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Matter and Energy Exploration

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States of Matter and Particle Theory

Particles in different states of matter

🔬 Part 1: Understanding Particles

1. Look at the particle diagrams below. Circle the correct state of matter for each:

Diagram A: Particles tightly packed together

Solid   
Liquid   
Gas

Diagram B: Particles close but can move around each other

Solid   
Liquid   
Gas

Diagram C: Particles spread far apart and moving quickly

Solid   
Liquid   
Gas

2. Which state of matter has the HIGHEST energy?

Solid

Liquid

Gas

3. Which state of matter has the LOWEST energy?

Solid

Liquid

Gas

📝 Part 2: Particle Movement

4. Complete these sentences about particle movement:

In a solid, particles _________________ because they have _______ energy.

In a liquid, particles _________________ because they have _______ energy than solids.

In a gas, particles _________________ because they have the _______ energy.

5. Draw arrows to show how fast particles move in each state:

Solid: Draw short arrows

Liquid: Draw medium arrows

Gas: Draw long arrows

6. Explain why ice feels cold to touch using particle theory:

Ice feels cold because the particles _________________________________

🌡️ Part 3: Temperature and Energy

7. What happens to particles when you heat them up?

They move slower

They move faster

They stop moving

8. Put these temperatures in order from lowest particle energy to highest:

Water at 100°C, Ice at 0°C, Steam at 120°C

Lowest energy: _____________ → _____________ → _____________ :Highest energy

9. Think about a hot cup of tea cooling down. What happens to the particle movement as it cools?

As the tea cools down, the particles _________________________________

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