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1. Diagnostic Questions Answer the following questions on a sheet of paper.

1. Diagnostic Questions Answer the following questions on a sheet of paper.

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1. Diagnostic Questions Answer the following questions on a sheet of paper.

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  1. 1. Diagnostic QuestionsAnswer the following questions on a sheet of paper. Pages 2-14 # 9, 13, 17

  2. Diagnostic Question - Answers 9. D * Density = mass / volume * 1000 milliliters = 1 liter 13. D * Rotting apples is a chemical change 17. C * Gasses are less soluble at higher temperatures. This is why soda gets “flat” when it warms up. Therefore, increasing the temperature would remove the carbon dioxide.

  3. Today’s Agenda • Diagnostic Questions • Review of Topics • SI & Metric System • Mixtures • Properties of Matter (Density) • States of Matter (Temperature) • Atomic Structure • Moving Questions • Practice Test Questions

  4. GEE Test Format • Session 1: 40 multiple-choice items • Session 2: 4 short-answer items • Session 3: 1 comprehensive science task • Includes: • 3 short-answer items • 1 extended constructed-response item

  5. GEE Science Test Strands

  6. SI (Systeme International) – Metric Sys. • Known and used by scientists all over the world • Uses base-10 (makes conversions and calculations easier)

  7. BASE SI UNITS • Length: meters (m) • Time: seconds (s) • Mass: grams (g) • Volume: liters (l) • Temperature: Kelvin (K)

  8. SI UNITS

  9. G M k m μ n deka (da) centi (c) hecto (h) deci (d) giga mega kilo Base milli micro nano SI UNIT PREFIXES

  10. G M k m μ n deka (da) centi (c) hecto (h) deci (d) giga mega kilo Base milli micro nano SI UNIT PREFIXES If you have 1.50 meters, how many cm do you have? 150cm If you have 4.2 grams, how many kilograms do you have? 0.0042g

  11. Reading a meniscus

  12. Temperature Conversions K = Kelvin C = Celsius F = Fahrenheit

  13. Properties of Matter

  14. MASSthe amount of matter in an object

  15. WEIGHTthe force of gravity on an object

  16. Weight vs. Mass • Weight • Mass Depends on gravity (changes depending on where you are) Stays the same EVERYWHERE!!!

  17. DENSITY • Mass • Volume A measure of the amount of matter in an object The amount of space an object occupies

  18. ??? • Which is more dense: • A brick or styrofoam? • A feather or air? • A 2x4 or water? • Ice or water? • Steel or water?

  19. 3 Phases of Matter

  20. 3 Phases of Matter • Solid • Liquid • Gas (Plasma would be a 4th)

  21. SOLIDS • Atoms and/or molecules are tightly packed and strongly bonded • Have definite shape • Have high density • Expand slightly when heated • Almost incompressible

  22. LIQUIDS • Atoms and/or molecules are tightly packed BUT bonds are stretched or broken • Have definite volume, but take the shape of their container • Has ability to flow • Expand slightly when heated • Almost incompressible

  23. GASES • Atoms and/or molecules are NOT bonded • Has NO definite shape • Expand without limit to fill any space • Low density • Very compressible

  24. Elements, Compounds, Mixtures • Element – one of the over 100 elements on the Periodic Table, exist as individual atoms • Compound – a chemical combination of two or more elements • Compounds have new and different properties from elements that make them up. • Mixture – two or more substances mixed but not chemically combined

  25. Mixtures

  26. Types of Mixtures: • Homogeneous • Heterogeneous

  27. Separating Mixtures • Filtration • E.g. how you separate coffee grounds from coffee (a filter) • Distillation • Boiling one substance (and capturing the gas) while leaving another behind • Chromatography • Phase transfer from a mobile mixture to a stationary phase

  28. An astronaut’s mass is 60 kg on earth. If the astronaut traveled to the moon and stood on the moon, his mass would be… • 600 kg • 60 kg • 10 kg • 0 kg

  29. The kinetic energy is greatest in which of the states of matter? • Solid • Liquid • Gas

  30. Gertrude cut two bars of different types of soap into four pieces each. She put one piece from each bar into each of four beakers. Which beaker contains the most dense liquid? A B C D

  31. Which of the images represents a mixture?

  32. An astronaut’s weight is 600 Newtons on earth. If the astronaut traveled to the moon and stood on the moon, his weight would be… • 6000 N • 600 N • 100 N • 0 N

  33. Which state of matter expands and contracts depending on the size of its container? • Solid • Liquid • Gas

  34. Which of the images represents an element?

  35. END OF DAY 1

  36. 2. Diagnostic QuestionsAnswer the following questions on a sheet of paper. Don’t write in the books pages 7-13 # 1, 11, 15, 19, 21, 25, 29 Practice & Assess Workbook

  37. Diagnostic Answers 1. B - Electrons 11. D – liquids are free to move… 15. B – aerobic respiration 19. B – increase rate of chem rxn 21. D – valence electrons 25. D – 5 (the nucleus) 29. C – ionic compound

  38. Today’s Agenda • Diagnostic Questions • Topic Review • Atomic Structure • Periodic Table • Types of Matter • Chemical Reactions • Moving Questions

  39. Atomic Structure

  40. Two major parts of an atom Nucleus (not to scale) Electron Cloud

  41. Three Major Sub-Atomic Particles • Protons • Neutrons • Electrons

  42. p+ THE PROTON • Fat (heavy) • Positive (charge) • Doesn’t move (lazy)

  43. N° THE NEUTRON • Fat (heavy) • Neutral (charge) • Doesn’t move (lazy)

  44. e- THE ELECTRON • Skinny (very light) • Negative (charge) • Moves a lot (runs around)