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WorksheetsMixtures
Total questions: 26
Worksheet time: 11mins
Dyes in water soluble markers may be separated by means of
Simple distillation
Crystallisation
Chromatography
Filtration
The droplets of water that appear on the outside of a glass of cold water on a warm day are an example of?
sublimation
condensation
evaporation
sedimentation
It is a technique in which an insoluble solid is separated from a liquid.
Filtration
Sieving
Decantation
Use of Magnets
It involves separating a mixture based on different sizes of components.
Decantation
Sieving
Use of Magnets
Filtration
Method of separating colors from the mixture
Chromatography
Crystallization
Decantation
Filtration
Method to remove impurities from water
Crystallization
Distillation
Both
None
Stones are separated by
Winnowing
Handpicking
Crystallization
Chromatography
THOSE SUBSTANCES WHICH CONTAIN ONLY __________ OF CONSTITUENTS PARTICLES, MOLECULES AND COMPOUNDS ARE CALLED PURE SUBSTANCE.
ONE KIND
PURE SUBSTANCE
HOMOGENEOUS MIXTURE
HETEROGENEOUS MIXTURE
Impurities are the _____________ present in a substance making impure.
Pure substance
Mixture
unwanted particles
Homogeneous mixture
______________ substances containing more than one type of constituents particles.
Pure substance
Mixtrues
Particles
Impure substances
Mixture which contains more than one component mixed in
any ratio
Impure substances
Pure substance
Heterogeneous mixture
When a substance is dissolve completely in a liquid ( sugar in water). A homogeneous mixture is formed, it is known as __________.
Solution
Homogeneous
Heterogeneous
Impure substance
Method '' Hand picking '' can be used for
Separating larger impurities from grains like stones etc.
Separating smaller impurities
Separating water
Separating food
_____ filter has very fine pores in it ?
Paper filter
Plastic filter
Wood filter
stone filter
Which of the following mixtures use filter cloth to separate solid from a liquid extract?
flour with stones
baby powder with pebbles
powder chalk with seeds
milk from grated coconut
Which of these examples show evaporation process as technique of separating mixtures?
drying of water on the table
flooding of water in the river
cooling of water in the refrigerator
freezing of water in the ocean
Which of the following methods is BEST used in separating a solid from a liquid?
winnowing, decanting, evaporating
decanting, filtering, evaporating
evaporating, dissolving, sieving
filtering, sieving, decanting
Which one of the following separation techniques will you use in order to obtain the solute from the solution?
_______________ is the combination of two or more different materials.
solution
mixture
filteration
evaporation
Salt is dissolved in water. How can you separate the salt from water?
add more salt
filter the water
dispose the water
boil the water and let it evaporate
What is a mixture?
elements chemically combined
a combination of different substances
composed of one atom only
it is made of chemical
The air around is a mixture of gases.
True
False
This is a mixture of two or more substances in which one or more of these substances (solutes) is dissolved in another substance.
compound
element
solution
heterogeneous mixture
Why is water known as universal solvent?
It is found anywhere.
It gives life to living things.
It covers the greater part of the earth.
It dissolves almost all the substances on Earth.
