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

How do you calculate density?

Back

Density = Mass / Volume.

Front

What unit is density commonly measured in?

Back

Density is commonly measured in grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³).

Front

Which is denser: a rock or a feather?

Back

A rock is denser than a feather because it has more mass in the same volume.

Front

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

Back

When a substance is heated, it usually expands, which can decrease its density.

Front

What is buoyancy?

Back

Buoyancy is the ability of an object to float in a fluid. It is related to the density of the object and the fluid.

Front

What is convection?

Back

Convection is the transfer of heat in a fluid where hot fluid rises and cold fluid sinks, creating a cycle.

Front

Which liquid is denser: oil or water?

Back

Water is denser than oil, which is why oil floats on water.

Front

What is the relationship between density and floating?

Back

An object will float if its density is less than the density of the fluid it is in.

Front

What is the least dense of the following: oil, water, syrup?

Back

Oil is the least dense of the three.