Math homework less then half

here it is match each quantity with an appropraite metric unit? explain why 

 

length of your thumb 

 

mass of a book 

 

length of a soccer feild

 

amount of water in a fish bowl 

 

mass of an eraser 

amount of fluid in a straw 

 

 

 

 

 

gram

metter

centimeter

milliliter

liter

kilogram