The Particle Model page 60-74 yr7 Flashcards Preview

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Flashcards in The Particle Model page 60-74 yr7 Deck (8)
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1
Q

What are all substances made up of?

A

All substances are made up of particles. Different substances contain different particles. For example, a piece contains particles of iron and a glass of water contains thousands and thousands of water particles.

2
Q

What is a solid?

A

A solid is rigid, has a fixed shape and has a fixed volume.

3
Q

What is a liquid?

A

A liquid is not rigid, has no fixed shape and has a fixed volume.

4
Q

What is a gas?

A

A gas is not rigid, has no fixed shape and has no fixed volume.

5
Q

What happens when a liquid freezes

A

It turns into a solid

6
Q

What happens when a solid melts?

A

It turn into liquid.

7
Q

What is diffusion?

A

If someone is cooking in the kitchen it doesn’t take long for the smell to travel around the house to other rooms. This is because of diffusion.

8
Q

When something boils or freezes what happens to the particles?

A

The particles move around and rearrange into a different material.