1. Density is the amount of mass in a specific volume cm 3

2. (1) Formula (2) Substitute (3) Solve A wood block has the mass of 100 g and the volume of 20 ml. What is the blocks’ density. D = 5 g/ml D = m / v D = 100 g / 20 ml

3. Practice Rearranging The Density Equation A Chili Pepper has a density of 50 g/cm 3 and a volume of 10 cm 3. Find the mass of the chili pepper D = M V M = V x D So Chili Mass = 10cm 3 x 50g/cm 3 Mass = 500g

4. Water has a density of 1 g/ml If an object’s Density is more than 1 it will sink If an object’s Density is less than 1 it will float

5. Buoyant Force: An upward force that fluids exert on all matter. Caused by different fluid pressures. Buoyant force opposes gravitational force Gravity Force Buoyant Force

6. Weight vs. Density If an object weighs more than its density it will sink. If an object weighs less than its density it will float.

7. The buoyant force on a submerged object is equal to the weight of the fluid that is displaced (pushed aside) by the object. Notice! Notice!! New Weight