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Revise Root Words: Adding Prefixes 1

In this worksheet, students choose prefixes to generate new words.

'Revise Root Words: Adding Prefixes 1' worksheet

Key stage:  KS 2

Curriculum topic:   Reading: Word Reading

Curriculum subtopic:   Root Word Awareness

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

 

A prefix is a letter or group of letters added to the beginning of a word. Knowing what a prefix means can help us to understand new words.

 

Some prefixes are easy to recognise. For example, un- changes a word into its opposite.

lucky / unlucky

 

Prefixes change words in lots of other ways, too, and in this activity you can practise using a wide range of them to make new words.

 

You may find a dictionary helpful if you don't know some of the words.

Dictionary

 

The prefix pre- means 'before'.

 

Look at the list of words beginning with pre- and match them with their definitions.

Column A

Column B

prefix
a showing of a film or play before it opens to the...
prepare
a letter or group of letters added to the beginnin...
prejudge
to make up your mind about something before you kn...
preview
the time before a war
pre-war
to get ready for something before it happens

The prefix bi- means 'two'.

 

Look at the list of words beginning with bi- and match them with their definitions.

Column A

Column B

bikini
being able to speak two languages
biplane
a vehicle with pedals and two wheels
bicycle
a swimming costume in two parts
bilingual
an aeroplane with two sets of wings

The prefix sub- means 'under'.

 

Look at the list of words beginning with sub- and match them with their definitions.

Column A

Column B

subway
the part of the earth directly underneath the soil
submerge
to put something under water
submarine
a ship that can travel under water
subsoil
a tunnel underneath a road for people to walk thro...

The prefix inter- means 'between'.

 

Look at the list of words beginning with inter- and match them with their definitions.

Column A

Column B

international
the time between the two parts of a play or sporti...
interval
something happening between two countries or natio...
intercom
a conversation between two or more people, usually...
interview
a system that allows people to communicate with ea...

The prefix anti- means 'against'.

 

Look at the list of words beginning with anti- and match them with their definitions.

Column A

Column B

antifreeze
behaving in a way that people don't normally behav...
anti-clockwise
a cream that stops a wound from becoming infected
antiseptic
a product used to stop car engines freezing in win...
antisocial
the opposite direction from the hands of a clock

Use one of the prefixes from the first five questions to the word historic to make a new word that means 'the time before people starting recording history'.

 

Write the new word in the answer box.

Use one of the prefixes from the first five questions to the word annual to make a new word that means 'something that happens twice a year'.

 

Write the new word in the answer box.

Use one of the prefixes from the first five questions to the word soak to make a new word that means 'soak something before using it'.

 

Write the new word in the answer box.

Use one of the prefixes from the first five questions to the word asthma to make a new word that means 'medicine used to treat asthma'.

 

Write the new word in the answer box.

Use one of the prefixes from the first five questions to the word locked to make a new word that means 'joined together closely'.

 

Write the new word in the answer box.

  • Question 1

The prefix pre- means 'before'.

 

Look at the list of words beginning with pre- and match them with their definitions.

CORRECT ANSWER

Column A

Column B

prefix
a letter or group of letters adde...
prepare
to get ready for something before...
prejudge
to make up your mind about someth...
preview
a showing of a film or play befor...
pre-war
the time before a war
EDDIE SAYS
How did you do? It makes it easier once you have remembered that the prefix pre- means 'before'.
  • Question 2

The prefix bi- means 'two'.

 

Look at the list of words beginning with bi- and match them with their definitions.

CORRECT ANSWER

Column A

Column B

bikini
a swimming costume in two parts
biplane
an aeroplane with two sets of win...
bicycle
a vehicle with pedals and two whe...
bilingual
being able to speak two languages
EDDIE SAYS
How fantastic to be bilingual and able to speak in two different languages! Just remember that the prefix bi- means 'two'.
  • Question 3

The prefix sub- means 'under'.

 

Look at the list of words beginning with sub- and match them with their definitions.

CORRECT ANSWER

Column A

Column B

subway
a tunnel underneath a road for pe...
submerge
to put something under water
submarine
a ship that can travel under wate...
subsoil
the part of the earth directly un...
EDDIE SAYS
Would you like to travel in a submarine? Imagine the things you could see! Just remember that the prefix sub- means 'under'.
  • Question 4

The prefix inter- means 'between'.

 

Look at the list of words beginning with inter- and match them with their definitions.

CORRECT ANSWER

Column A

Column B

international
something happening between two c...
interval
the time between the two parts of...
intercom
a system that allows people to co...
interview
a conversation between two or mor...
EDDIE SAYS
The interval during a play or film is so busy, everyone rushing around for more drinks and snacks! You're doing a great job so far. Just remember that the prefix inter- means 'between'.
  • Question 5

The prefix anti- means 'against'.

 

Look at the list of words beginning with anti- and match them with their definitions.

CORRECT ANSWER

Column A

Column B

antifreeze
a product used to stop car engine...
anti-clockwise
the opposite direction from the h...
antiseptic
a cream that stops a wound from b...
antisocial
behaving in a way that people don...
EDDIE SAYS
It will help you to remember that the prefix anti- means 'against'. Keep up the hard work!
  • Question 6

Use one of the prefixes from the first five questions to the word historic to make a new word that means 'the time before people starting recording history'.

 

Write the new word in the answer box.

CORRECT ANSWER
Prehistoric
EDDIE SAYS
Prehistoric times were before human civilization developed and started recording events.
  • Question 7

Use one of the prefixes from the first five questions to the word annual to make a new word that means 'something that happens twice a year'.

 

Write the new word in the answer box.

CORRECT ANSWER
Biannual
EDDIE SAYS
I wonder which event may occur biannually?
  • Question 8

Use one of the prefixes from the first five questions to the word soak to make a new word that means 'soak something before using it'.

 

Write the new word in the answer box.

CORRECT ANSWER
Presoak
Pre-soak
EDDIE SAYS
We had to pre-soak the baby clothes, they were covered in food stains! This word can be spelt with or without a hyphen.
  • Question 9

Use one of the prefixes from the first five questions to the word asthma to make a new word that means 'medicine used to treat asthma'.

 

Write the new word in the answer box.

CORRECT ANSWER
Anti-asthma
Antiasthma
EDDIE SAYS
This word is usually spelt with a hyphen because the two vowels look strange together otherwise.
  • Question 10

Use one of the prefixes from the first five questions to the word locked to make a new word that means 'joined together closely'.

 

Write the new word in the answer box.

CORRECT ANSWER
Interlocked
EDDIE SAYS
The floor tiles were interlocked to make them strong and durable.
---- OR ----

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