1. Measurement

2. Why do we care?
 In order for measurement to be useful, a measurement standard must be used.

3. These units can measure time, temperature, mass, volume, length, etc
Measurement Standard
In science we use SI Units (Systeme Internationale) as our standard.
A standard is – an exact quantity that people agree to use for comparison.
These units can measure time, temperature, mass, volume, length, etc

4. SI Units
Gram (g)
• SI Unit for Mass ___________________________________
• SI Unit for Length __________________________________
• SI Unit for Temperature _____________________________
• SI Unit for Time ____________________________________
• Common Unit for Volume _____________________________
Meter (m)
Kelvin (k)
Second (s)
Liter (L)

5. More on Time & Temperature
We will be working on measuring length, mass, and volume
in upcoming lessons.
Time (seconds) – The interval between events. A stopwatch or clock measure time.
Temperature (kelvin) – Measures the heat energy of an object. A thermometer measures temperature
Did you know?
“Cold” does not actually exist
Did you know?
Time is NOT
constant

6. Absolute Zero Fun with Liquid Nitrogen Why “Kelvin”?
What the heck is “Kelvin”
0 K is absolute zero!
Heat makes molecules move. At 0 (zero) K, all molecules are completely still. No heat energy is present!
Fun with Liquid Nitrogen

7. How do you convert Celsius to Kelvin???
• To convert Celsius to Kelvin you simply add 273.
□ 10 °C = __________K
□ 48 °C = __________K
□ 326 °C = __________K
283
321
599
• To convert Kelvin to Celsius you simply subtract 273.
□ 273 K = __________°C
□ 380 K = __________°C
□ 10 K = __________°C
107
-263

8. More on Measurement
Scientists work with very large numbers and very small numbers. They use something called “scientific notation” to avoid using measurements like…
93,000,000,000,000,000 units
units
If you measured this way, LOTS of ERRORS would occur.
So, scientists convert by bases of 10…. 8

9. The Magical Metric Staircase
1000
Kilo (K)
1 kilogram = 1000 grams
grams
king
Hecto (H)
100
1 hectogram = 100 grams
grams
henry 10
Deca (D)
1 decagram = 10 grams
grams
died
1 gram = 1 gram 1
Base (B)
Base = grams, meters, etc by .1
1 decigram = .1 grams
Deci (D)
grams
drinking
1 centigram = .01 grams
.01
Centi (C)
grams
chocolate
1 milligram = .001 grams
.001
Milli (M)
grams
milk

10. How to CONVERT
The Magical Metric Staircase
1000 .
Kilo (K) .
Hecto (H)
100 10 .
Deca (D) 1 .
Base (B)
grams .1
Deci (D)
.01
Centi (C)
ALL numbers have a decimal. First, find the decimal.
.001
Milli (M)

11. A blue whale is 3100 centimeters long…
A blue whale is 3100 centimeters long….is there an easier way to tell the length than saying 3100 centimeters?

12. Example: A blue whale is 3100 centimeters long…
Example: A blue whale is 3100 centimeters long….is there an easier way to tell the length than saying 3100 centimeters?
1000
Kilo (K)
100
3100. cm
Hecto (H)
310.0 dm 10
Deca (D)
31.00 m
meters 1
Base (B) .1
Deci (D)
Move the decimal LEFT if converting up.
Move the decimal RIGHT if converting down.
.01
Centi (C)
.001
Milli (M)

13. Example: A tiny amoeba is. 0004 m long
Example: A tiny amoeba is m long. Is there an easier way to give the length of the amoeba?
1000
Kilo (K)
.0004 m
Hecto (H)
100
0.004 dm 10
Deca (D)
00.04 cm
.4 mm
meter 1
Base (B) .1
Deci (D)
Move the decimal LEFT if converting up.
Move the decimal RIGHT if converting down.
.01
Centi (C)
.001
Milli (M)

14. Google Earth
The distance from Holley to Lake Ontario is meters…..is there an easier way to tell the distance?

15. Example: The distance from Holley to Lake Ontario is 16576. 2 meters…
Example: The distance from Holley to Lake Ontario is meters…..is there an easier way to tell the distance?
1000
Kilo (K)
100 m
Hecto (H)
dam 10
Deca (D) hm
meters 1
Base (B) km .1
Deci (D)
Move the decimal LEFT if converting up.
Move the decimal RIGHT if converting down.
.01
Centi (C)
.001
Milli (M)