1. Density Measures how much matter (mass) is in a certain amount of space (volume)

2. Calculating Density Density equals mass divided by volume D = m / v g/mL or g/cm3

3. Sample Problem #1 What is the density of a chocolate bar that has a mass of 55.6 g and a volume of 30 cm3 ?

4. Sample #2 What is the mass of a gold brick that has a density of 19.3 g/mL and a volume of 15 mL?

5. Sample #3 What is the volume of silver that has a density of 10.5 g/cm3 and a mass of 25 g

6. Applying Density Why do some objects float in water while others sink?