Density Notes What is density Density is a
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Density Notes
What is density? Density is a comparison of how much matter there is in a certain amount of space.
Which one is more dense ? How about this: Which square is more dense?
Which one is more dense? Now which one is more dense?
What is density? Density = mass volume ALWAYS. REMEMBER Units for density: g or m. L g cm 3 Why are these the units for density? UNITS! 1 ml = 1 cm 3
Let’s try a density problem together 1. Frank has a paper clip. It has a mass of 9 g and a volume of 3 cm 3. What is its density? 2. Frank also has an eraser. It has a mass of 3 g, and a volume of 1 cm 3. What is its density?
Work on these problems with your partner. 1. Jack has a rock. The rock has a density of 2 g/cm 3 and a volume of 3 cm 3. What is the mass of the rock? 2. Jill has a gel pen. The gel pen has a mass of 8 g and a density of 4 g/cm 3. What is the density of the rock?
Liquid Layers If you pour together liquids that don’t mix and have different densities, they will form liquid layers. The liquid with the highest density will be on the bottom. The liquid with the lowest density will be on the top.
Class Liquid Layers Which layer has the highest density? Which layer has the lowest density? Imagine that the liquids have the following densities: 10 g/cm 3. 6 g/cm 3. 3 g/cm 3. 5 g/cm 3. Which number would go with which layer?
Liquid Layers – Try with your partner Which liquid has the highest density? Which liquid has the lowest density? Which liquid has the middle density?
Liquid Layers – Try on your own! Imagine that the liquids on the right have the following densities: 15 g/cm 3 3 g/cm 3 7 g/cm 3 10 g/cm 3 9 g/cm 3 12 g/cm 3 Match the colors to the correct densities. 3 g/cm 3 7 g/cm 3 9 g/cm 3 10 g/cm 3 12 g/cm 3 15 g/cm 3
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