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What’s the MATTER Classify Matter. Matter, Classify Matter At the conclusion of our time together, you should be able to: 1. Classify a mixture of matter.

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Presentation on theme: "What’s the MATTER Classify Matter. Matter, Classify Matter At the conclusion of our time together, you should be able to: 1. Classify a mixture of matter."— Presentation transcript:

1 What’s the MATTER Classify Matter

2 Matter, Classify Matter At the conclusion of our time together, you should be able to: 1. Classify a mixture of matter based on their physical and chemical properties 2. Characterize various types of matter

3 Bill Gates' Rules Here is a list of 11 things that many high school and college graduates did not learn in school. In his book, Bill Gates talks about how feel-good, politically- correct teachings created a full generation of kids with no concept of reality and how this concept has set them up for failure in the real world. RULE 9 Life is not divided into semesters. You don't get summers off and very few employers are interested in helping you find yourself. Do that on your own time.

4 Types of Matter  Pure Substance- Matter with a fixed composition It has distinct properties Examples =elements compounds

5 Types of Matter  Mixtures- Most matter is a mixture The composition is not fixed (changes from sample to sample) Two Types – Homogeneous Heterogeneous

6 Homogeneous Mixtures  Composition is uniform throughout Solution-  Particle size = 0.01 – 1 nm  Doesn’t settle out upon standing  Can’t be separated by filtering  Doesn’t scatter light  Example = salt water

7 Colloid-  Particle size = 1 – 1000 nm  Doesn’t settle out upon standing  Can’t be separated by filtering  Scatters light (Tyndall Effect)  Examples = milk, gelatin, smoke Homogeneous Mixtures

8 Heterogeneous Mixtures - Suspension  The sample varies in composition, properties and appearance  No uniformity If a suspension: Particle size is greater than 1000 nm Particles settle out upon standing Can be separated by filtration Might scatter light Examples = soil, trail mix, pond water

9 Don’t Let This Stuff Bite You!!!!

10 Let’s Look at Some Examples:  Mixtures are variable combinations of 2 or more pure substances. Heterogeneous – visibly separate phases Homogeneous – Same throughout

11 Pure substance vs. Mixture Only ONE element has 2 or more or compound. elements/ (distilled water) compounds. Pure substance vs. Mixture Only ONE element has 2 or more or compound. elements/ (distilled water) compounds.

12 Distilled Water is a compound. an element. a solution. a mixture.

13 Air is a mixture of several gases. Name Formula amount Nitrogen N 2 78 % Oxygen O 2 21 % Argon Ar 1 % Carbon CO % Dioxide

14 Air is a mixture of several gases Name Formula Amount Neon Ne % Methane CH % Helium He % Krypton Kr % Hydrogen H % Xenon Xe %

15 Atoms are NOT the same as molecules. Air and oxygen are NOT the same. Helium and hot air are NOT the same. Atoms are NOT the same as molecules. Air and oxygen are NOT the same. Helium and hot air are NOT the same.

16 Helium and hot air are NOT the same.

17 What’s the MATTER Classify Matter Let’s Put it All Together in a Chart!!

18 Is the composition uniform? NoNoYes MATTER Can it be physically separated? Homo- geneous Mixture (solution) Hetero- geneous Mixture Compound MIXTURE PURE SUBSTANCE Yes NoNo Can it be chemically decomposed? NoNo Yes Suspensions Element Colloids

19 I don’t feel so stupid now…

20 Matter, Classify Matter Let’s see if you can: 1. Classify a mixture of matter based on their physical and chemical properties 2. Characterize various types of matter

21 Putting sand and salt together makes a compound. an element. a mixture. a solution.

22 Pure Water is a compound. an element. a solution. a mixture. Pure Water is a compound. an element. a solution. a mixture.

23 Tap Water is a compound. an element. a solution. a mixture. Tap Water is a compound. an element. a solution. a mixture.

24 Familiar Saying A beholden vessel never exceeds 212 degrees Fahrenheit. A watched pot never boils!

25 An atom is to an element, as a molecule is to a metal. nonmetal. metalloid. compound.

26 If different kinds of atoms are represented by different colored dots, which picture represents a sample of a compound?

27 If different kinds of atoms are represented by different colored dots, which picture below represents a mixture?

28 Which of the following illustrations represents a pure substance?

29 To: Santa Re: Where Are My Gifts?! Actual s to Santa.com  I’m sorry, but I don’t have a chimney…I’ll leave the cat flap unlocked for you, but please watch out for the litter box!  Jon, 4

30 Salt (NaCl) is a common substance. Salt is which of these? atom element compound mixture Salt (NaCl) is a common substance. Salt is which of these? atom element compound mixture

31 A chocolate chip cookie is an example of a __________, because ______________. a. compound, the ingredients are chemically bonded. b. compound, it is the same throughout. c. mixture, you can separate out the chips. d. mixture, you cannot distinguish between the ingredients. A chocolate chip cookie is an example of a __________, because ______________. a. compound, the ingredients are chemically bonded. b. compound, it is the same throughout. c. mixture, you can separate out the chips. d. mixture, you cannot distinguish between the ingredients.

32 Which formulas represent compounds? O 2, H 2 O 2 CO 2, H 2 O H 2, CO 2 H 2, O 2 Which formulas represent compounds? O 2, H 2 O 2 CO 2, H 2 O H 2, CO 2 H 2, O 2

33 Which of the following is a compound? oxygen water nitrogen air

34 I don’t feel so stupid now…


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