1. V.Density

2. A. What is density?
Density is how much matter (mass) there is in a certain amount of space (volume)

3. Which one is more dense? Demonstration: People in a square
How about this: Which square is more dense?

4. Which one is more dense?
Now which one is more dense?

5. A. What is Density Cont. Need 2 measurements to calculate density Mass
Volume

6. ÷ × A. What is density cont. M D V DENSITY OF WATER = 1.00 g/mLM ÷
ALWAYS REMEMBER UNITS! × D V
DENSITY OF WATER = 1.00 g/mL

7. Let’s try a density problem together
Frank’s paper clip has a mass of 9 g and a volume of 3 mL. What is its density?
Density = Mass  Volume
Density = 9 g  3 mL = 3 g/mL M ÷ × D V

8. Let’s try a density problem together
Frank’s eraser has a density of 6.0 g/mL and a volume of 2.0 mL. What is its mass?
Mass = Density × Volume
Mass = 6.0 g/mL × 2.0 mL = 12g M ÷ × D V

9. Let’s try a density problem together
Frank’s shot-put has a mass of 500 g and a density of 100 g/mL. What is its volume?
Volume = Mass  Density
Volume = 500 g  100 g/mL
= 5 mL M ÷ × D V