Download presentation

Presentation is loading. Please wait.

Published bySavannah Cannon Modified over 4 years ago

1
Matter…matters

2
Density Density is a property of matter One way to identify a substance is by its density. Gold or Fools Gold? (pyrite)

3
How to find DENSITY Step 1: Measure the mass Step 2: Measure or calculate the volume

4
Finding Volume Shape Formula Rectangular prismv=length * width * height Triangular prismv=1/2 (length * width * height) Cylinderv = pi r 2 h

5
Volume of Irregular Shapes Step 1: Read the graduated cylinder. http://www.morrisonlabs.com/meniscus.htm Step 2: Place the object in the cylinder Step 3: Read the graduated cylinder. Step 4: Calculate the difference of the water displacement to find the volume of the irregular shape.

6
Step 3 Density = mass divided by volume

7
Calculate the density for each item. D = M / V Mass: 15 g Volume: 20 mL Mass: 1000 g Volume: 50 mL Mass: 225 g Volume: 100 mL Mass: 10 g Volume: 200 mL www.middleschoolscience.comwww.middleschoolscience.com 2008 Density =.75Density = 20Density = 2.25 Density = 0.05

8
The king wants to pick out a new crown but only wants one made of 100% pure gold, not gold plated or mixed with other metals. Can you help him find his new gold crown? The volume of each crown is 60 cm 3 Densities of Metals Lead – 11.34 g/cm 3 Gold -19.3 g/cm 3 Silver -10.5 g/cm 3 Platinum - 21.4 g/cm 3 Copper - 8.9g/cm 3 D = M / V A = 680.4 gB = 534 g C = 1,158 gD = 1,284 g L. LaRosa http://www.middleschoolscience.com for T. Trimpe 2008 http://sciencespot.net/

9
D = M / V A = 680.4 g B = 534 g C = 1,158 g D = 1,284 g D = 680.4 / 60 D=11.34 g/cm 3 D = 534 / 60 D=8.9 g/cm 3 D = 1158 / 60 D=19.3 g/cm 3 D = 1284 / 60 D=21.4 g/cm 3 The volume of each crown is 60 cm3

10
The king wants to pick out a new crown but only wants one made of 100% pure gold, not gold plated or mixed with other metals. Can you help him find his new gold crown? The volume of each crown is 60 cm 3 Densities of Metals Lead – 11.34 g/cm 3 Gold -19.3 g/cm 3 Silver -10.5 g/cm 3 Platinum - 21.4 g/cm 3 Copper - 8.9g/cm 3 D = M / V A = 680.4 gB = 534 g C = 1,158 gD = 1,284 g

Similar presentations

OK

Matter Chapter Twelve: The Physical Properties of Matter 12.1 Density 12.2 Buoyancy 12.3 Properties of Materials.

Matter Chapter Twelve: The Physical Properties of Matter 12.1 Density 12.2 Buoyancy 12.3 Properties of Materials.

© 2018 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google