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Science with Ms. Gannon
Social Studies Chapter 3
States of Matter
Weather and Water
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density weight mass volume
In class, we have discussed density as being "how much matter (stuff) something has in a given (specific) volume.
We have also used the
formula for calculating density
. This formula can be written several ways but they all mean the same thing:
is equal to
Units used in Density.
in units like
in in units like
One milliliter (1ml) is equal to one cubic centimeter (1cm³). Written another way, 1 ml = 1 cm³.
We write the unit for
grams per milliliter
(g/ml) or g
rams per cubic centimeter
Here's an example of using the above information:
Tanya needs to find the density of a brick.
First, Tanya measures the mass of a brick. She finds that the brick's mass is equal to 32 grams.
Next she wants to know its volume. She measures the brick's length, width and height. She finds that the brick's dimensions are 4 cm x 2 cm x 2 cm. By multiplying the measurements she finds the volume to be 16 cm³.
Tanya then uses the density formula to calculate the brick's density.
2 g / cm³
The density of Tanya's brick is 2 grams per cubic centimeter (2 g/cm³). We can also write this as 2 grams per milliliter (2 g/ml)
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