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Browse Elementary Terms & Units of Measurement
Stars indicate particularly interesting answers or
good places to begin browsing.
Selected answers to common questions:
Equivalent measurements: tsp, oz, pt, lb.
Measuring with Two Containers.
Metric Measurements.
Meters Squared or Square Meters?
Unit conversions, unit cancellation.
 Linear Foot [7/1/1996]

How much is a linear foot?
 Liquid Quart vs. Solid Quart [04/27/2001]

Why does a liquid quart consist of 57.75 cubic inches, whereas a solid
quart consists of 67.2 cubic inches?
 Measuring by Degrees [06/16/2002]

Why is it that angles and temperature are both measured in
degrees?
 Meters, Centimeters [03/12/2001]

How many times as long as 2 centimeters is a meter stick?
 Metric and Standard Rulers [04/20/2001]

In the United States we only use a customary (standard) ruler, and in
other parts of the world they use the metric side. Why do we just use the
standard side?
 Metric Conversion [10/23/1996]

How many meters is 67 centimeters equal to?
 Metric Cup [05/15/2000]

How many milliliters are there in a metric cup?
 Metric Prefixes [9/15/1996]

What are the metric prefixes for 10e4, 10e5, 10e7, 10e8 and the
corresponding neg. values?
 Metric System Conversions [09/24/1998]

I need help with double conversions  for example, how many centimeters
are there in 14.25 decameters?
 Metric vs. Standard System [08/19/2001]

Compare and contrast the advantages and disadvantages of the metric
system and the standard system using weights and measures.
 Miles Squared vs. Square Miles [07/09/1999]

What is the difference between 10 square miles and 10 miles square?
 Nautical Mph/Knots [08/12/2003]

I want to know how fast the wind is blowing when the weather report
states 5 knots.
 NonMetric Countries [04/23/2001]

What countries other than the U.S. are not using the metric system, and
why?
 A Peck of Peppers [02/27/2002]

If Peter Piper picked a peck of pickled peppers, how many pickled peppers
did Peter Piper pick? How much is a peck?
 Pennies in a Mile [04/23/1999]

How many pennies are there in a mile?
 The Pound Sign [04/06/2001]

Can the # symbol be used to represent the weight unit 'pounds'?
 Proper Abbreviation of Measurement Units [03/04/2004]

Is a period used after the abbreviations for the customary units of
measurement? In the past, I understood that all abbreviations used a
period. Now, I typically see inch as in., but ofter see foot (ft),
yard (yd), and others with no period.
 Quarts in a Gallon [03/20/2001]

Is there a way not to have to memorize a whole chart of unit conversions?
 Rules for Significant Figures and Decimal Places [03/23/1999]

Accurate measurement: What are significant digits? When do we use them?
Why?
 Square Centimeters and Centimeters Squared [07/09/2004]

If it's pronounced '1 square centimeter' why is it abbreviated 1 cm^2?
Why don't they just say 1^s cm? The ^s would stand for square and it
would be much easier to understand.
 Teaching the Metric System [08/18/2000]

How can I teach my second grader about the metric system? I have no idea
how to read a metric ruler or how to convert inches into the metric
system or vice versa.
 Unit Conversions [4/3/1996]

How many feet are contained in an acre?
 Units and Square Units in Measuring Perimeter and Area [01/02/2005]

Why is perimeter measured in units and area measured in square units?
 Why Is a Circle 360 Degrees? [07/01/1998]

Why is a circle defined as 360 degrees?
 Why Is 'Pound' Abbreviated 'lb'? [03/08/2004]

Why is "pound" abbreviated lb? Is it because of its Latin roots? I know libra means pound. What is the history of it?
 Word for a 225th Birthday [07/10/2001]

This year America is celebrating its 225th birthday. As we celebrated the
bicentennial in 1976, is there a term for 225 years?
 Writing 'Square Foot' [05/05/2001]

Is there a symbol for "square foot"?
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