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

Which liquid is MORE DENSE than water?

Back

Honey is more dense than water.

Front

What does it mean if an object is less dense than water?

Back

It means the object will float in water.

Front

What does it mean if an object is more dense than water?

Back

It means the object will sink in water.

Front

If a boat has a lot of mass but floats, what can we say about its density?

Back

The boat is less dense than water.

Front

What happens to a copper penny in water?

Back

A copper penny sinks in water, meaning it is more dense than water.

Front

What is the relationship between mass and density?

Back

Density is mass divided by volume; an object can have a lot of mass but still be less dense if its volume is large.

Front

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

Back

Oil is less dense than water and will float on top of it.

Front

How can you determine if an object will float or sink?

Back

If the object's density is less than that of water, it will float; if it is more, it will sink.

Front

What does it mean for an object to float?

Back

It means that the object is less dense than the fluid it is in.