1. All SI units have a base unit:
metric unit
abbreviation
meter
liter
gram
degree Celsius
second
m L g oC s

2. SI units may have a prefix:
prefix : represents:
abbreviation:
kilo- 1,000
hecto
deca- 10
deci- 1/10
centi- 1/100
milli- 1/1000
k h da d c m

3. The metric system is a system of measurement based on the number 10.
Scientists use a version of the metric system called the International System of Units (SI units), which are a set of standard units that are universal.
measurement
unit
length
mm, cm, m, km
liquid volume
mL, L
volume (LXWXH)
mm3 or cm3
mass
mg, g, kg
density g mL g cm OR 3

4. Infer: what are the Answers: SI units:km L mm dg m
daL hg cg kL g
kilometer
liter
millimeter
decigram
meter
decaliter
hectogram
centigram
kiloliter
gram