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The particle model

5th grade (Year 6 in England) · 16 questions · Common Core: NGSS.5-PS1-1, NGSS.MS-PS1-4 · England: KS3 Chemistry: The particulate nature of matter, KS3 Physics: Matter, KS4 Combined Science: Particle model of matter

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Score/ 16

1
Question 1
Why does the smell of perfume spread across a room?
- A. The perfume pushes the air away
- B. Perfume particles diffuse, moving randomly among the air particles
- C. Air particles stand still
- D. Perfume particles are attracted to noses
2
Question 2
The particle model: which statement is NOT true?
- A. Particles in a solid do not move at all.
- B. Particles in a solid still vibrate.
- C. There is empty space between gas particles.
- D. Particles in a gas are much further apart than in a liquid.
3
Question 3
Which state is described: particles close together in a random arrangement?
- A. solid
- B. liquid
- C. gas
4
Question 4
Why does the smell of perfume spread across a room?
- A. Air particles stand still
- B. Perfume particles diffuse, moving randomly among the air particles
- C. Perfume particles are attracted to noses
- D. The perfume pushes the air away
5
Question 5
The particle model: which statement is NOT true?
- A. There is empty space between gas particles.
- B. Particles in a solid still vibrate.
- C. Particles in a gas are much further apart than in a liquid.
- D. Particles expand when they are heated.
6
Question 6
Which state is described: particles packed in a regular pattern?
- A. solid
- B. liquid
- C. gas
7
Question 7
What causes gas pressure inside a balloon?
- A. Gas particles colliding with the inside of the balloon
- B. Particles staying still
- C. The balloon's colour
- D. The rubber pulling inwards
8
Question 8
The particle model: which statement is NOT true?
- A. There is empty space between gas particles.
- B. The particles in ice are a different substance from the particles in water.
- C. All matter is made of tiny particles.
- D. Particles in a solid still vibrate.
9
Question 9
Which state is described: particles packed in a regular pattern?
- A. solid
- B. liquid
- C. gas
10
Question 10
What happens to particles when a substance is heated?
- A. They get bigger
- B. They move faster
- C. They melt
- D. They stop moving
11
Question 11
The particle model: which statement is NOT true?
- A. The particles in ice are a different substance from the particles in water.
- B. Particles in a solid still vibrate.
- C. All matter is made of tiny particles.
- D. There is empty space between gas particles.
12
Question 12
Which state is described: particles in fixed positions that only vibrate?
- A. solid
- B. liquid
- C. gas
13
Question 13
What happens to particles when a substance is heated?
- A. They melt
- B. They move faster
- C. They get bigger
- D. They stop moving
14
Question 14
The particle model: which statement is NOT true?
- A. All matter is made of tiny particles.
- B. There is empty space between gas particles.
- C. Particles in a solid still vibrate.
- D. Particles expand when they are heated.
15
Question 15
Which state is described: particles with lots of empty space between them?
- A. solid
- B. liquid
- C. gas
16
Question 16
What happens to particles when a substance is heated?
- A. They get bigger
- B. They stop moving
- C. They melt
- D. They move faster

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Answer key: The particle model

1. B. Perfume particles diffuse, moving randomly among the air particles
2. A. Particles in a solid do not move at all.
3. B. liquid
4. B. Perfume particles diffuse, moving randomly among the air particles
5. D. Particles expand when they are heated.
6. A. solid
7. A. Gas particles colliding with the inside of the balloon
8. B. The particles in ice are a different substance from the particles in water.
9. A. solid
10. B. They move faster
11. A. The particles in ice are a different substance from the particles in water.
12. A. solid
13. B. They move faster
14. D. Particles expand when they are heated.
15. C. gas
16. D. They move faster