1. DENSITY

2. Density
This quantity uses mass and volume, and also explains why some things float in water while others sink
Density = mass/volume

3. The phase of matter can affect density
Lowest density
Gas
Liquid
Medium density*
High density*
Solid
* Except water

4. Water is less dense as a solid and most dense as a liquid @ 4o C

5. Styrofoam Lead Something that has a very low density would be
Something with a very high density would be
Lead

6. Is the unknown object more or less dense than the wood?
than the rock? than the water?
wood
Unknown
object
Rock
Density of liquid water is 1 gram/milliliter

7. Density Formulas D = M/V M = D x V V = M/D
Remember: If you cut an object in half, its mass gets smaller AND its volume gets smaller, but
ITS DENSITY STAYS THE SAME!!!!