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WorksheetsMatter
Total questions: 27
Worksheet time: 21mins
Matter is made up tiny particles called molecules. Molecules can be divided further into
(a)
Which of the below is a physical change?
Burning of wood
Rusting of iron
Photosynthesis
Melting of ice
This separation technique is called
(a)
The process of removing tea leaves from tea using a strainer is known as
These two liquids are
(a)
When you tear a sheet of paper into smaller pieces, what type of change is occurring?
physical and chemical change
If you have a mixture of sand and water, what is the most effective method to separate the sand from the water?
Heating the mixture until the water evaporates.
Stirring the mixture vigorously until the sand dissolves.
Filtering the mixture through a sieve or filter paper.
Adding more water to dilute the mixture.
When you open a can of soda (carbonated drink), you often see bubbles forming on the surface of the liquid. What is the main reason for this?
The liquid in the can is getting warmer.
The gas dissolved in the liquid is escaping.
The can is being shaken
The liquid in the can is evaporating.
Why is water is known as a universal solvent?
Solubility is the ability of a solvent to dissolve in a solute.
true
false
solute + solvent =
solution
equation
If I dissolve carbon dioxide in water, what is the solvent?
Carbon Dioxide
There is no solvent
Oxygen
Water
Which one of the following is the name for separation technique shown in the picture below?
Decantation
Evaporation
Sedimentation
The process of particles settling to the bottom of a body of water is called_____.
Sedimentation
Decantation
Filtration
Filtration is used to separate:
Soluble salts from water
Soluble substances from a milk
Insoluble substances from water
Separation of iron fillings from sand can be done by a use of_____.
funnel
filter
magnet
sieve
What happens when air becomes light?
It settles down
It remains where it is
It starts rising
it moves in any direction
What happens during sea breeze?
The cooler air that moves from the sea towards the land during night time
The warmer air that moves from the sea towards the land during daytime
The cooler air that moves from the sea towards the land during daytime
The cooler air that moves from the land towards the sea during daytime
Mark the things used to remove foul air/hot air out of the closed room.
Terrace
Ventilators
Exhaust fans
Doors
When does land breeze occur?
Night time
Day time
