1. Density Where Mass meets Volume

2. What to Know How do I convert units in Density Problems? ConversionExamples 1000 g = 1 kg a.1500 g = ______ kg b. 0.045 kg = ______ g 1000 mg = 1 g a.1740 mg = ______ g b. 0.115 g = ______ mg 1000.mL = 1 L a. 150 mL = ______ L b. 4 L = ______ m 1 cm 3 = 1 mL a.10 cm 3 = ______ mL b. 45 mL = ______ cm 3

3. BRAINSTORM Where have you heard the word density before?

4. The Official Definition The amount of mass in a certain unit of volume of a substance So density is quite simple: to figure out the density all we need is the mass of an object and its volume

5. Density Problems If we want to calculate the density of an object all we need is the mass and the volume Our Formula is: d = Units for Density: solids (g/cm 3 )liquids (g/mL)

6. Density Problems A box has a mass of 170 g and a volume of 20 cm 3. Calculate the density of the box.

7. Density Problems The mass of water in a glass is 355 g and has a volume of 355 mL. Calculate the density of the water.

8. Density Problems The mass of a softball is 12 g and the softball has a density of 2 g/cm 3. What is the volume of the softball?

9. Density Problems An aquarium has the dimensions of 10cm by 20cm by 5cm. The density of water is 1.00 g/mL. Calculate the mass of water in the aquarium.