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Matter States and Changes
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Matter States and Changes
🧪 Part 1: Understanding Matter
1. What is matter?
Anything that has mass and takes up space
Only things we can see
Only solid objects
Things that are heavy
2. Which of the following are states of matter? (Check all that apply)
Solid
Liquid
Gas
Plasma
3. In which state of matter are particles packed most closely together?
Solid
Liquid
Gas
All are the same
4. Complete the sentence: When heat is added to ice, it _____________ and becomes _____________.
When heat is added to ice, it _____________ and becomes _____________.
🔥 Part 2: Changes of State
5. Match each process with its correct description:
Melting
Freezing
Evaporation
Condensation
Liquid to gas
Gas to liquid
Solid to liquid
Liquid to solid
6. What happens to particles when a substance is heated?
7. Explain why water at 100°C turns into steam:
8. Draw and label the particle arrangement in each state of matter:
Solid:
Liquid:
Gas:
🌡️ Part 3: Real-World Applications
9. Give three examples of matter changing state in everyday life:
10. Predict what would happen if you left an ice cube on your desk for 30 minutes. Explain using particle theory:
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