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WorksheetsQ and A Worksheet of MATTER
Total questions: 45
Worksheet time: 27mins
If someone sprays perfume in front of the class, why is it that we can smell it even from the back?
because gas has NO definite shape but takes the container's shape
because gas has low density
because gas has NO definite volume
because gas can diffuse easily
Why do you feel cool when you sweat?
because the sweat takes energy from your skin to escape through evaporation
because sweat releases energy to your skin that cools you down when it escapes through evaporation
because sweat takes up energy from the surrounding air causing your skin to loose energy
all of the choices
Why does your drink get cold when you put ice on them?
because the ice takes up energy from your drink causing them to get colder
because the ice takes up energy from the surrounding air causing your ice to melt
because the ice needs energy to melt causing it to release energy to your drink
none of the choices
This is an example of a
Atom
Solid
Crystal
Salt
The ice cubes in a freezer are melting. Which change most likely is causing the ice cubes to melt?
a decrease in the mass of the ice cubes
an increase in the mass of the ice cubes
an increase in the temperature inside the freezer
a decrease in the temperature inside the freezer
What is the most abundant element in the human body, earth’s crust and oceans?
Nitrogen
Oxygen
Silicon
Hydrogen
Which of the following gases does not trap heat?
A. Carbon dioxide
B. Nitrogen
C. Water vapor
D. Methane
Why are too many greenhouse gases bad for the environment?
They cause trees to die.
They release heat and will be the cause of the next ice age.
They trap heat in our atmosphere causing the planet to warm up.
They are fossil fuels which pollute our environment.
what is churned to separate butter?
water and oil
curdled milk
milk and curds
flour and milk
what is the method of separating components from a mixture by blowing?
handpicking
threshing
winnowing
washing
Where is grain separated from?
Stalks
Wheat
Rice
Atta
When is the solution saturated?
No more salt can be dissolved in the amount of water we have taken
Lot more salt can be added
You have to add some sugar into the solution
None of the above
What is a mixture?
A chemical combination of two or more different substances.
A physical combination of two or more different substances.
A chemically pure substance.
A special type of solution
The process of settling down of particles of a solid in a liquid is
Sublimation
Sedimentation
Filtration
Decantation
While preparing chapatis, Paheli found that the flour to be used was mixed with wheat grains. Which out of the following is the most suitable method to separate the grains from the flour?
Threshing
Sieving
Winnowing
Filtration
Sand and gravel may be separated from each other through using..
a filter funnel
a sieve
an evaporating basin
a distillation
This type of paper allows liquid to pass through it. What tool is it?
sieve
filter
A solution of salt and water was put over heat. What will happen next?
The salt will evaporate
the salt and water evaporate
the water will evaporate
Which of these materials are attracted to a magnet
iron filings
sand
rocks
wood
Different fractions of crude oil can be separated using fractional distillation as the liquids separate due to
difference in their masses
difference in their sizes
the difference in their colors
the difference in their boiling points
What is the below picture depict
Evaporation and condensation
Filtration and Evaporation
Decantation and condensation
None of these
Paheli bought some vegetables such as french beans, lady's finger, green chilies, and potatoes all in a mixed bag. Which of the following methods of separation would be most appropriate for her to separate?
Winnowing
Sieving
Threshing
Handpicking
(i) A mixture of sand and salt is partly soluble in water.
(ii) The process of threshing is used to separate grains from stalks.
Statement (i) is correct while statement (ii) is incorrect.
Statement (ii) is correct while statement (i) is incorrect.
Both statements are correct.
Both statements are incorrect.
If muddy water taken from a pond is allowed tost and undisturbed for some time we find that the dirt particles present in muddy water get settled at the bottom of the container. This process will be called
Sedimentation
Filtration
Decantation
Nitration
Which can be separated using Magnetism?
Which of the following mixtures can be separated by Evaporation?
Which of the following mixtures can be separated using Decantation?
Which Mixtures can be separated using Sieving?
What ancient technique of separating of mixtures is shown in the picture?
Threshing
Winnowing
Evaporation
Distillation
Diagram show an example of _____________
viscosity
vaporisation
surface tension
evaporation
The process represent by the picture is ______________
sublimation
evaporation
condensation
deposition
Which of the following is the most viscose
water
cooking oil
honey
coffee
