Calculating and Calculating and Finding DensityFinding Density

By: Mr. CunninghamBy: Mr. Cunningham

In our Lab today• You will be finding density of

different types of objects.• We must remember Density is

equal to mass divided by volume• D = m/v

Mass• Remember how we find mass?• We use a triple beam balance to

find the mass of our objects.• We will need to find the mass of

an empty vial in order to complete our lab first.

Volume• How doe we find volume? • We use the instrument called a

graduated cylinder.• We will use the method of water

displacement that we did on Tuesday.

Water Displacement• This is where you add water to the

graduated cylinder, to about 10 ml. Called Initial

• Then you place the object in the cylinder and measure that volume. Second measurement

Water Displacement• We Then subtract the original

volume from the second measurement

• 2nd – original = volume of the object.

Density• Now that we have found mass and

volume we can divide and find our density.