States of matter worksheets - Free Printable

It looks like you've uploaded an image of a worksheet titled "Phases of Matter Math", which is designed to help students understand the changes in states of matter using simple equations and word banks. Since I can't view images directly, I'll interpret the content based on your description and typical structure of such worksheets.

Let’s break down the task and solve it step by step:

---

Worksheet: Phases of Matter Math

#### Instructions:
*Complete each sentence with the words in the word bank.*

---

Problem 1:

```
[ice cube] + [flame] = [water droplet]
```

Question: When a solid changes to a liquid it ____________.

Answer:
A solid changing to a liquid is called melting.

✔ So, the blank should be filled with: melts

> ✔ When a solid changes to a liquid it melts.

---

Problem 2:

```
[water droplet] + [flame] = [steam] → [mug]
```

Question: When a liquid changes to a gas it ____________.

Answer:
A liquid changing to a gas is called evaporation or boiling (depending on conditions). In this context, since heat is applied (flame), it's likely boils or evaporates.

But the most accurate term from the word bank (if available) would be evaporates or boils.

Looking at the word bank below:

> WORD BANK:
> - heat
> - gas
> - liquid
> - solid
> - liquid
> - heat
> - liquid
> - evaporation

Wait — the word bank appears to have duplicates. Let's clean it up:

Word Bank:
- heat
- gas
- liquid
- solid
- evaporation
- melt
- boil
- condensation
- freeze
- vaporize

(Note: Based on common versions of this worksheet, these are likely the intended terms.)

So for Problem 2:
When a liquid changes to a gas, it evaporates or boils.

But the correct scientific term used in phase change is evaporation (at any temperature) or boiling (at boiling point).

However, in many educational contexts, especially for younger students, they use "boils" when heat is involved.

But the best general answer is: evaporates.

✔ So:
When a liquid changes to a gas it evaporates.

---

Problem 3:

> Adding heat gives things (increases) energy.

This is a statement, not a question, but it's a key concept.

✔ True. Adding heat increases the kinetic energy of particles, causing them to move faster and potentially change state.

---

Final Answers:

1. When a solid changes to a liquid it melts.
2. When a liquid changes to a gas it evaporates.
3. Adding heat gives things (increases) energy. → True

---

✔ Summary:

| Question | Answer |
|--------|--------|
| Solid → Liquid | Melts |
| Liquid → Gas | Evaporates |
| Adding heat | Increases energy |

---

If your worksheet includes more questions (like freezing, condensing, etc.), feel free to describe them, and I can help further!

Let me know if you'd like a printable version or explanation for younger learners!