1. Density The make up and structure of all matter!!!

2. Anyone Ever Tell You Your Dense? Well, you all are… Because you all have these two properties You are made up of MATTER…which means you have mass That occupies a certain SPACE…which means you have volume

3. When You Combine Mass and Volume, you get… Density A measure of the amount of matter (mass) that occupies a given amount of space (volume) SPACE Amount of Matter

4. OR How tightly packed the atoms are High Density – Solid (particles are packed together) Low Density – GAS (particles are loosely together)

5. Equation & Units for Density: Equation: Units for Density Units for Density = Grams per cubic centimeter (or milliliter) g/cm 3 (or g/ml) ESRT Page 1

6. What Do All Those Letters Mean?

7. Quick Visual Aid Cover up the letter that you trying to find and the formula magically appears

8. Now you try Your cell phone has a mass of 800 g and a volume of 50 cm 3. Calculate the density. Density = Mass VolumeDensity = Mass Volume Density = 800 grams 50 cm 3Density = 800 grams 50 cm 3 Density = 16 g/cm 3Density = 16 g/cm 3

9. Based on the density of the cell phone, Will it sink or float if you dropped it in a pool? Sink, the density is greater than 1 g/cm 3, the density of water

10. One More Try: The density of a rock is 2.5g/ml. The mass of the rock is 50g. What is the volume of the rock? (Cover up the V, the D and V are on two lines so the top line of mass will be divided by the bottom, volume) Volume = Volume = 50 g 2.5 g/ml Volume = 20.0 ml density Volume = mass density

11. 3.