Strictly Scientific
Significantly Important Rules
The S.I. Unit, Reporting for Duty
King Henry Died drinking chocolate milk
As a matter of factor...
100
This is the form of a number we use to represent very small or very large quantities.
What is SCIENTIFIC NOTATION?
100
All of these are significant in a measurement.
What are NON-ZERO DIGITS?
100
This is the number of basic units we will be using in Chemistry.
What is FIVE?
100
This is the number on which the metric system is based.
What is TEN?
100
This is what we call the fraction we multiply with to change one unit into another.
What is a CONVERSION FACTOR?
200
This is a quantity that has both a number and a unit.
What is a MEASUREMENT?
200
When these digits appear between non-zero digits, they are then counted as significant.
What are ZEROS?
200
This is the name of the system which has the abbreviation S.I.
What is THE INTERNATIONAL SYSTEM OF UNITS (French is Ok)?
200
This is the prefix we would use to say "a thousand meters"
What is KILO (or kilometer)?
200
The two units in the fraction we use to multiply must be this.
What is EQUIVALENT? (EQUAL)?
300
These two measures tell us how close values are to each other and an accepted value.
What are PRECISION and ACCURACY?
300
In addition and subtraction, the number of significant digits in our answer depends on this.
What is THE MEASUREMENT WITH THE FEWEST NUMBER OF DECIMAL PLACES?
300
While not an S.I. unit, this is the unit that we commonly use to measure volume.
What is the LITER?
300
These are the next three smaller prefixes, after milli.
What are MICRO, NANO and PICO?
300
Multiplying 2.951 x 0.0030 will produce an answer with this many significant figures.
What is TWO?
400
This is what we calculate when we subtract the accepted value from an experimental value.
What is the ERROR?
400
In Multiplication and Division, this determines the number of sig figs in our answer.
What is THE MEASUREMENT WITH THE FEWEST SIG FIGS?
400
The S.I. units grams per cubic centimeter, are commonly referred to as this.
What is DENSITY?
400
*These are the next three larger units after kilo.
What are MEGA, GIGA and TERRA?
400
When converting any measurement, we ALWAYS pay attention to these first.
What are the UNITS?
500
These are all the known digits in a number plus an estimated one.
What are SIGNIFICANT DIGITS (FIGURES)?
500
*This is the number of sig figs in the number 20,000
What is ONE?
500
This scale of temperature contains a measurement called "absolute zero".
What is KELVIN?
500
This is what we call the units in the middle of our "ladder" chart.
What are BASIC UNITS?
500
*This is the name of the method we learned for converting one unit to another.
What is DIMENSIONAL ANALYSIS?
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