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States of Matter Changes

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States of Matter Changes

Ice melting into water and steam

📚 Part 1: Multiple Choice

1. What happens when ice is heated to 0°C?

It becomes gas

It melts into water

It stays frozen

It disappears

2. When water vapour in the air cools down and turns back into liquid water, this process is called:

Evaporation

Melting

Condensation

Freezing

3. Which of these is an example of sublimation?

Ice cubes melting in a drink

Dry ice changing directly to gas

Water boiling in a kettle

Rain forming from clouds

4. Check all the processes that involve a liquid changing to a gas:

Evaporation

Boiling

Freezing

Condensation

✏️ Part 2: Fill in the Blanks

5. Complete the sentences using the correct terms:

a) When liquid water is cooled to 0°C, it undergoes _____________ and becomes ice.

b) On a hot day, puddles of water slowly disappear through the process of _____________.

c) When you breathe on a cold window, water droplets form because of _____________.

d) Mothballs slowly shrink and disappear through a process called _____________.

6. Explain what happens to the particles (molecules) when ice melts into water:
7. Describe one example of condensation that you can observe in your daily life:

🎨 Part 3: Diagram and Application

8. Draw arrows and label the state changes in the water cycle diagram below:

Draw a simple water cycle showing: Sun → Ocean → Water vapour → Clouds → Rain → Ocean

Label these processes: Evaporation, Condensation, Precipitation

9. A scientist places a beaker of water at -10°C and slowly heats it to 110°C. List the three state changes that occur and the temperatures at which they happen:

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