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October 11 th 2011 PILF Week (-) Hump Day. AIM# 19: Liquid Density/Density Review Do Now: What is the density of an object with a mass of 10 grams and a volume of 2 mL? Homework: 1) Quiz Friday on Density/Volume/Measuring.
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October 11th 2011PILF Week (-) Hump Day • AIM# 19: • Liquid Density/Density Review Do Now: What is the density of an object with a mass of 10 grams and a volume of 2 mL? Homework:1) Quiz Friday on Density/Volume/Measuring
Question? If the candy bar has a density of 4 g/cubic centermeters….. • What would happen if I took the candy bar and split it in half? • Would I have the same density? • Why or why not?
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.
Viscosity • Viscosity is a measure of a fluid's resistance to flow • Honey is more viscous than water
Liquid Layers • Check out this picture . Which layer has the highest density? • Which layer has the lowest density? • Imagine that the liquids have the following densities: • 10g/cm3. 3g/cm3. • 6g/cm3. 5g/cm3. • Which number would go with which layer?
Liquid Layers – Try with your neighbor • 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: • 15g/cm3 10g/cm3 • 3g/cm3 9g/cm3 • 7g/cm3 12g/cm3 • Match the colors to the correct densities. 3g/cm3 7g/cm3 9g/cm3 10g/cm3 12g/cm3 15g/cm3
Review • What is the formula for density? • What happens if you pour together liquids that have different densities? • Will the liquid on the top have the highest or lowest density? • Will the liquid on the bottom have the highest or lowest density?
In Your Journals…. • 1) Write Title: Density and the Date 10/11/11 • 2) Explain in your words or drawings density. Include the difference between mass and weight and volume. • 3) Explain what happens when you cut an object in half. What happens to the density? • 4) Explain liquid density. ( What happens when different liquids are mixed together?) • Explain what happens when an object in water has a density more than or less than 1 g/cubic centimeter • Use complete sentences! Colored pencils are up front. You may use any of the labs we have discussed or done.