Let's solve the worksheet step by step. The task is to fill in each blank with either
heated or
cooled, based on how water changes between its different states.
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1. Ice changes to water when it is ________.
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Explanation: Ice is solid water. When ice melts, it turns into liquid water. This happens when heat is added (temperature increases).
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Answer:
heated
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2. Water changes to water vapor when it is ________.
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Explanation: Water turns into water vapor (gas) through evaporation or boiling. This requires energy (heat), so it happens when water is heated.
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Answer:
heated
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3. Water vapor changes to water when it is ________.
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Explanation: Water vapor (gas) becomes liquid water through condensation. This occurs when the vapor loses heat and cools down.
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Answer:
cooled
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4. Water changes to ice when it is ________.
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Explanation: Liquid water freezes into ice when it loses heat and the temperature drops below freezing (0°C).
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Answer:
cooled
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✔ Final Answers:
1. Ice changes to water when it is
heated.
2. Water changes to water vapor when it is
heated.
3. Water vapor changes to water when it is
cooled.
4. Water changes to ice when it is
cooled.
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This worksheet teaches the concept of
phase changes in water:
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Heating causes melting (ice → water) and evaporation (water → vapor).
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Cooling causes condensation (vapor → water) and freezing (water → ice).
Let me know if you'd like a printable version or further explanation!
Parent Tip: Review the logic above to help your child master the concept of 3rd grade science matter worksheet.
