3. No Syllabus/Parent letter No Safety Contract No closed toed shoes No pants Retest above 80% today ONLY NO GRADE=Zero!!!

4. Objective/Topic I can classify matter as an element, compound, solution, homogeneous mixture, or a heterogeneous mixture based on it’s chemical and physical properities. Essential Question What questions can I ask myself to distinguish between the different types of matter?

5. Anything that has mass & takes up space

6. Classification of Matter Can it be broken down into smaller”parts?” Is it the same throughout? Is it more than one substance? YES NO Substance Mixture

7. …are either: Elements Compounds or Cu Mg BrAl NaCl Na Cl HH O H2OH2O

8. MatterSubstances ElementsCompounds Mixtures Cu MgBr Al NaCl Na Cl HH O H2OH2O Can it be broken down into smaller”parts?” Is it the same throughout? Is it more than one substance? YES NO YESNO

9. Elements: All atoms are the same (pure) Can’t be broken down into anything else. Other examples: hydrogen & oxygen There’s real gold in here!

10. Compounds: 2 or more elements (atoms) chemically combined to make a new material. Examples NaCl (salt) H 2 O (water) Have different properties than the elements that make it up. Na (sodium) – looks and acts differently by itself. As does Cl which would be poisonous if were to inhale it as a gas! NaCl – or table salt

11. MatterSubstances ElementsCompounds Mixtures Cu MgBr Al NaCl Na Cl HH O H2OH2O Can it be broken down into smaller”parts?” Is it more than one substance? YES NO YESNO

12. Made up of 2 or more substances mixed together, but not chemically combined. Unlike compounds, the “parts” keep their own properties. It’s easy to think of a mixture as a combination pizza.The pepperoni tastes and looks the same on or off the pizza

13. MatterSubstances ElementsCompounds Mixtures Cu MgBr Al NaCl Na Cl HH O H2OH2O Can it be broken down into smaller”parts?” Is it more than one substance? YES NO YESNO Is it the same throughout?

14. MatterSubstances ElementsCompounds Mixtures Homogenous Mixture HeterogeneousMixture Cu MgBr Al NaCl Na Cl HH O H2OH2O Can it be broken down into smaller”parts?” Is it the same throughout? Is it more than one substance? YES NO YESNOYESNO

15. Substances are evenly spread out. (can’t see separate parts) Examples: salt water, kool-aid, gas, coffee with nothing added.

16. Particles will never settle out. Examples: rubbing alcohol & soda Alloys: 2 metals like bronze or brass Solution: One substance dissolved in another: Particles to small to see

17. Substances making up the mixture are easily distinguishable. Examples: pizza, soup, concrete slab, muddy water

18. NOMatterYES Substances Elements Compounds Mixtures Homogenous Mixture HeterogeneousMixture Cu MgBr Al NaCl Na Cl HH O H2OH2O (Solution-can only be HOMOGENEOUS) Can it be broken down into smaller”parts?” Is it the same throughout? Is it more than one substance? YES NO YESNOYESNO Does it settle out?

19. Suspensions: substances making up mixture settle out Can appear homogeneous or heterogeneous Large particles can be seen

20. Colloid: substances making up the mixture don’t settle out (fog). Can appear homogeneous or heterogeneous. Particles too small to see but large enough to scatter light. Will scatter light.

21. Scattering of light by the larger particles in a colloid. Solutions Solutions on the other hand, have particles so small that they don’t scatter the light. Tyndall Effect

22. MatterSubstances ElementsCompounds Mixtures Homogenous Mixture HeterogeneousMixture Suspension Colloid Cu MgBr Al NaCl Na Cl HH O H2OH2O (Solution-can only be HOMOGENEOUS) Can it be broken down into smaller”parts?” Is it the same throughout? Is it more than one substance? YES NO YESNOYESNO YES NO

23. SolutionColloidSuspension Microscopic Particles Small ParticlesMacroscopic Particles No Tyndall Effect Tyndall EffectMay have Tyndall Effect Same throughout See different parts-floaties Does not settle out Settles out No need to shake Shake it BABY!

24. Characteristics of a material that you can observe. Color, Shape, Size, Density, Melting/boiling Point, Magnetism, Taste are examples

25. Changing a physical property of a substance w/out changing the identity. Freezing, Melting, Evaporating, Condensing, Tearing, Breaking, Freezing, Melting, Evaporating, Condensing, Tearing, Breaking, are examples

26. Characteristics of a substance that indicates if it can undergo a chemical change. combustibility, reactivity, neutrality, flammable, toxic are examples

27. Chemically changing one substance into another. Energy is either needed or released. burning, mixing vinegar w/baking soda, & rusting are examples

28. The mass of all substances present before a chemical change EQUAL the mass of all substances present after the change. = CO 2, H 2 O vapor, ashes