Relative Density

Front

What is relative density?

Back

Relative density is a measure of how dense an object is compared to the density of a reference substance, usually water.

Front

If an object is denser than water, what will it do in water?

Back

It will sink.

Front

If an object is less dense than water, what will it do in water?

Back

It will float.

Front

Why do ice cubes float in water?

Back

Ice cubes float because they are less dense than water.

Front

What does it mean if a liquid is more dense than another liquid?

Back

It means that the liquid has more mass per unit volume compared to the other liquid.

Front

What happens to the density of a substance when it is heated?

Back

Generally, the density decreases because the substance expands.

Front

What happens to the density of a substance when it is cooled?

Back

Generally, the density increases because the substance contracts.

Front

How can you determine the order of density among different liquids?

Back

You can determine the order by observing which liquids float on top of others.

Front

What is an example of a substance that is less dense than water?

Back

Oil is an example of a substance that is less dense than water.

Front

What is an example of a substance that is denser than water?

Back

A metal screw is an example of a substance that is denser than water.