1. Making Measurements

2. International System of Measurement (SI)
Based on multiples of TEN
A universal system of measurement

3. Common Prefixes in Biology
Symbol
Meaning
kilo K
1,000
hecto H
100
deka Da 10
deci D
1/10
centi C
1/100
milli m
1/1000

5. Mass
Amount of matter in an object
Unit= grams (g)
Tool- balance

6. Length Distance between two points unit= meter (m)
Tool= ruler, meter stick

7. Volume Amount of space an object occupies
Solid unit- cubic meters (m3)
Liquid/gas unit= Liter (L)
Tool- graduated cylinder or meterstick

8. Temperature Amount of heat in an object unit= celcius (C)
Tool- thermometer