Online Test — Materials Around Us
15 Questions • 15 min • Chapter MCQ
15:00
Question 1 of 15
The substance an object is made of is called its:
Material
Shape
Weight
Colour
Explanation: The substance an object is made of is its material.
Question 2 of 15
A feature that describes how a material looks or behaves is its:
Price
Property
Name
Owner
Explanation: Properties describe how a material looks and behaves.
Question 3 of 15
Materials that shine are said to be:
Dull
Lustrous (shiny)
Soft
Soluble
Explanation: Shiny materials, like metals, are lustrous.
Question 4 of 15
Which of these is the hardest material?
Chalk
Cotton
Diamond
Clay
Explanation: Diamond is the hardest known natural material.
Question 5 of 15
A material that dissolves in water is said to be:
Insoluble
Soluble
Opaque
Hard
Explanation: Soluble materials dissolve in water.
Question 6 of 15
Which of these is insoluble in water?
Salt
Sugar
Sand
Glucose
Explanation: Sand does not dissolve in water; it is insoluble.
Question 7 of 15
Oil and water do not mix. Such liquids are called:
Miscible
Immiscible
Soluble
Transparent
Explanation: Liquids that do not mix are immiscible.
Question 8 of 15
Clear glass that you can see through is:
Opaque
Translucent
Transparent
Dull
Explanation: Transparent materials let almost all light pass and you can see clearly.
Question 9 of 15
Butter paper, through which images look blurred, is:
Transparent
Translucent
Opaque
Soluble
Explanation: Translucent materials let only some light through, blurring images.
Question 10 of 15
Through which material can NO light pass?
Air
Clear glass
Water
Wood
Explanation: Wood is opaque; no light passes through it.
Question 11 of 15
Which is most likely to float on water?
Iron nail
Stone
Dry wooden block
Coin
Explanation: A dry wooden block floats; the dense metal and stone objects sink.
Question 12 of 15
Grouping materials that share a property is called:
Classification
Evaporation
Reflection
Condensation
Explanation: Grouping by a shared property is classification.
Question 13 of 15
We classify materials mainly to:
Make them disappear
Find, study and choose them easily
Make them shiny
Increase their weight
Explanation: Classification organises materials so they are easier to use.
Question 14 of 15
Glass can be in the 'hard' group and the 'transparent' group. This shows a material can:
Have no properties
Belong to different groups by different properties
Only be in one group
Never be classified
Explanation: The group depends on the property chosen, so one material can be in several groups.
Question 15 of 15
Windows are made of transparent glass mainly because it:
Is soft
Lets light into the room
Is opaque
Dissolves in water
Explanation: Transparent glass lets daylight into the room.