid ✔
2. FREEZING → Change from liquid to solid ✔
3. EVAPORATION → Change from liquid to gas ✔
4. CONDENSATION → Change from gas to liquid ✔
5. SUBLIMATION → Change from solid to gas ✔
6. DEPOSITION → Change from gas to solid ✔

So the correct matches are:

- 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

*(Note: The worksheet has descriptions listed in a different order — we must pair based on meaning, not position.)*

Looking at the right-hand column as given:

Right side options (in order):

A. Change from solid to gas → Sublimation
B. Change from gas to liquid → Condensation
C. Change from liquid to solid → Freezing
D. Change from gas to solid → Deposition
E. Change from solid to liquid → Melting
F. Change from liquid to gas → Evaporation

So matching left to right correctly:

- MELTING → E
- FREEZING → C
- EVAPORATION → F
- CONDENSATION → B
- SUBLIMATION → A
- DEPOSITION → D

But since the question just says “match”, and doesn’t require letter codes, we’ll write the correct phrase next to each term for clarity in Part 2 context.

Actually — looking again, the worksheet shows dots to connect. Since we’re solving it textually, we’ll list the correct pairing per term.

✔ Final Matching for Part 1:

- 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.

Let’s go one by one.

1. The moth balls inside my cabinet disappeared without a trace.
→ Mothballs are solid. They turn directly into gas (that’s why you smell them). No liquid stage.
→ This is sublimation.

2. The chocolate in my palm turned to liquid after some time.
→ Solid chocolate becomes liquid because your hand is warm.
→ This is melting.

3. The juice solidify after I placed it in the fridge.
→ Liquid juice turns into solid (like popsicle).
→ This is freezing.

4. Frost formed on the surface of a leaf because of the cold weather.
→ Frost is ice crystals that form when water vapor (gas) in air touches cold surface and turns directly to solid.
→ This is deposition.

5. The pond dries out during summer time.
→ Water (liquid) turns into water vapor (gas) due to heat. Happens slowly at surface.
→ This is evaporation.

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Final Answer:

Part 1:
- 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:
1. Sublimation
2. Melting
3. Freezing
4. Deposition
5. Evaporation