1. “its all about the motion, motion…”
Forces and Motion Unit!
“its all about the motion, motion…”

2. Review of Measurement and the Metric System
What is a measurement?
When you measure, you compare an unknown value with a known value.
How much do you weigh? pounds (55kg)
How hot is it outside? F (22°C)
How far away is the store? 1 mile (1.6 km)
How much soda is left? ½ gallon (2 Liters)

3. Why do we need a STANDARD UNIT of measure in Science?
There are so many different units of measurement in the world…
Americans measure in feet and inches…
Canadians measure in meters…
A horse race is measured in furlongs…
Sailors travel distances in leagues…
And that’s just measuring distance!

4. If you think that’s complicated…
An American gallon is smaller than a Canadian gallon!
We all know a TON weighs a lot, but:
- a U.S. short ton weighs 2000 pounds
- a U.S. long ton weighs 2,240 pounds
- a nautical ton equals 100 cubic feet
- a freight ton equals 40 cubic feet…

5. So, what’s the solution? A STANDARD MEASUREMENT SYSTEM
In science, we use the Metric System as the International System of Units (SI).
This standard system of measurement allows scientists to compare data and communicate with each other about results.

6. Making a foldable Length or Distance Mass Metric Measurement
Temperature
Liquid Volume

7. Making a foldable
Use pg. 14 – 18 in your text book to fill in the information on your foldable:
For each type of measurement (Mass, Length, Volume, and Temperature):
- Give the definition
- What unit is it measured in?
- What is the symbol for the unit?
- What equipment do we use to measure it?
- Give some everyday examples!

8. X Mass Mass = the amount of matter (stuff) an object contains.
Unit = Grams (g) pounds
Mass is measured with a balance.
Examples:
1 large paperclip = 1 g
A wooden baseball bat = 1 kg (1000 g) X

9. X X Length or Distance Length = the distance from 1 point to another
Unit = meter (m) feet and inches
Length is measured with a ruler.
Examples:
A Track = 400 m
A regular ruler = 30 cm (0.3 m)
Floor to the Doorknob = 1 m X X

10. X X Liquid Volume Volume = the amount of space something takes up.
Unit = Liters (L) gallons ounces
Liquid Volume is measured
with a graduated cylinder.
Examples:
Large Bottle of Soda = 2 L
Can of Soda = 355 mL (0.355 L) X X

11. X Temperature Temperature = how hot or cold something is.
Unit = degrees Celsius (°C) Fahrenheit
Temperature is measured
with a thermometer.
Examples:
Water freezes at 0°C.
A very hot day is 30°C.
Water boils at 100°C. X

12. English  Metric Conversions
T. Trimpe

13. English & Metric Conversions

15. Metric Conversions Ladder Method
T. Trimpe

16. 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

17. 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
Compare using <, >, or =.
56 cm m 7 g mg

18. Or another way to look at it…

19. Metric Conversion Challenge
Write the correct abbreviation for each metric unit.
1) Kilogram _____ 4) Milliliter _____ 7) Kilometer _____
2) Meter _____ 5) Millimeter _____ 8) Centimeter _____
3) Gram _____ 6) Liter _____ 9) Milligram _____
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

20. 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