1. Safety Symbols
See page 552
(c) McGraw Hill Ryerson 2007

2. Safety Symbols
See page 552
(c) McGraw Hill Ryerson 2007

3. WHMIS Symbols
(c) McGraw Hill Ryerson 2007

4. Scientific Inquiry Observations Hypothesis Experiment Conclusions
___________ vs ____________
Hypothesis
_____… _____…
Experiment
One variable at a time
_________ and ___________ variables
Conclusions
_______________
Theory
Many experiments support the hypothesis
See page 553
(c) McGraw Hill Ryerson 2007

5. Technological Problem Solving
Identify the problem
Establish ________ for the solution
Plan and Construct
___________ success
See page 557
(c) McGraw Hill Ryerson 2007

6. Societal Decision Making
Identify an ____________
Gather information
Identify ______________
Make a decision
____________ the decision
See page 559
(c) McGraw Hill Ryerson 2007

7. “In the house, then up the stairs” (x,y) _______________________
Graphing
“In the house, then up the stairs” (x,y)
(_______________ , ______________)
_______________________
_____________
Practice on Computers…
See page 562
(c) McGraw Hill Ryerson 2007

8. Make it _______________ to show details ___________ details
Scientific Drawings
Make it _______________ to show details
___________ details
Drawn ___________ (show scale)
See page 568
(c) McGraw Hill Ryerson 2007

9. If there are 85,000 cells, you don’t want to count each one…
Estimating
If there are 85,000 cells, you don’t want to count each one…
Weeds per hectare
Crowd estimation
See page 570
(c) McGraw Hill Ryerson 2007

10. Measuring Meniscus ______________ __________________ See page 572
(c) McGraw Hill Ryerson 2007

11. Reading a Scale
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12. Compound Light Microscope
Know the parts…
Carry it correctly
See page 577
(c) McGraw Hill Ryerson 2007

13. Microscope Field of View
Always start on ______ power
Always make sure the stage is ___________ than the objective lens when a slide is in place
Place a clear mm ruler on stage and focus under low power, measure diameter of field of view.
Move to medium power and repeat.
Make a wet mount of a single hair and estimate it’s diameter
See page 578
(c) McGraw Hill Ryerson 2007

14. _________-based system of measurements Units with prefixes
Metric System
_________-based system of measurements
Units with prefixes
See page 586
(c) McGraw Hill Ryerson 2007

15. SI Units (Système International)
A bit different than “Metric” units
Intended to ____________
See page 587
(c) McGraw Hill Ryerson 2007

16. Scientific Notation
See page 588
(c) McGraw Hill Ryerson 2007

17. The Factor-Label Method
Start with the number having ____________ units
Multiply by factors that _________ ______ properly till you get to the desired unit
ie: How many seconds are there in 1.25 days?
(c) McGraw Hill Ryerson 2007

18. How many cm are there in 8.6km ? Convert 65km/hr to m/s
Metric Conversions
How many cm are there in 8.6km ?
Convert 65km/hr to m/s
See page 587
(c) McGraw Hill Ryerson 2007

19. Significant Figures (sig figs)
____________ zeros never count
______________ zeros always count
____________ zeros only count if a decimal place is present
See page 590
(c) McGraw Hill Ryerson 2007

20. Adding and Subtracting and sig figs
Your answer can only have one ____________ digit
ie: 2.3mL mL mL = mL
= 22.5mL
But, they were all measured in different pieces of glassware…
the “3” in the first measurement is uncertain, so the 4 in the answer is also uncertain, so the answer must be rounded to one decimal place.
See page 590
(c) McGraw Hill Ryerson 2007

21. Multiplying and Dividing and sig figs
See page 590
(c) McGraw Hill Ryerson 2007

22. Combined Operations and sig figs
See page 590
(c) McGraw Hill Ryerson 2007