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Know Your Roots: 'hydro'

In this worksheet, students learn and practise spelling words containing the root 'hydro'.

'Know Your Roots: 'hydro'' worksheet

Key stage:  KS 2

Curriculum topic:  Reading: Word Reading

Curriculum subtopic:  Root Word Awareness

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

Many words in English are based on the same root words, and knowing what these mean can help us with spellings.

a hand under running water

The root word 'hydro' (sometimes spelt 'hydra') comes from the Greek word for water, and it forms part of a lot of words in English.

for example:

The gas that combines with oxygen to make water is called hydrogen.

 

Someone who feels unwell because they haven't drunk enough water is said to be dehydrated.

Match these words with their definitions. You may need to use a dictionary if you don't know what they mean.

 

Pay close attention to the spellings as you will need them in later questions!

Column A

Column B

Hydrofoil
Being frightened of water
Hydroelectricity
A boat with fins that raise it out of the water an...
Hydrophobic
Electricity that is produced by the power of water

Match these words with their definitions. You may need to use a dictionary if you don't know what they mean.

 

Pay close attention to the spellings as you will need them in later questions!

Column A

Column B

Hydrotherapy
An upright water pipe with a nozzle for attaching ...
Hydraulic
Using exercise in a swimming pool to help people r...
Hydrant
Something that is powered by the movement and pres...

Write the missing word to complete the sentence. Think carefully about the spellings!

 

The firefighters connected their hose to the __________ and then aimed it at the burning shed.

Write the missing word to complete the sentence. Think carefully about the spellings!

 

We traveled to the island by __________. It was much quicker than an ordinary boat.

Write the missing word to complete the sentence. Think carefully about the spellings!

 

It is better for the environment to make power using __________ rather than coal or gas because water is a renewable resource.

Write the missing word to complete the sentence. Think carefully about the spellings!

 

I love swimming but my sister is __________ and won't go near water.

Write the missing word to complete the sentence. Think carefully about the spellings!

 

You really must drink more water in this hot weather or you will become __________.

Write the missing word to complete the sentence. Think carefully about the spellings!

 

A water molecule is made up of two parts __________ to one part oxygen.

Write the missing word to complete the sentence. Think carefully about the spellings!

 

This is a __________ digger. It is powered by the movement of liquids.

Write the missing word to complete the sentence. Think carefully about the spellings!

 

My auntie has arthritis but she feels better now she is having __________ at our local swimming pool.

  • Question 1

Match these words with their definitions. You may need to use a dictionary if you don't know what they mean.

 

Pay close attention to the spellings as you will need them in later questions!

CORRECT ANSWER

Column A

Column B

Hydrofoil
A boat with fins that raise it ou...
Hydroelectricity
Electricity that is produced by t...
Hydrophobic
Being frightened of water
EDDIE SAYS
A great start! Remember all the words are linked to water. Try to remember the meanings of each word as they will come in handy later in the worksheet.
  • Question 2

Match these words with their definitions. You may need to use a dictionary if you don't know what they mean.

 

Pay close attention to the spellings as you will need them in later questions!

CORRECT ANSWER

Column A

Column B

Hydrotherapy
Using exercise in a swimming pool...
Hydraulic
Something that is powered by the ...
Hydrant
An upright water pipe with a nozz...
EDDIE SAYS
Great work! Remember the meanings and spelling of each word. You can always use a dictionary to look up any meanings you are unsure of.
  • Question 3

Write the missing word to complete the sentence. Think carefully about the spellings!

 

The firefighters connected their hose to the __________ and then aimed it at the burning shed.

CORRECT ANSWER
hydrant
EDDIE SAYS
Super effort! Did you remember the meaning? Try to think about each word you have read and then think which would best fit into the sentence.
  • Question 4

Write the missing word to complete the sentence. Think carefully about the spellings!

 

We traveled to the island by __________. It was much quicker than an ordinary boat.

CORRECT ANSWER
hydrofoil
EDDIE SAYS
'Hydrofoil' is a type of boat. Remember all words with 'hydro' link to water.
  • Question 5

Write the missing word to complete the sentence. Think carefully about the spellings!

 

It is better for the environment to make power using __________ rather than coal or gas because water is a renewable resource.

CORRECT ANSWER
hydroelectricity
EDDIE SAYS
Are you starting to get the hang of this now? 'Hydroelectricity' is power that is produced from water. Keep up the super effort!
  • Question 6

Write the missing word to complete the sentence. Think carefully about the spellings!

 

I love swimming but my sister is __________ and won't go near water.

CORRECT ANSWER
hydrophobic
EDDIE SAYS
'Hydrophobic' is when someone has a fear of water. You've got this!
  • Question 7

Write the missing word to complete the sentence. Think carefully about the spellings!

 

You really must drink more water in this hot weather or you will become __________.

CORRECT ANSWER
dehydrated
EDDIE SAYS
Keep going! 'Dehydrated' is when someone has not drunk enough water.
  • Question 8

Write the missing word to complete the sentence. Think carefully about the spellings!

 

A water molecule is made up of two parts __________ to one part oxygen.

CORRECT ANSWER
hydrogen
EDDIE SAYS
High five! Your nearly there! 'Hydrogen' is a type of odourless and colourless gas.
  • Question 9

Write the missing word to complete the sentence. Think carefully about the spellings!

 

This is a __________ digger. It is powered by the movement of liquids.

CORRECT ANSWER
hydraulic
EDDIE SAYS
Have you got the hang of this now? Remember to use a dictionary if you are unsure of any meanings.
  • Question 10

Write the missing word to complete the sentence. Think carefully about the spellings!

 

My auntie has arthritis but she feels better now she is having __________ at our local swimming pool.

CORRECT ANSWER
hydrotherapy
EDDIE SAYS
Amazing effort! Well done!
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