Question

What does density tell us?

Answer 1

The amount of mass per unit volume.

Explanation:

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 `rho=m/V`.
= > where `rho` is the density in `(kg)/L` OR `(kg)/m^3` or any similar units of
measurements (`g/(mL), etc.`), `m` is the mass of the object in either
`g` or `kg`, and `V` is the volume in either `L` or `mL` OR `m^3` or `cm^3`.

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.

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For example, air has a density of approximately `1.225 (kg)/m^3`.

Helium gas has a very small density compared to air, approximately `0.18 (kg)/m^3`. Because its density is so low, it floats higher than air.

Sulfur hexafluoride has an incredibly high density, approximately `6.17 (kg)/m^3`. This high density results in it "sinking".

Hope this helps :)