1. Density Review and Classification of Matter

2. Density Density = Mass Volume Unit: g/ml

3. A student is taking measurements on a rock that he found. Its mass was 15g, and he volume was 3ml. What was the rock’s density?

4. What is the volume of an object if the density is 10g/ml, and it’s mass is 30g?

5. What is the mass of an object if the volume is 10ml, and the density is 4g/ml?

6. Matter Solid Plasma Gas Liquid Definite Volume Definite Shape Not compressible Definite Volume Indefinite Shape Not compressible Compressible Indefinite Shape Indefinite Volume Extremely High Temperatures only Bose-Einstein Condensate Extremely low temperatures only

7. Matter SubstanceMixture HeterogeneousHomogeneousCompound Element

8. Substances Elements- simplest kind of matter Cannot be broken down into simpler All one kind of atom. Compounds are substances that can be broken down by chemical methods When they are broken down, the pieces have completely different properties than the compound. Made of molecules- two or more atoms

9. Mixtures Made up of two substances. Heterogeneous- mixture is not the same from place to place. Chocolate chip cookie, gravel, soil. Homogeneous- same composition throughout. Kool-aid, air. Every part keeps its properties.

10. Solutions Homogeneous mixture Can occur between any state of matter. Solid in liquid- Kool-aid Liquid in liquid- antifreeze Gas in gas- air Solid in solid - brass Liquid in gas- water vapor Like all mixtures, they keep the properties of the components. Can be separated by physical means

11. Substance- ElementSubstance- Compound Heterogeneous MixtureHomogeneous Mixture Chlorine Water Soil Sugar Water Oxygen Carbon Dioxide Rocky Road Ice Cream Alcohol Pure Air Iron

12. Evaporation

13. Filtration

14. Magnetic Attraction

15. Decantation

16. Thin Layer Chromatography (TLC) Chromatogram of 10 essential oils colored with vanillin reagent.

17. Centrifuge