Lesson 4 Vocabulary & Prefixes
centi + meter = centimeter one hundredth of a meter 1/100 One inch is about 2.5 centimeters.
cent + ury = century one hundred years The 20th century was from 1900 to 1999.
deci + liter = deciliter one tenth of a liter  1/10 I gave about a deciliter of blood today.  
deci + meter = decimeter one tenth of a meter  The pencil was about a decimeter long.
kilo + meter = kilometer one thousand meters It is about 2 kilometers to school!  
kilo + gram = kilogram one thousand grams I way about 100 kilograms.
mega + byte = megabyte one million pieces of computer information The computer only had a 2 megabyte hard drive.  
mega + star = megastar a very famous or big star Charlie Chaplin and Sean Connery are both megastars!
micro + wave = microwave tiny invisible waves that cook food I cooked dinner in the microwave.  
micro + scope = microscope an instrument used to look at very small things The scientist looked at the cell in a microscope.
milli + meter = millimeter one thousandth of a meter The carpenter measured to the nearest millimeter.  
milli + gram = milligram one thousandth of a gram I need 5 milligrams of aspirin.