What does density tell us?
The amount of mass per unit volume.
Density is a derived unit from two other units: mass and volume.
Density is by definition, the amount of mass per unit volume.
Identified with the formula
= > where
The mass and volume units determine the unit of measurement your density is in.
Density tells scientists how "heavy" a substance is. If a substance has a higher density, it is heavier. Likewise a lighter density means it is much lighter.
For example, air has a density of approximately
Helium gas has a very small density compared to air, approximately
Sulfur hexafluoride has an incredibly high density, approximately
Hope this helps :)