#5 Density

Front

What is density?

Back

Density is the mass of an object divided by its volume. It tells us how much matter is packed into a certain space.

Front

Which liquid is the least dense?

Back

Oil is the least dense liquid compared to water, syrup, and a plastic bottle.

Front

What happens to objects that are less dense than water?

Back

Objects that are less dense than water float.

Front

Why do ice cubes float in water?

Back

Ice cubes float because they are less dense than water.

Front

What is the relationship between temperature and density in liquids?

Back

As temperature increases, the density of most liquids decreases.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warm air rises and cool air sinks.

Front

What is an example of a dense material?

Back

Lead is an example of a dense material because it has a high mass for its volume.

Front

How does hot air behave compared to cold air?

Back

Hot air is less dense than cold air, so it rises.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume.

Front

What happens to the density of a gas when it is compressed?

Back

The density of a gas increases when it is compressed because the same mass occupies a smaller volume.