Transcript Notes on Density - Ms. Toal's Science Class

Notes on Density
By Ms Toal
Density
• You can determine the identity of a
substance by its density
• It had a double unit : g/ml or g/cmº
• Density =
mass
volume
D= M
V
D=
Density of water
• 1 ml of fresh water (4ºC) weighs one gram.
• All other matter is based relative to this
density.
• 1 cm³
=
1 ml =
1g
Float or Sink
• The density of water is 1.0 g/ml
• Anything with a density that is LESS than
1.0 g/ml will FLOAT
• Anything with a density that is MORE than
1.0 g/ml will SINK
• Let’s look at clay…
How much matter (mass) is inside
per unit of volume
Population density