1. Density

2. What is density?
Density describes the relationship between mass and volume

3. Density Formula
D = mass or m volume V

4. Units for Density Calculations
Mass is measured in grams (g)
Volume is measured in ml or cm3
Density is measured in g/ml or g/cm3

5. Example
Substance
Mass (g)
Volume (cm3)
Density
Steel Paper Clip
.36
.046
Steel Bike Cable
19.8
2.53
7.8 g/cm3
7.8 g/cm3
Why?
The densities are the same, because they are made of the same material. Each object is made of steel, so it does not matter the size or the amount you have, the densities will be the same. Density is a physical intensive property.

6. ** Density describes how tightly atoms or molecules are packed together **
* More dense = more compact
* Less dense = less compact

7. ** The density of water is 1 g/ml **

8. Buoyancy Ability to float
If something is very buoyant, it has a high potential to float

9. Viscosity Resistance to flow
The more viscous something is, the more resistant to flow
Example: Syrup, cold vs hot