DENSITY
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13 Terms
Volume
The amount of space something takes up
Formula of Volume
Length x Width x Height
Density
The ratio of an object’s mass to its volume
Unit of Volume
Cm cubed
Unit of Mass
Grams
Unit of Density
Grams per cm cubed
Formula of Volume, Mass, and Density
Why do objects float?
They are less dense than water – their density is lower than water
Why do objects sink?
They are denser than water – their density is higher than water
Water’s Density
1 g/cm cubed
Why do some objects float even if they are denser than water?
Air – Displace
Air
If the object has hollow spaces or air trapped inside, the overall density becomes lower
Displace
If the object displaces enough water to equal its mass, it floats even if the material is heavy
Note 
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