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Seating Chart

Seating Chart. Block 3 - Chemistry. Kenzi Coon. Samantha Taylor. Megan Snow. Dylan Smith. Kelsey Prye. Cody Peterson. Megan Nutting. Marissa Waite. Ulyana Nikolayeva. Kailyn Jennings. Valerie Granger. Joseph Howard. Taylor House. Sarah Harrington. Catherine Halstead.

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Seating Chart

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  1. Seating Chart

  2. Block 3 - Chemistry Kenzi Coon Samantha Taylor Megan Snow Dylan Smith Kelsey Prye Cody Peterson Megan Nutting Marissa Waite UlyanaNikolayeva Kailyn Jennings Valerie Granger Joseph Howard Taylor House Sarah Harrington Catherine Halstead Kyle Koehler Danielle Goncalves Jordan Bailey Hallie Gaffney Brooke Friot Danielle Gratz Tucker Barry Paige Barber James Adydan Kristina Gilbert Teachers Desk

  3. Block 7 - Chemistry Peter Whitaker Brikel Wilson Jonathan Wood Adam Perkins Ryan Ripka Taylor Rose Taylor Scranton Sierra Shaw Stanley Skotniski Jonathan Pastuf ZackeryStanard Susan Hillenbrand Christopher Masuicca Emily Hilliker Augustus Jordal Krista Kingsley Maurina Kirkland Briell Hardy Dylan Moran Tarissa Atkinson Shannon Gerni Mason Fahnestock Tiffany Brodeur Casey Bright Devin Borland Austin Gray Claire Atkinson Teachers Desk

  4. September 9, 2010 Welcome back! My name is Mr. Nylen, and I will be your Chemistry teacher this year. Please take this time to fill out the Student Information Card. Schedule: • Go over Syllabus • Hand in Student Information Sheet • Lab Safety PACS 2010

  5. Lab Safety & Lab Check in Carl Nylen Pulaski Academy High School 2008

  6. Why is Lab Safety Important? • Lab safety is a major aspect of every lab based science class. • Lab safety rules and symbols are needed so that students do not injure themselves or their classmates.

  7. Lab Safety Rules 1. Always follow the teacher’s directions and only do lab work when a teacher is present. 2. Conduct yourself in a responsible manner. 3. Do not touch any equipment, chemicals, or other materials until told to do so. 4. Do not eat food, drink beverages, or chew gum in the lab. Do not use lab glassware as food or beverage containers. 5. Report ALL accidents to your teacher immediately.

  8. Wear: Goggles/safety glasses Closed-toed shoes Tie back long hair Do NOT Wear: Sandals Jewelry Loose or Baggy clothing Clothing

  9. Safety Shower Safety Goggles Lab Safety Equipment Eye Wash

  10. Fire Extinguisher Fire Blanket Lab Safety Equipment Fume Hood

  11. Flammable Explosive Toxic/Poison Irritant Corrosive Environmental Other Chemical Hazards and Symbols

  12. Accidents and Injuries • Report ALL accidents and injuries to your teacher immediately!!! • Be aware of safety hazards associated with each chemical you use. • Eye accident – Wash the eye with copious amounts of water for at least 15 min. • Wear safety glasses and this will NEVER HAPPEN! • Fire Burns – Stop, Drop, and be covered with a fire blanket or soaked with water. Do not remove clothing stuck to victim. Get medical attention immediately.

  13. Waste Disposal • First ask your teacher where/how to dispose of waste. • Never pour anything down the drain unless you are told to do so. • A waste bottle will be supplied for substance that cannot go down the drain

  14. Reasons for proper waste disposal • Hazardous chemicals down the drain can lead to pollution of ground water, lakes, rivers, etc. • Plants and animals will die if they are exposed to hazardous chemical waste. • Serious health problems will become present in people if hazardous waste finds its way into drinking water.

  15. September 10, 2010

  16. Locating Safety/Emergency Equipment • This will be your first lab. First organize into your lab groups at the tables to the side of the room. • Lab Activity, take 15-20 minutes • You only need 1185 more minutes of lab time!

  17. Lab Groups Slide

  18. Tucker Barry Paige Barber Megan Nutting UlyanaNikolayeva Kristina Gilbert Brooke Friot Valerie Granger Danielle Goncalves Jordan Bailey Sarah Harrington Catherine Halstead Joseph Howard Taylor House Kelsey Prye Cody Peterson Megan Snow Dylan Smith Marissa Waite Samantha Taylor Kyle Koehler Hallie Gaffney Kenzi Coon Kailyn Jennings James Adydan Block 3 – Chemistry Lab Groups

  19. Jonathan Wood Sierra Shaw Peter Whitaker Dylan Moran Stanley Skotniski ZackeryStanard Ryan Ripka Taylor Scranton Adam Perkins Taylor Rose Tarissa Atkinson Krista Kingsley Maurina Kirkland Susan Hillenbrand Jonathan Pastuf Christopher Masuicca Briell Hardy Shannon Gerni Tiffany Brodeur Casey Bright Emily Hilliker Austin Gray Augustus Jordal Mason Fahnestock Block 7 – Chemistry Lab Groups Devin Borland Claire Atkinson

  20. Lab Station Check in • Familiarize yourself with the type of glassware we will be using all year. • Get a Check-In sheet and do a drawer inventory. (30 min lab) • If you are missing something, write it on a piece of paper and leave it on your table with your drawer OPEN • Only 1155 more minutes!

  21. Lab Equipment Beaker Erlenmeyer Flask Evaporating Dish Watch Glass Scoopula Gas collecting bottle Beaker Tongs Graduated Cylinder Crucible Tongs

  22. Sign and turn in safety contractPapers get turned in at the bins on the side of the room.

  23. September 10, 2010

  24. Today's Agenda • Begin Unit – Measurement • 5 minute problem set • Taking accurate measurements • Significant Figures

  25. Unit 1: Measurement Mr. Nylen Pulaski Academy High School 2008

  26. Reading instruments • What is an instrument? • A device used to gain quantitative information (information with numbers) • Examples: • Clock • Speedometer • Graduated cylinder • Beaker • Ruler

  27. Estimating and Measurement • All measurement have one and only one estimated digit. The reported measurements below DO NOT mean the same thing:

  28. Estimating Measurements • Each measurement is read from the ruler by estimating one digit (placeholder) beyond the smallest calibration on the ruler. Estimated measurements are read and recorded this way (to the correct # of significant figures)!

  29. Example

  30. Get a white board, tissue, and marker • I’m going to put up a measurement, you will need to write it to the correct number of significant figures

  31. Reading “Instruments” Answer: centimeters Smallest Calibration on Ruler Used: Answer: Smallest Calibration on Ruler Used:

  32. To what decimal place can you read the following instruments: Answer

  33. Reading Instruments Lab • There are five lab stations set up at the tables on the side of the room. • Go to your lab station and record the given measurement as accurately as you can on your white boards (remember you can always estimate one digit beyond the calibration of the instrument). • Write the name of the lab instrument being used • Switch stations once I see your answer and it is correct.

  34. September 13, 2010

  35. Why do we need significant figures? • I would guess that it is 25.632293 miles from here to my house. • 62/41 = 1.512195122… • How many do we need to round to? • Significant figures will tell you • The answer is right in front of you!

  36. What are Significant Figures • Significant “others” are important • They mean something to you • You aren’t the same without them • Significant “figures” are important • They mean something to a number • Numbers can “look” the same, but are scientifically different • Important when recording numbers in lab

  37. Notes Significant Figures • Use the Atlantic/Pacific Rule • If a decimal is Present, count from the Pacific side (L  R) • If a decimal is Absent, count from the Atlantic side (R  L) • Count all #’s, including zeros, starting with the first non-zero number

  38. Examples (pg. 1)(Work together on white boards) • 2 x 103 • 2.0 x 103 • 2000.0100 • 0.0002 • 0.00020 • 2000 • 2001 • 2000. • 2000.01

  39. What is a significant figure • A significant figure is a digit in a recorded measurement that adds to the certainty of the measurement. • If a digit is removed from the beginning or end of a measurement and a random digit is put in its place, but the overall measurement doesn’t really change, then it is significant.

  40. Guided Practice • Try doing a-j on the practice sheet provided in your notes (between page 2 and 3) • Look over the rules listed, you may use those or the Atlantic/Pacific way we mentioned. • Let me know if you have any questions!

  41. Practice: • Do the top of page 3. PACS 2008

  42. Go over top of page 3 PACS 2008

  43. Calculations with measurements • Notes: Values that don’t need to be calculated, or conversion factors, are not subject to anything “sig fig” related. They are exact numbers and represent the highest degree of accuracy possible. PACS 2008

  44. Multiplication and Division (pg. 2) • Answer is limited to the number containing the least amount of significant digits. • Examples PACS 2008

  45. Addition and Subtraction with Significant Digits • Limit significant digits to least number of decimal places present in ANY number • 1.50003 + 1.493003 + 11 = • 1.50003 + 1.490003 + 11.00013 = • Other examples: PACS 2008

  46. PACS 2008

  47. Notes pg. 3 PACS 2008

  48. PACS 2008

  49. Density Activity • Notes pg. 5-8 PACS 2008

  50. Hand out Reference Tables PACS 2008

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