Lesson 24: Word Roots

​Lesson 24 Word Roots

By Tiana Vick

Prefix: a small word before the root

PREFIX

ex- out, away, from

im- in, into, not

peri- around, surrounding

Root: a basic word that carries the fundamental meaning

ROOT

meter to measure

ped/pede/pedo foot

veloc/veloci swift

thermo heat

Suffix: a morpheme added to the end of a word to form a derivation

SUFFIX

-al like, related to, an action or process

dl-er one who, that which

-ite related to, having the quality of

-ity state, quality, act

Match

Match the following

• ex-

• im-

• peri-

• -ite

• -ity

out, away, from

in, into; not

around, surrounding

related to

state, quality, act

• out, away, from

• in, into; not

• around, surrounding

• related to

• state, quality, act

Match

Match the following

• meter

• ped/pede/pedo

• veloc/veloci

• thermo

to measure

foot

swift

heat

• to measure

• foot

• swift

• heat

Categorize

Options (12)

barometer

centimeter

diameter

biped

pedal

millipede

velocity

velociraptor

hypervelocity

thermos

thermosphere

hypothermia

Organize these options into the right root word categories

meter

ped

veloc

therm