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WorksheetsScience 6 - Mixtures Quiz
Total questions: 20
Worksheet time: 10mins
Which statement describes a colloid? The mixture is a colloid when_______________.
solute is mixed with a solvent; the mixture becomes cloudy
salt is mixed with water; the mixture becomes a clear liquid
solvent is mixed with a solute; the mixture forms another material
soil is mixed with water; sand and small stones settle at the bottom
What makes suspension different from a colloid and a solution? In a suspension, the solutes______________.
float at the top
float in a solvent
settle at the bottom
dissolve in a solvent
In the solution, what happens to the solute when mixed with the solvent?
It forms another substance.
It sinks at the bottom of the mixture.
It floats and spread evenly in a solvent.
It dissolves and spread evenly in a solvent.
In the three mixtures above, which shows even distribution of solutes dissolving in the solvent?
colloid
solution
suspension
None of the above.
In a salt solution, what is the solute?
glass
salt
solvent
water
Which of these materials dissolve in vinegar?
corn paper
mongo seeds
palay grains
salt
Why is water called a universal solvent? Water is a universal solvent because it__________________.
is found anywhere on Earth
flows well than any other liquid
changes into solid, liquid and gas
dissolves more solutes than any liquid
Which solid material dissolves fast in water?
cornstarch
powdered juice
detergent soap
soil
What does stirring do to instant powder juice when mixed with cold water?
It allows the particles of juice to sink.
It moves the cold water towards the juice.
It allows the solid particles to float in water.
It causes the juice to spread fast and get in contact with water.
In the solution below, what is the solvent?
glass
salt
spoon
water
Uniform mixture means that every part of the material is ____________________
different
the same
translucent
transparent
Which of the statement is true about mixtures? Mixtures _____________________.
change in state
can be separated easily
formed new substances when separated
behave differently when separated from other substances
Which of the following substances are insoluble in water?
salt
stone
sugar
vinegar
What are immiscible liquids? Immiscible liquids are liquids that _______________.
mix to form a mixture
do not mix to form a mixture
have more solvent and less solute
have less solvent and more solute
When can we say that liquids are miscible? Liquids are miscible when they _____.
form layers
settle to the bottom
dissolve each other and form a homogeneous mixture
dissolve each other and form a heterogeneous mixture
Which statement describes the process of sifting? It is a way of separating _____.
rice straw from grains
husk from wheat grains
lumps from flour and cornstarch
smaller particles of sand and gravel
Sodium chloride can be separated from rock salt by first adding water to the mixture to dissolve the sodium chloride. Then separation takes place in two stages. Which stage is correctly followed?
filtration followed by evaporation
evaporation followed by filtration
Filtration followed by decanting
Distillation followed by decanting
Which of the following techniques would best be used to separate soil from water?
decantation
filtration
sieving
Using magnet
What separation technique is shown in the diagram?
decanting
distillation
evaporation
winnowing
In diagram A and B, which shows sieving?
Diagram A
Diagram B
Diagram C
Both diagrams A and B
