Physical and Chemical PropertiesPhysical and Chemical PropertiesChapter 9Chapter 9

• At the end of this chapter, you will understand how to use physical and chemical properties to sort and identify substances.

• Are you up to the challenge?Are you up to the challenge? Here’s what you’ll be expected to do to earn a great grade for this chapter.

Matter of Fact ProjectMatter of Fact Project Individual presentation and performanceIndividual presentation and performance

Demonstrate the physical or chemical change of matter from one state of matter to another. Pick an element, compound or mixture and complete an investigation to demonstrate your learning to your peers.You will need to include the following items:You will need to include the following items:Explain the physical properties of the item you have chosenExplain the process that occurs when it changes from one state of matter to another state.Thought Jot – 2 learnings from Chapter 9 Section 1 1 learning from Chapter 9 Section 3Visual Aid demonstrating your project

You will need to pick a format that you will use to present your information.Power pointTri-foldArtifactsPoster

You will be presenting your information to a small group.You will be presenting your information to a small group.

Physical Properties 9.1Physical Properties 9.1~Let’s get started~~Let’s get started~

• When you were born the world around you was new and exciting. How did you learn about this new area in which you lived? Write a brief sentence on how you learned in your science spiral.

• How did you classify say milk and orange juice? (AAC)

• This classification helps you to better understand what types of matter are and how they were formed.

Common Physical PropertiesCommon Physical Properties

• Did you have a favorite pet, toy, or blanket when you were a child? Take a moment and describe it with as much detail as you can. Do this in your journal. (TNT)

• You just used physical properties to describe your childhood friend.

• PHYSICAL PROPERTIES: a characteristic of PHYSICAL PROPERTIES: a characteristic of matter that can be observed by the senses. Ex: matter that can be observed by the senses. Ex: size, shape, color, texture, taste, and formsize, shape, color, texture, taste, and form..

What physical properties could you use to describe this….

List 5 in your science spiral (AAC)

TextureTexture

• One method scientists use to collect data on a piece of matter is by describing its texture.

• Did you use a description of texture to describe Beaker on the previous slide? If so you rock!

• Texture is how rough or smooth something Texture is how rough or smooth something is.is.

Why does Ice float in water?Why does Ice float in water?

• Why does oil rise above vinegar?

• Why would Saturn float in our ocean?

• Why does Pumice float and granite sink when placed in water?

• Why do you float in the Dead Sea?• Why does a pound of lead weigh more

than a pound of feathers? Does it? (TNT)

Hummmmm….Hummmmm….

• Take a look at the two boxes below. Each box has the same volume. (exp/50 gal. drum)

• If each ball has the same mass, which box would weigh more? Why?

Answer this in your science journalAnswer this in your science journal

Were you right?

• The box that has more balls has more mass per unit of volume. This property of matter is called density. The density of a material helps to distinguish it from other materials. Since mass is usually expressed in grams and volume in cubic centimeters, density is expressed in grams/cubic centimeter.

Density, Density, DensityDensity, Density, Density

• Density relates the mass of something to how Density relates the mass of something to how much space it takes up, which is its volume.much space it takes up, which is its volume.

• Ice floats due to its density is less than water or pop.

• Oil rises above vinegar due to its density is less than that of the vinegars.

• Saturn is less dense than our salty ocean.• One pound of feathers equals the density of one

pound of lead.• This is another way scientists describe and

categorize matter. By its density. Dense huh!!

How do you find the density of an How do you find the density of an objectobject

• We can calculate density using the formula: Density= Mass / Density= Mass / (divided by)(divided by) Volume Volume

• If the mass of an object is 10 grams and its volume is 5 cubic centimeters what is its density?

• 10g / 5cu. cm = 2g/cu.cm

The densities for some common The densities for some common substances are:substances are:

• Substance Density (gram / cubic centimeter)• Air0.0013• Wood(oak)0.85• Water1.00• Ice0.93• Aluminum2.7• Lead11.3• Gold19.3• Ethanol0.94• Methanol0.79

• Which is the lightest and which is the heaviest?Which is the lightest and which is the heaviest?• Any connections to previous knowledge? Any connections to previous knowledge? (AAC)(AAC)

Which is more dense the plane or Which is more dense the plane or the wall? the wall? Explain after the video.Explain after the video.

Click on video to startClick on video to start