1 / 13

Density

Density. CHMS 6 th Science 2011-2012. Density and Layers Session #5 September 8, 2011. Objective: I will demonstrate that the density of an object determines whether it will float or sink in another substance through completing a hands on activity.

sherri
Download Presentation

Density

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Density CHMS 6th Science 2011-2012

  2. Density and Layers Session #5 September 8, 2011 Objective: I will demonstrate that the density of an object determines whether it will float or sink in another substance through completing a hands on activity. Warm Up: In one paragraph, explain how the terms matter, atoms, elements, and the periodic table are related.

  3. What is density? To determine the density of an object you must know the mass and volume of the object. Mass and Volume Density is a comparison of how much matter there is in a certain amount of space. Density

  4. Which one is more dense? Which square is more dense?

  5. Which one is more dense? Now which one is more dense? Why?

  6. How do I determine the density? Density = mass OR mass ÷ volume. volume http://www.youtube.com/watch?feature=player_detailpage&v=9Se2spe9qAI Mass is measured in grams(g) Volume is measured in mL3 or cm3 ALWAYS REMEBER UNITS!

  7. Let’s try a density problem together(Remember the equation d=m/v) 1. Sally has a paper clip. It has a mass of 9g and a volume of 3cm3. What is its density? • http://youtu.be/GVJvoiNhMlU 2. John has an eraser. It has a mass of 3g, and a volume of 1cm3. What is its density?

  8. Work on these problems with your neighbor. 3. Jack has a rock. The rock has a mass of 6g and a volume of 3cm3. What is the density of the rock? http://youtu.be/MSHbLrVlrQc 4. Jill has a gel pen. The gel pen has a mass of 8g and a volume of 2cm3. What is the density of the rock?

  9. Now, try these on your own. 5. Jenny has a watch. It has a mass of 4g and a volume of 2cm3. What is the density of the watch? • http://youtu.be/H_W5tRP4cw0 6. Bobby has a wallet. It has a mass of 15g and a volume of 5cm3. What is the density of the wallet?

  10. 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.

  11. Liquid Layers -Check out this picture from your book. 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?

  12. 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?

  13. Properties of Matter (Brought to you by Discovery Ed.)Apply what you have learned Caroline and her friend Rita are on vacation with Caroline’s family to the Great Salt Lake in Utah. On the first day of their trip, they raced down to the shoreline of the lake and rented a canoe. When they got to the shore line with the canoe, they stopped short in amazement. People were floating in the lake with their heads far out of the water, even though they weren’t making any swimming motions. They put the canoe in the water, got in, and started paddling. Almost immediately, the canoe tipped over. The water was not deep, so they up righted the canoe and set out again. The same thing happened. They never had this problem when they canoed on fresh water lakes. 1. Why does the canoe keep tipping over? 2. What could the girls do to keep the canoe afloat?

More Related