558' 



EVERYDAY SCIENCE 



Cubic Measure. The smaller unit of volume in the 

 metric system is the cubic centimeter. It is the volume of 

 a cube the edges of which are one centimeter long. The 

 cubic inch equals (2.54) 3 or 16.387 

 cubic centimeters. The relative sizes 

 of the two units are shown here. 

 In the English system the cubic foot 

 and cubic yard are employed for larger 

 volumes. The cubical capacity of a 

 room or of a freight 

 car would be ex- 



CUBIC CENTIMETER AND pressed in cubic feet ; 

 the volume of build- 

 ing sand and gravel or of earth embank- 

 ments, cuts, or fills would be in cubic yards. 

 The unit of capacity for liquids in the 

 metric system is the liter. It is a decimeter 

 cube, that is, 1000 cubic centimeters. The 

 imperial gallon of Great Britain contains 

 about 277.3 cubic inches, and holds 10 

 pounds of water at a temperature of 62 

 Fahrenheit. The United States gallon has 

 the capacity of 231 cubic inches. 



Common Units in the Metric Svstem : 



CYLINDRICAL GLASS 

 GRADUATE 



1 cubic meter (m. 3 ) = 1000 liters (1.) 



1 liter = 1000 cubic centimeters (cm. 3 ) 



Common Units in the English System : 



1 cubic yard (cu. yd.) = 27 cubic feet (cu. ft.) 



1 cubic foot = 1728 cubic inches (cu. in.) 



1 U. S. gallon (gal.) = 4 quarts (qt.) = 231 cubic inches 



1 quart = 2 pints (pt.) 



