1.  Dimensional Analysis, Review, Ch 1 Quiz Chemistry GT 9/8-9/15

2. Drill  In October 1958, Oliver Smoot (an MIT student) was used to measure the length of the Harvard Bridge. It was found to be 364.4 smoots long.  1 smoot = 67.0 in (5’7”), 1 yard = 0.9144 m  How long is the bridge in meters? If it takes 8.0 minutes to walk across the bridge, what is your speed in meters per second?  Have HW (with all work!) out on desk

3. Objectives  IWBAT  Use scientific notation, significant figures, dimensional analysis, and SI units to do calculations with great accuracy and precision.  Explain lab safety.  HW:  4A – study for the QUIZ  4B – Elements, Compounds, Mixtures poem and Qs

4. Agenda  Drill  HW Review  Dimensional Analysis Work/Practice  Kahoot Review  4B – Unit 1 QUIZ  Closure

5. 4A—HW Review  Dimensional Analysis Practice Problems  Let’s review these!

6. 4A – Metric Conversions  A human hair can be as thick as 181 um. How many millimeters is that?

7. 4A – Dimensional Analysis Practice  Unit Conversions and Factor-Label Method WS  English to Metric Conversion Practice WS

8. 4A – Review  Chapter 1 Pretest  On the back, number the problems.  Cross out #5, 6, 14, 15  Unit 1 Kahoot  Be ready for the QUIZ on Thursday! First thing in class, no review ahead of it.  Come to Lion Time tomorrow, if you want more help. I’ll be in N211.

9. 4A—HW Review  Unit Conversions and Factor-Label Method  I’ll read the answers—let me know which ones you want me to go over!

10. 4A – Closure/Exit Ticket  A person weighs 152 lb. How many grams is that?  NOTE: 1 kg = 2.2 lb

11. 4B – Review  Metric conversion stations  Unit 1 Kahoot

12. Unit 1 Quiz!  Clear your desks except for:  Pencil/Pen  Calculator  Make a space between you and the person next to you— evenly spaced desks.  When done, turn it in at the side desk.  You have 30 minutes.  Pick up the Element/Compound/Mixture poem and questions when done.

13. Closure  Give examples of  Elements  Compounds  Mixtures