What does chlorine mean?
Word: Chlorine
Part of Speech: Noun
Meaning: Chlorine means a greenish-yellow gas with a sharp smell, a chemical element used to keep drinking water and swimming pools clean.
How do you spell chlorine?
Syllables: chlo - rine
Tricky part: The end is said like seen but the spelling is ine, which is why pupils write chloreen. Machine and marine finish in the same way.
Watch out for: chloreen, chlorene
Memory tip: Learn it with its chemical family, fluorine and bromine and iodine. Each one of these elements ends in the same three letters.
Chlorine in a sentence
Example 1: The water in our school pool smells faintly of chlorine.
Example 2: Chlorine is added to the town's supply to keep the water safe to drink.
Example 3: Our science teacher wrote the symbol for chlorine, Cl, on the board.
Fun Fact
The chemist Humphry Davy gave the gas its name in 1810, taking it from a Greek word for pale green, the colour of the gas.
Practise the CREST Way
Word Cookie
Fill in the missing letters to complete the word:
c_l_rine
a) h, u
b) h, a
c) k, o
d) h, o
Show answer
d) h, o. An h follows the c, as in chorus, and the vowel after the l is the o of more.
Word Cookie
Find the extra letter in the word:
chlorrine
a) r
b) h
c) l
d) o
Show answer
a) r. This element has one r only.
Mingle-Mangle
Unjumble the word in the sentence and choose it:
The science video showed the pale green colour of einorhlc in a sealed glass jar.
a) calorie
b) clothing
c) chlorine
d) clarinet
Show answer
c) chlorine. An h, an o and an r are all here; the eight letters allow just one word.
Spell-o-Spell
Read the four words. Choose the meaning of the only correctly spelt word:
1. sulpher 2. magnisium 3. chlorine 4. potasium
a) a yellow solid that smells bad when it burns
b) a light silvery metal that burns with a bright flame
c) a gas that helps to purify water
d) a soft silvery metal that reacts strongly with water
Show answer
c) a gas that helps to purify water. Potassium has a double s, magnesium an e after the n, and sulphur ends in ur.
Multiple Choice Questions
1. Which everyday substance has this element as one of its two elements?
a) lemon juice
b) white sugar
c) table salt
d) pure chalk
Show answer
c) table salt
2. Which group of the periodic table does it belong to?
a) the alkali metals
b) the rare earth metals
c) the noble gases
d) the halogens
Show answer
d) the halogens
