Educational worksheet on the states of matter, illustrating changes between gas, liquid, and solid with interactive fill-in-the-blank questions.

Let’s solve this step by step.

We are learning about how matter changes state — like when water turns to ice, or steam turns back to water. The word bank gives us the words we need:
heat, cool, melts, freezes, condense, vapor

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First, look at the GAS section (top part):

1. “If you ______ water it turns into ______ to form gas.”
→ When you add heat to water, it becomes water vapor (gas). So:
heat and vapor

2. “When water vapor touches a ______ surface it begins to ______”
→ When warm vapor hits something cold, it turns back to liquid — that’s called condensing. So:
cool and condense

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Now the LIQUID section (middle):

3. “If you ______ ice it ______ to form water.”
→ Ice is solid. To turn it to liquid water, you melt it — which needs heat. But the sentence says “if you ___ ice”, so we use “heat” again? Wait — let’s check the word bank. We already used “heat” once, but it can be reused if needed. Actually, looking at the structure:
- First blank: what do you do to ice? You heat it.
- Second blank: what happens? It melts.
→ So: heat, melts

Wait — hold on! Let’s double-check. In the first box under GAS, we used “heat” for turning water to vapor. Now here, heating ice makes it melt — yes, that’s correct.

But wait — maybe they want “warm”? No, “warm” isn’t in the word bank. Only “heat” is available. So yes, “heat” and “melts”.

Actually — let’s re-read carefully:

The sentence is: “If you ______ ice it ______ to form water.”

Yes — you heat ice → it melts → becomes water.

4. “If you ______ water it ______ to form ice.”
→ To turn water to ice, you remove heat — you cool it → it freezes.
→ So: cool, freezes

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Let’s list all answers in order as they appear in the worksheet:

Top left (Gas):
- If you heat water it turns into vapor to form gas.
- When water vapor touches a cool surface it begins to condense

Middle left (Liquid from Solid):
- If you heat ice it melts to form water.
- If you cool water it freezes to form ice.

Wait — did we use “heat” twice? Yes — and that’s okay because it’s in the word bank and applies to both melting ice and boiling water.

Also, note: “vapor” is used only once — in the first box.

Let’s verify each term from the word bank is used appropriately:

Word Bank: heat, cool, melts, freezes, condense, vapor

Used:
- heat → used in two places (ok)
- cool → used in two places (ok)
- melts → used once
- freezes → used once
- condense → used once
- vapor → used once

All words are used correctly.

Final filled-in sentences:

GAS:
- If you heat water it turns into vapor to form gas.
- When water vapor touches a cool surface it begins to condense

LIQUID:
- If you heat ice it melts to form water.
- If you cool water it freezes to form ice.

SOLID: (no blanks — just labeled)

Everything checks out.

Final Answer:
heat, vapor, cool, condense, heat, melts, cool, freezes