Waid Academy Science

Particles: Solids, Liquids & Gases

Which of the following is NOT one of the three states of matter?

1. Solid2. Liquid3. Gas4. Air

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Solid Liquid Gas Air

Solid

Liquid

Gas 10

Solids keep a fixed shape and volume

1. True2. False

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10

Identify the correct fact about liquids

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0% 1. Liquids keep the same shape2. Liquids keep their volume3. Liquids are clear4. You can see through a liquid

15

When liquid water in a kettle boils to form steam this is

known as…

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Melting Freezing Evaporating Condensing

1. Melting2. Freezing3. Evaporating4. Condensing

10

25 cm3 of dried peas and 25 cm3 of sand are added together.

What might the final volume be?

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1. Exactly 50 cm3

2. Less than 50 cm3

3. More than 50 cm3

4. Exactly 25 cm3

15

What does diffusion mean?

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A substance taking up more room when it is heated

A substance taking up less room when it is cooled

Movement of one substance through another.

A liquid changing into a solid

1. A substance taking up more room when it is heated

2. A substance taking up less room when it is cooled

3. Movement of one substance through another.

4. A liquid changing into a solid

Why is diffusion quicker in gases than in liquids?

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0% 1. Gas particles have big spaces between them & move faster

2. Gas particles have small spaces between them & move faster

3. Gas particles have big spaces between them & move slower

4. Gas particles have small spaces between them and move slower

Expansion in a solid, liquid or gas happens when the

substance is…

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Pulled Pushed Cooled Heated

1. Pulled2. Pushed3. Cooled4. Heated

10

Why do railway lines have small gaps between the rails?

1. So that they can contract in the heat

2. So that they can expand in the heat

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10

Why are telephone lines put up slack on a hot summer day?

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They would expand & snap in hot weather They would contract & snap in hot weather They would contract & snap in cold weather They would expand & snap in cold weather

1. They would expand & snap in hot weather

2. They would contract & snap in hot weather

3. They would contract & snap in cold weather

4. They would expand & snap in cold weather 15