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Purpose: Assessing your knowledge of the Scientific Method.

Agenda 9.8.10 1. Please sit in your assigned seat 2. If your safety contract or syllabus is not in, submit it now, please. 3. Record HW: Finish Using SI units for Fri. 4. Submit Obs. Vs. Interpretation to In Bin 5. Any questions about safety? 6. QUIZ TAKING CONDITIONS

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Purpose: Assessing your knowledge of the Scientific Method.

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  1. Agenda 9.8.10 1. Please sit in your assigned seat 2. If your safety contract or syllabus is not in, submit it now, please. 3. Record HW: Finish Using SI units for Fri. 4. Submit Obs. Vs. Interpretation to In Bin 5. Any questions about safety? 6. QUIZ TAKING CONDITIONS 7. Take Safety Quiz- 8. Get ready to take notes “Metric System” 9. Cross out a few problems 10. Metric Practice 11. Finish all practice questions for HW Purpose: Assessing your knowledge of the Scientific Method.

  2. If you’re done with your quiz • Please get out a piece of lined paper. • Then write down what you already know about the metric system. • What do you want to know?

  3. Why do scientists use SI? • To communicate with other scientists! • B/c it’s easy- you only x or ÷ 10 a certain # of times!

  4. There’s 2 parts of the word. • The beginning part is the prefix. • Base unit. What are our metric base units? • That’s right: meters (m), liters (L) and grams (g).

  5. What are the prefixes? • Pre- before kilo- hecto- Deca- base unit (gram, meter, Liter) deci- centi- milli-

  6. What’s a mnemonic? • A memory trick using the first letters of words! • I use these all the time!

  7. Prefix mnemonic • kangaroos • hop • Down • mountains/gullies/Lagoons • drinking • chocolate • milk

  8. Converting • k = 1000 • h = 100 • D = 10 • g/m/l = 1 • d = 1/10 • c = 1/100 • m = 1/1000

  9. Converting • k = 1000 • h = 100 • D = 10 • g/m/l = 1 • d = 1/10 • c = 1/100 • m = 1/1000

  10. Converting • k = 1000 • h = 100 • D = 10 • g/m/l = 1 • d = 1/10 • c = 1/100 • m = 1/1000

  11. Converting • k = 1000 • h = 100 • D = 10 • g/m/l = 1 • d = 1/10 • c = 1/100 • m = 1/1000

  12. Converting • k = 1000 • h = 100 • D = 10 • g/m/l = 1 • d = 1/10 • c = 1/100 • m = 1/1000

  13. Converting • k = 1000 • h = 100 • D = 10 • g/m/l = 1 • d = 1/10 • c = 1/100 • m = 1/1000

  14. Converting • k = 1000 • h = 100 • D = 10 • g/m/l = 1 • d = 1/10 • c = 1/100 • m = 1/1000

  15. Operations! • For each step up ÷ 10. If you’re going from pennies to $, you have less $, right? • For each step down x 10. If you’re going from $ to pennies, you have more pennies, right?

  16. Alternative method! kangaroos hop Down moun/gull/Lagoons milk drinking chocolate If you move to right, decimal moves the same number of times to the right! If you move to left, decimal moves the same number of times to the left!

  17. Practice • 1cm = ? mm • 10hg = ? kg • 112 L = ? DL • 5dm = ? m

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