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Objectives:

Objectives:. 1. I can classify matter into substances and mixtures. 2. I can identify and distinguish between physical and chemical properties. 3. I can identify and distinguish between the two types of forces that affect the nature of molecules.

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Objectives:

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  1. Objectives: 1. I can classify matter into substances and mixtures. 2. I can identify and distinguish between physical and chemical properties. 3. I can identify and distinguish between the two types of forces that affect the nature of molecules. 4. I can understand and distinguish between physical and chemical changes. 5. I can identify techniques used to separate mixtures.

  2. Daily Objective I can define matter. I can identify and distinguish between the classes of matter.

  3. What is Matter?

  4. What does all matter have in common?

  5. What does all matter have in common?Atoms!

  6. What is Matter? • One or more atoms that take up space and has mass. • Emphasized that all matter’s properties and changes are due to the chemical make-up and interactions on the atomic level.

  7. Classification of Matter What are some terms associated with the classification of matter?

  8. Classification of Matter

  9. Classification of Matter Terms:element, compound, mixture, substance, homogenous mixture, and heterogenous mixture. • Define/illustrate each term above. 2. Use a graphic organizer to show how these terms are connected to matter and each other.

  10. Infinite Campus Update • Density Lab • Scientific Measurement Exam

  11. Classification of Matter

  12. Classification of Matter

  13. Elements • Smallest type of matter that maintains it properties. • Each element represents a different atom (natural or synthetic) • A symbol is used to represent each element.

  14. Elements

  15. Compound • Chemical Combination of substances in a fixed amount. • Each compound has a unique chemical formula. • Ex. Sodium chloride = NaCl • The chemical combination of substances produces new properties. • Sodium (Na) + Chlorine (Cl) = Salt (NaCl)

  16. Mixture • Physically mixed together, so each matter’s properties are preserved. • Use matter’s individual properties to physically separate from one another. • Mixture’s composition can vary.

  17. Heterogenous MixuresObserve multiple phases (parts) because the substances do not mix well.

  18. Homogenous MixturesSubstances mix so well it looks like one phase.

  19. Homongenous Mixtures Also called solutions. Solutions: -Solute: what is dissolved -Solvent: what dissolves Solubility= the ability of the solute to dissolve in the solvent. . NaCl + H2O

  20. Classification of Matter

  21. Exit Slip • Classify the following examples two ways: • Substance or Mixture? • Element, Compound, Heterogenous mixture or Homogenous mixture? • gasoline at the pump (C8H18 + other hydrocarbons) 2. glucose (C12H22O11) 3. aluminum foil 4. sand

  22. Classifying Matter:Substances vs. Mixtures

  23. Classifying Matter:Substances vs. Mixtures

  24. Classification of Matter

  25. Exit Slip • Classify the following examples two ways: • Substance or Mixture? • Element, Compound, Heterogenous mixture or Homogenous mixture? • gasoline at the pump • salt you garnish fries with • aluminum foil • sand

  26. Infinite Campus Update Density Lab Scientific Measurement Exam

  27. Classifying Matter • O2

  28. Classifying Matter • represents an atom • physical combination of substances • multiple phases • one phase • chemical combination of substances • same composition from sample to sample • individual properties are preserved when substances combine • varied composition from sample to sample • individual properties are lost and new properties are gained when substances combine • chemical formula • solution • atom’s symbol • substances dissolve in one another.

  29. Substances Element Compound Substance

  30. Mixtures Homogenous Mix Heterogenous Mix Mixtures

  31. Scientific Measurement Exam

  32. Objectives: 1. I can classify matter into substances and mixtures. 2. I can identify and distinguish between physical and chemical properties. 3. I can identify and distinguish between the two types of forces that affect the nature of molecules. 4. I can understand and distinguish between physical and chemical changes. 5. I can identify techniques used to separate mixtures.

  33. Infinite Campus Update • Density Lab • Scientific Measurement Exam

  34. Classification of Matter

  35. Classification of Matter Lab

  36. Classification of Matter Lab Questions

  37. Conclusion:Classification of Matter Lab • What was most beneficial about this lab? • What was most challenging about this lab? • How has this lab helped you make important connections and distinctions between the classes of matter?

  38. Classifying Matter Lab • Students with peers observe various samples of matter and classify them as an element, compound, homo mixture, or hetero mixture.

  39. Scientific Measurement Exam

  40. Classifying Matter 1. Classify each as either an element, compound, homo mixture, or hetero mixture a. soil b. orange juice with no pulp c. copper wire d. car gasoline (C8H18) 2. What is the difference between a compound and a mixture?

  41. Bell Ringer: Matter • What is the difference between: • substances and mixtures • compounds and mixtures 2. Classify each of the following examples: • sugar • sugar water • gold ring • Iron rust (FeO) • Italian dressing

  42. Classification of Matter

  43. Classifying Matter Lab • Students re-assess their classification of matter lab examples.

  44. Classifying Matter Lab • O2 = compound Why? • Because the subscript number represents atoms that are chemically bonded. • In this example, two atoms of oxygen are chemically bonded together.

  45. Chemical vs. Physical Change Chemical Change: • Matter’s chemical make-up changes. • New matter is produced with new properties • Ex. Iron Rust (FeO) Physical Change: • Matter’s chemical make-up stays the same. • Matter is the same, so most properties are the same. • Ex. Lemonade

  46. Intramolecular Forces Forces within a compound that holds the atoms together. Also called chemical bonds. H2O compound

  47. Types of Chemical Changes • Combustion • Decaying • Digesting • Baking • Neutralization (acidic and basic chemicals) • Growing • Spoiled

  48. Physical Changes • Physical process • Substance(s) chemical make-up is preserved so no new substance is produced. • Properties are preserved Ex. Making Lemonade

  49. Intermolecular Forces Forces between compounds in a sample of matter. (group forces)

  50. Types of Physical Changes • Most states of matter • Breaks • Dissolves • Crushes • Cuts • Absorbs

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