1. Measurement
& Metrics

2. How Do You Measure Up? 10/9/13
Key Question: What does Volume and Mass measure? Initial Thoughts:

3. Evidence 1: Notes & Practice

4. SI Measurements (also known as “metric system”)
“SI” stands for “System International” or “International System of Measurement”

5. SI Measurements (also known as “metric system”)
What about it?
Common Language for scientists
Based on units of 10
Multiply or divide to go up or down when converting units
Prefixes determine “how much” of a unit

7. SI Measurements (also known as “metric system”)
Important BASE units to remember:
METERS = m (measures distance or length)
Measure with ruler/meterstick

8. LITERS = L (measures volume — how much space something takes up)
Measure with graduated cylinder/beaker
Or with a ruler (length x height x width)

9. GRAMS = g (measures mass)
Measure with triple beam balance/scale

10. oCELSIUS = oC (measures temperature)
Measure with thermometer

11. BASE UNIT (liter, meter, gram)
Important PREFIXES to remember:
k = kilo- (means “1000”)
h = hecto-(means “100”)
D = deca-(means “10”)
BASE UNIT (liter, meter, gram)
d = deci-(means “1/10” or 0.1)
c = centi- (means “1/100” or .01)
m = milli- (means “1/1000” or .001)

12. Kids Have Dreams But Cost Money
Easy way to remember the order of prefixes:
Kids
Have
Dreams
But
Cost
Money
Measurement by Brainpop

13. Practice 1 meter (think meter stick) Equals 100 cm Equals 1000mm
Challenge: How many kilometers?
1 meter Equals 1/1000 km

14. Triple Beam Balance Go to my SWIFT page. Click on Links
Click on Triple Beam Balance Practice

15. Evidence contd.
With your table partner, complete the bottom questions 1-10.
Reminder: remember Participation. Everyone should be contributing.

16. Evidence 2: Measurement Lab
There are 8 stations. Read the instructions and record your answers in your journals. MAKE SURE TO WRITE DOWN THE NUMBER OF THE STATION

17. Measuring Liquids How many ml of water is shown in the picture?
Always measure from the bottom of the meniscus.
Answer: 6.6 ml

18. Measuring VOLUME by displacement
Used to measure irregular or non-box shapes.
When you can’t measure length x height x width
5.6 – 4.8 = 0.8 ml

19. Measuring Mass
What is the mass? Don’t forget to include units!!!

20. Station #9
Use your hand measurement from the Going the Distance lesson.
Convert from centimeters to:
Decimeters, meters, decameters, kilometers

21. Analysis Questions
Name 2 different base units that could measure the amount of water a fish tank could hold.
Why is the number 10 important in the metric system?
Why would the prefix “kilo” be more useful than “tera” (1 trillion)?

22. Summary

23. Reflection: Come up with your own Metric Mnemonic:
i.e. Kids Have Dreams But Dreams Cost Money
Kilo Hecto- Deca (BASE) Deci Centi Milli- OR
King Henry Doesn’t Usually Drink Chocolate Milk
Kilo Hecto- Deca (unit) Deci Centi Milli-

24. Big Idea What is the big Idea of metric units & conversion?
Metric prefixes are multiples of 10 and can be easily converted by moving the decimal.

26. Get the sheet by the door and glue it into your lab notebook
Get the sheet by the door and glue it into your lab notebook. Fill in the “guess” column Today: Metric Olympics!!! Goal: To test your ability to take accurate metric measurements for length, volume and mass.

27. Metric Olympics You will work with a partner
Everyone must take measurements and fill out their own data sheet
You must remain on task
It’s important that we are respectful of other classes