Educational worksheet on the changing states of water, including phase transitions and temperature scales.

Let's solve the worksheet titled "Changing Water" step by step and explain each answer.

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Part 1: Fill in the blank lines with a vocabulary word from the box.

The vocabulary words are:
- melting
- heating
- boiling
- condensing
- evaporating

Now let’s go through each sentence:

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1. _______ is when liquid water turns into ice.

✔ Answer: *Freezing* — but wait! "Freezing" isn't in the box. The box has: melting, heating, boiling, condensing, evaporating.

But melting is the opposite (solid → liquid). So this one seems tricky.

Wait — actually, the correct term for liquid → ice is freezing, but it's not in the list. That might be an error.

But look again: the sentence says "liquid water turns into ice" — that’s freezing, which is not in the box.

Hmm. Let’s double-check the words:
- melting – solid → liquid
- heating – adds energy, causes change
- boiling – liquid → vapor at high temp
- condensing – vapor → liquid
- evaporating – liquid → vapor slowly

So none of these directly say “liquid to ice.” But melting is the reverse.

Wait — maybe there's a mistake in the question? Or perhaps we’re supposed to use "freezing", but it's not listed.

But the instructions say: *"Fill in the blank lines with a vocabulary word from the box."*

So only those five words can be used.

Let’s check if any of them could fit.

Actually, none of the given words describe liquid → ice.

But maybe the intended answer is "melting"? No — that’s backwards.

Wait — perhaps the question is miswritten?

Let me re-express:

> 1. _______ is when liquid water turns into ice.

This should be freezing, but it's not in the box.

But perhaps the intended word is "condensing"? No — that's vapor → liquid.

No.

Wait — maybe the word "heating" is being used incorrectly?

No.

Alternatively, perhaps the word "cooling" is missing? But it's not in the box.

This seems like an error in the worksheet.

But let's move on and see if we can figure out what they expect.

Wait — maybe the question is reversed?

Let’s read all the questions carefully.

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2. _______ is when ice turns into liquid water.

✔ This is melting.

So:
> 2. melting is when ice turns into liquid water.

✔️ Correct.

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3. _______ is when water vapor turns into liquid water.

✔ This is condensing.

> 3. condensing is when water vapor turns into liquid water.

✔️ Correct.

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4. _______ is when liquid water slowly dries up and turns into water vapor.

✔ This is evaporating.

> 4. evaporating is when liquid water slowly dries up and turns into water vapor.

✔️ Correct.

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5. _______ is when liquid water is heated to a high temperature and quickly turns into water vapor.

✔ This is boiling.

> 5. boiling is when liquid water is heated to a high temperature and quickly turns into water vapor.

✔️ Correct.

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Now back to #1:
> 1. _______ is when liquid water turns into ice.

We have no word in the box that means "liquid to ice."

But "melting" is the reverse.

Wait — could it be "heating"? No — heating makes it warmer, not colder.

Maybe the worksheet has a typo?

But let’s think: Is there any way to interpret it?

Perhaps the intended answer is "cooling", but it's not in the box.

Alternatively, maybe "condensing"? No — that’s vapor → liquid.

Wait — unless they meant "freezing", but it’s not in the box.

So this is problematic.

But here’s a possibility: Maybe the order is off, and #1 is supposed to be "freezing", but since it's not in the box, perhaps the correct answer is not available.

But let’s look at the box:
Words: melting, heating, boiling, condensing, evaporating

Only melting and boiling are phase changes.

So melting = solid → liquid
boiling = liquid → gas (fast)
evaporating = liquid → gas (slow)
condensing = gas → liquid
heating = adding heat (not a phase change itself)

So for liquid → ice, the correct term is freezing, which is not in the box.

So either:
- There's a mistake in the worksheet, or
- We're expected to use "cooling", but it's not listed.

But perhaps "heating" is a distractor?

Wait — maybe #1 is meant to be "freezing", but it's missing.

Alternatively, maybe the question is asking for the opposite?

Wait — let’s check the order again.

But based on logic:

> 1. [??] is when liquid water turns into ice.

This is freezing, not in the box.

But "melting" is the reverse.

So unless the worksheet is flawed, we cannot answer #1 with a word from the box.

But perhaps the intended answer is "condensing"? No.

Wait — maybe the word "cooling" is implied? But it's not in the box.

Alternatively, maybe "heating" is used incorrectly?

No.

Wait — perhaps the first sentence is mislabeled?

Let’s assume the worksheet has a typo, and #1 is supposed to be about melting, but it says "liquid water turns into ice", which is wrong.

Alternatively, maybe the answer is "freezing", but it's not in the box.

So this is a problem.

But let’s move on to Part 2.

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Part 2: Fill in the blank lines with a temperature from the box.

Temperatures: 0°, 32°, 100°, 212°

(Units: Fahrenheit or Celsius — we’ll need to match.)

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6. Liquid water turns into water vapor at _______ Fahrenheit or _______ Celsius.

✔ Water boils at:
- 212°F
- 100°C

So:
> 6. Liquid water turns into water vapor at 212 Fahrenheit or 100 Celsius.

✔️ Correct.

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7. Liquid water turns into a solid at _______ Fahrenheit or _______ Celsius.

✔ Water freezes at:
- 32°F
- 0°C

So:
> 7. Liquid water turns into a solid at 32 Fahrenheit or 0 Celsius.

✔️ Correct.

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Part 3: Answer the question below.

8. Explain how melting is different from freezing.

✔ Answer:
Melting is when a solid turns into a liquid (e.g., ice turning into water), and it happens when heat is added. Freezing is when a liquid turns into a solid (e.g., water turning into ice), and it happens when heat is removed.

So:
- Melting: solid → liquid (requires heat)
- Freezing: liquid → solid (releases heat)

They are opposite processes.

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Now Back to Question 1 — What to do?

Since the only possible answer is "freezing", but it's not in the box, and the box includes "melting", which is the reverse, perhaps the question is misprinted.

But let’s consider: Could "heating" be used? No — heating doesn’t turn water into ice.

Unless it’s a trick.

Wait — maybe the word "cooling" is implied, but it's not in the box.

Alternatively, perhaps the intended answer is "condensing"? No — condensing is vapor → liquid.

Wait — unless they mean "water vapor turns into ice"? But no — it says liquid water turns into ice.

So the only logical conclusion is that "freezing" is the correct term, but it's not in the box.

Therefore, this question likely contains an error.

But let’s suppose the worksheet meant to include "freezing" in the box, or the question was meant to be:

> 1. _______ is when ice turns into liquid water.

Then the answer would be melting.

But as written, it’s incorrect.

Alternatively, maybe the word "heating" is meant to be used? But no — heating does not cause water to freeze.

So I think Question 1 is flawed.

But perhaps in some contexts, "cooling" is considered, but again, not in the box.

So the best we can do is:

> 1. [No correct word in the box] — but if forced, perhaps "melting" is intended, but it's backward.

Wait — unless the sentence is backwards?

Let’s read:
> 1. _______ is when liquid water turns into ice.

That’s freezing.

But "melting" is when ice turns into liquid water, which is Question 2.

So clearly, Question 1 is incorrect.

But let’s check if "condensing" could be used? No — condensing is vapor → liquid.

No.

So only possibility is that the worksheet has a typo.

But since the rest of the worksheet is correct, and Question 1 is likely meant to be "freezing", but it's not in the box, perhaps it's a mistake.

Alternatively, maybe "heating" is used incorrectly?

No.

So final decision:

✔ Correct Answers:

#### Part 1:
1. [No correct word in box — likely error]
*(Should be "freezing", but not in box)*

2. melting
3. condensing
4. evaporating
5. boiling

#### Part 2:
6. 212 Fahrenheit or 100 Celsius
7. 32 Fahrenheit or 0 Celsius

#### Part 3:
8. Melting is when a solid (like ice) turns into a liquid (water) by absorbing heat. Freezing is when a liquid (water) turns into a solid (ice) by losing heat. They are opposite processes.

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Final Note:

There appears to be an error in Question 1 — the correct term "freezing" is not in the vocabulary box. It should probably be included, or the question should be revised to match the available words.

If you must choose from the box, then no word fits.

But if the worksheet allows it, you might write:
> 1. freezing — even though it's not in the box.

Or, if the box had "cooling", that might work.

But as it stands, Question 1 cannot be answered correctly using the provided vocabulary.

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✔ Recommended Answers (with correction):

1. freezing *(Note: Not in box — likely error)*
2. melting
3. condensing
4. evaporating
5. boiling
6. 212, 100
7. 32, 0
8. Melting is when a solid becomes a liquid due to added heat; freezing is when a liquid becomes a solid due to lost heat. They are opposite processes.

Let me know if you'd like a corrected version of the worksheet!