TWGHs CHEN ZAO MEN COLLEGE
S1 Vocabulary(Water purification and dissolving)
Sound File: http://www.twghczm.edu.hk/subject/is/vocabulary/F1/sound/Water.wav
Vo c a b u l a r y
Impurities
natural water
muddy
soluble
insoluble
Mineral salts
purify
sedimentation
sediment
suspending
alum
filtration
filter funnel
S yl l a ble
Meaning
When something is impure or a substance that is impure
im/pu/ri/ties
Wa t e r c o m e s f r o m s t r e a m , r i v e r s o r p o n d s
na/tural wa/ter
Covered by or containing mud
mud/dy
If a substance is soluble, it will dissolve in water
sol/u/ble
A substance cannot dissolve in water
in/sol/u/ble
mi/cro-or/ga/nis A living thing which is too small to be seen without a microscope
ms
A useful chemical substance which is formed naturally in the ground
mi/ne/ral salts
To r e m o v e b a d s u b s t a n c e s f r o m s o m e t h i n g t o m a k e i t p u r e
pu/ri/fy
s e / d i / m e n / t a / t i o n Ts ehtet l pe r ao tc et hs se obfo tatlol mo w i n g w a t e r t o s t a n d s o t h a t t h e i n s o l u b l e i m p u r i t i e s
solid material which have fallen to the bottom of a liquid
se/di/ment
Liquid containing tiny particles of solid matter floating in it
sus/pen/ding
A chemical helps stick some of the fine suspended solids together to
a/lum
form large particles
A method to remove most solid impurities from water by using a filter
fil/tra/tion
A funnel which is used to pass a liquid or gas through in order to remove
fil/ter fun/nel
solid pieces or other substances
filter column
fil/ter co/lumn
filtrate
fil/trate
micro-organisms
The liquid which passes through the filter
residue
re/si/due
distillation
dis/til/la/tion
condenser
distilled water
distillate
chlorine
ozone
ultra- violet
light
fluoride
evaporation
condensation
humidity
solute
solvent
solution
saturated
con/den/ser
dis/tilled wa/ter
dis/til/late
chlo/rine
o/zone
ul/tra- vio/let
light
fluo/ride
e/va/po/ra/tion
con/den/sa/tion
hu/mi/di/ty
so/lute
sol/vent
so/lu/tion
sa/tu/ra/ted
crystals
cry/stals
crystallization
cry/stal/li/za/tio
n
con/serve
se/wage
conserve
sewage
Something that remains after most of a substance has gone or been
removed
By boiling water to steam and then allowing the steam to cool down t o
become liquid water
A piece of equipment that changes gases to their liquid form
The pure water obtained from distillation
The liquid collected in distillation
A gas with a strong smell, used to make water safe to drink and swim in
A form of oxygen that has a powerful smell
Ultraviolet light makes your skin become darker
A chemical that can strengthen the enamel of our teeth
The sun heats up the water and evaporates to become water vapour
Wa t e r v a p o u r c o o l s d o w n a n d c o n d e n s e s t o s m a l l w a t e r d r o p l e t s
A measurement of how much water there is in the air
A substance that has been dissolved in another substance
A liquid which is used to dissolve other substances
A liquid which a substance has been dissolved into
To p u t a s m u c h o f a s u b s t a n c e t h a t d i s s o l v e s i n t o a s o l u t i o n a s i s
possible
The formation of crystals in a solution
To u s e s o m e t h i n g i n a w a y t h a t d o e s n o t w a s t e i t
Wa s t e w a t e r a n d w a s t e f r o m t o i l e t s