1. Make a list of metric measurements and English Measurements
1.4 Metric System Do Now:
Make a list of metric measurements and English Measurements

2. Scientific Measurements
Most scientist use the metric system (also known as the International System of Units, SI) when collecting data and performing experiments.
Why do you think we all use the metric system?
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3. King Henry Died Unexpectedly Drinking Chocolate Milk
Metric ~vs~ English
Volume
Length
Mass
Meter (m) Gram (g) Liter (L) Celsius (°c)
Foot (ft) Yard (yd) Pound (lb) Quart (qt) Gallon (gal) Fahrenheit (F)
King Henry Died Unexpectedly Drinking Chocolate Milk
Temperature

4. Prefix Means Kilo (k) 1000 times Hecto (h) 100 times Deka (dk)
Deci (d)
0.1 times
Centi (c)
0.01 times
Milli (m)
0.001 times

5. Write the correct abbreviation for each metric unit.
Kilogram _____ 6) Liter _____
2) Meter _____ 7) Kilometer _____
3) Gram _____ 8) Centimeter _____
4) Milliliter _____ 9) Milligram _____
5) Millimeter _____ 10) dekameter _

6. Only 3 things YOU need to know for metric conversions:
You need to be able to count to 6
Know your left from your right
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That’s it!
X X

7. How many jumps does it take?
Ladder Method 1 2 3
KILO 1000 Units
HECTO 100 Units
DEKA 10 Units
DECI 0.1 Unit
Meters Liters Grams
CENTI 0.01 Unit
MILLI Unit
How do you use the “ladder” method?
1st – Determine your starting point.
2nd – Count the “jumps” to your ending point.
3rd – Move the decimal the same number of jumps in the same direction.
4 km = _________ m
Starting Point
Ending Point
How many jumps does it take? 4. 1
__. 2
__. 3
__.
= 4000 m

8. King Henry Died Unexpectedly Drinking Chocolate Milk
The decimal moves the same number of places as steps and in the same direction.
King Henry Died Unexpectedly Drinking Chocolate Milk
35 kg = _________cg
3,500,000
You jump 5 spaces to the right.
So you move the decimal 5 spaces to the right!

9. Conversion Practice Try these conversions using the ladder method.
1000 mg = _______ g 1 L = _______ mL 160 cm = _______ mm
14 km = _______ m 109 g = _______ kg 250 m = _______ km
1.0
1000
1600
14,000
0.109
0.250
Compare using <, >, or =.
56 cm m 7 g mg
<
600cm
>
0.698g

10. Metric worksheet

11. Metric Conversion Challenge
Try these conversions, using the ladder method.
10) 2000 mg = _______ g 15) 5 L = _______ mL 20) 16 cm = _______ mm
11) 104 km = _______ m 16) 198 g = _______ kg 21) 2500 m = _______ km
12) 480 cm = _____ m 17) 75 mL = _____ L 22) 65 g = _____ mg
13) 5.6 kg = _____ g 18) 50 cm = _____ m 23) 6.3 cm = _____ mm
14) 8 mm = _____ cm 19) 5.6 m = _____ cm 24) 120 mg = _____ g

12. Compare using <, >, or =.
25) 63 cm m 27) 5 g mg 29) 1,500 mL L
26) 536 cm dm 28) 43 mg g 30) 3.6 m cm

13. D. Temperature = degrees Celsius
1. Measures how much heat something contains
2. To convert from Fahrenheit to Celsius:
5/9 x (oF -32)

14. Determine the temperature in Fahrenheit
(Lets use 60oF as an example)
b. Using your calculator, subtract 32
c. Multiply the result times 5
d. Divide that answer by 9
e. Your final answer is the temperature in Celsius
(Our example: about 16 oC)

15. Celsius to Fahrenheit 9/5 (oC) + 32
Try this one: Change 30 oC to degrees Fahrenheit

16. Celsius to Fahrenheit
Answer: 86 oF

17. Try Some on Your Own!
Convert 75 oF to oC
Convert 40 oF to oC

18. 30°C is hot,
20°C is pleasing,
10°C is not,
0°C is freezing.

19. III. Microscopes A. We use light microscopes
B. Also called compound microscopes (2 lenses)
1. this is why the images appear upside down and backwards

20. C. Electron Microscope – Uses electrons to produce images instead of light
1. can magnify 500,000 times
2. uses a vacuum so specimens are not alive

21. Types of Electron Microscopes
Scanning Electron Microscope (SEM)
Produces 3-D image
Electrons bounce off gold-coated specimen
Transmission Electron Microscope (TEM)
Produces a 2-D image
Electrons beam through specimen

22. The samples shown above are (clockwise from top left) an ant (Lasius flavus), passion fruit (Passiflora caerulea) pollen, a  freshwater shrimp parasite (Epistillis sp.), sunflower (Helianthus anuus) pollen and central, a greenbottle (Lucilia sericata) foot.