Students explore how heating and cooling drive state changes. Part A has nine fill-in-the-blank problems about particle movement in liquids, butter melting, and water freezing. Part B is a matching activity pairing evaporation, freezing, condensation, and the gas state to their correct definitions.
Connecting particle behavior to observable state changes gives students a mental model for why heating or cooling causes matter to transform.
Style:
States of Matter
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Particles in a liquid can slide and flow past each other.
2. When you heat butter, it melts from a solid to a liquid.
3. Putting water in a freezer causes it to freeze.
4. Steam rising from a pot is water in the gas state.
5. A solid has a definite shape because its particles are fixed.
6. When a puddle dries up, the water has evaporated.
7. Dew on grass in the morning forms through condensation.
8. Matter is anything that has mass and takes up space.
9. An ice cube placed in the sun will melt into liquid water.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Evaporation
→ Liquid changes to gas
Has no definite shape or volume
Freezing
→ Liquid changes to solid
Liquid changes to gas
Condensation
→ Gas changes to liquid
Gas changes to liquid
A gas
→ Has no definite shape or volume
Liquid changes to solid
States of Matter
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) Particles in a liquid can slide and flow past each other.
2) When you heat butter, it melts from a solid to a liquid.
3) Putting water in a freezer causes it to freeze.
4) Steam rising from a pot is water in the gas state.
5) A solid has a definite shape because its particles are fixed.
6) When a puddle dries up, the water has evaporated.
7) Dew on grass in the morning forms through condensation.
8) Matter is anything that has mass and takes up space.
9) An ice cube placed in the sun will melt into liquid water.
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each item to its correct answer.
Evaporation
→ Liquid changes to gas
Has no definite shape or volume
Freezing
→ Liquid changes to solid
Liquid changes to gas
Condensation
→ Gas changes to liquid
Gas changes to liquid
A gas
→ Has no definite shape or volume
Liquid changes to solid
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10 Questions
10-15 minutes
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