2. Unit 3 Dr. B.’s ChemAdventure Matter 1 Unit 3: Matter 1.What is it? 2. Mixtures: types 3. Mixtures: purification 3. Pure matter and it’s properties 4. States of matter 5. Liquid crystals What is it? Anything that has mass and takes up space Our essential question all year: What is everything made out of? How do we find out ? Our essential question for this unit: 1. Introduction 2. Data 4. The Atom

3. Unit 3 Dr. B.’s ChemAdventure Matter 2 What is matter? Anything that has and occupies 1.What is it? 2. Mixtures: types 3. Mixtures: purification 3. Pure matter and it’s properties 4. States of matter 5. Liquid crystals mass space What is everything made out of? matter How do we find out what everything is made out of? We need to Classify it Matter is either a ElementMoleculeor a Mixture Constant properties Properties vary Separation needed

4. Unit 3 Dr. B.’s ChemAdventure Matter 3 1.What is it? 2. Mixtures: types 3. Mixtures: purification 3. Pure matter and it’s properties 4. States of matter 5. Liquid crystals Element, molecule, or mixture? element molecule mixture gold oceanmilk copper glass Think of an example of each. Element:MoleculeMixture

5. Unit 3 Dr. B.’s ChemAdventure Matter 4 Nothing is pure in this world. What can we say about mixtures? Looks pure but isn’t doesn’t look pure homogeneous heterogeneous One thing visible Multiple things visible Either way it’s still a mixture…until it is separated we don’t know Much about it. 1.What is it? 2. Mixtures: types 3. Mixtures: purification 3. Pure matter and it’s properties 4. States of matter 5. Liquid crystals Solutions: Gas-gas: Gas-liquid: liquid-liquid: solid-solid: solid-liquid: air soda Gasoline;vinegar Salt water brass;steel “a solution”“a mixture”

6. Unit 3 Dr. B.’s ChemAdventure Matter 5 want pure: 1.What is it? 2. Mixtures: types 3. Mixtures: purification 3. Pure matter and it’s properties 4. States of matter 5. Liquid crystals Purification: How to separate mixtures. oil: sandsugar Technique: decant filter crystallize distill chromatograph oils All. You have Sep ws lab

7. Unit 3 Dr. B.’s ChemAdventure Matter 6 Physical vs. Chemical Properties of Matter Click here to view movie clip. Stays the same New substance(s) formed Physical Properties include: Chemical Properties include 1.What is it? 2. Mixtures: types 3. Mixtures: purification 3. Pure matter and it’s properties 4. States of matter 5. Liquid crystals flammability rust Melting point density magnetism malleability ductility color Boiling point crystallinity Refractive index luster

8. Unit 3 Dr. B.’s ChemAdventure Matter 7 Extensive properties amount-dependent..”extent” Intensive properties- Doesn’t matter how much. Extensive and Intensive Properties Which 4 properties are amount-independent? Melting pointdensityRefractive index masstoxicity in ex 1.What is it? 2. Mixtures: types 3. Mixtures: purification 3. Pure matter and it’s properties 4. States of matter 5. Liquid crystals crystallinity crystalline amorphous

9. Unit 3 Dr. B.’s ChemAdventure Matter 8 melt boilcondense deposit cold hot 1.What is it? 2. Mixtures: types 3. Mixtures: purification 3. Pure matter and it’s properties 4. States of matter 5. Liquid crystals liquid solid gas Phase Changes freeze sublime coolheat

10. Unit 3 Dr. B.’s ChemAdventure Matter 9 1.What is it? 2. Mixtures: types 3. Mixtures: purification 3. Pure matter and it’s properties 4. States of matter 5. Liquid crystals 5 states of matter hot cold solid Liquid crystal liquid gas plasma no Yes- But ordered Yes Fills Container? Yes no yes no yes ?? State? Assumes Shape of Container? Compressible?

11. Unit 3 Dr. B.’s ChemAdventure Matter 10 Liquid crystals and plasmas 1.What is it? 2. Mixtures: types 3. Mixtures: purification 3. Pure matter and it’s properties 4. States of matter 5. Liquid crystals Coming next: the atom End matter Ordered liquidscharged gases Nematic liquid crystal: Linear alignment Smectic liquid crystal: Planar alignment Liquid crystal animationLi Plasma ball video Level 1 only