Vidaara.orgClass 6 · Mathematics
CodeVID-M6-WS
Materials Around Us — Practice Worksheet
Name: ____________________
Roll No.: __________
Date: ____________
General Instructions
- All questions are compulsory.
- Choose the correct option (A, B, C or D) for each question.
- The answer key is at the end — try the paper first!
Section A — Multiple Choice (1 mark each)
15 × 1 = 15 marks
1.
The substance an object is made of is called its:
- A.Material
- B.Shape
- C.Weight
- D.Colour
2.
A feature that describes how a material looks or behaves is its:
- A.Price
- B.Property
- C.Name
- D.Owner
3.
Materials that shine are said to be:
- A.Dull
- B.Lustrous (shiny)
- C.Soft
- D.Soluble
4.
Which of these is the hardest material?
- A.Chalk
- B.Cotton
- C.Diamond
- D.Clay
5.
A material that dissolves in water is said to be:
- A.Insoluble
- B.Soluble
- C.Opaque
- D.Hard
6.
Which of these is insoluble in water?
- A.Salt
- B.Sugar
- C.Sand
- D.Glucose
7.
Oil and water do not mix. Such liquids are called:
- A.Miscible
- B.Immiscible
- C.Soluble
- D.Transparent
8.
Clear glass that you can see through is:
- A.Opaque
- B.Translucent
- C.Transparent
- D.Dull
9.
Butter paper, through which images look blurred, is:
- A.Transparent
- B.Translucent
- C.Opaque
- D.Soluble
10.
Through which material can NO light pass?
- A.Air
- B.Clear glass
- C.Water
- D.Wood
11.
Which is most likely to float on water?
- A.Iron nail
- B.Stone
- C.Dry wooden block
- D.Coin
12.
Grouping materials that share a property is called:
- A.Classification
- B.Evaporation
- C.Reflection
- D.Condensation
13.
We classify materials mainly to:
- A.Make them disappear
- B.Find, study and choose them easily
- C.Make them shiny
- D.Increase their weight
14.
Glass can be in the 'hard' group and the 'transparent' group. This shows a material can:
- A.Have no properties
- B.Belong to different groups by different properties
- C.Only be in one group
- D.Never be classified
15.
Windows are made of transparent glass mainly because it:
- A.Is soft
- B.Lets light into the room
- C.Is opaque
- D.Dissolves in water
Section B — Challenge / Olympiad (2 marks each)
6 × 2 = 12 marks
16.
A spoonful of sugar is stirred into water until it disappears. The sugar has:
- A.Vanished forever
- B.Dissolved and is still present in the water
- C.Turned into water
- D.Become insoluble
17.
Two materials are tested: X lets you read print through it clearly, Y blurs the print but still lets light through. Then:
- A.X is transparent, Y is translucent
- B.X is opaque, Y is transparent
- C.Both are opaque
- D.X is translucent, Y is transparent
18.
A material is shiny, hard and opaque, and sinks in water. It is most likely a:
- A.Piece of cotton
- B.Metal
- C.Sheet of glass
- D.Dry leaf
19.
Why can the SAME material appear in more than one group when we classify?
- A.Because materials keep changing
- B.Because the group depends on which property we choose
- C.Because classification is wrong
- D.Because all materials are the same
20.
You must lift only the iron objects out of a mixture of iron nails, sugar and sand. The quickest way is to:
- A.Add water
- B.Use a magnet
- C.Heat the mixture
- D.Shine light on it
21.
A ball of clay sinks, but the same clay shaped like a bowl floats. This shows that floating depends on:
- A.Only the colour
- B.The shape as well as the material
- C.Only the weight
- D.Nothing at all
Answer Key
Section A — Multiple Choice (1 mark each)
- (A) Material
- (B) Property
- (B) Lustrous (shiny)
- (C) Diamond
- (B) Soluble
- (C) Sand
- (B) Immiscible
- (C) Transparent
- (B) Translucent
- (D) Wood
- (C) Dry wooden block
- (A) Classification
- (B) Find, study and choose them easily
- (B) Belong to different groups by different properties
- (B) Lets light into the room
Section B — Challenge / Olympiad (2 marks each)
- (B) Dissolved and is still present in the water
- (A) X is transparent, Y is translucent
- (B) Metal
- (B) Because the group depends on which property we choose
- (B) Use a magnet
- (B) The shape as well as the material
Generated by Vidaara.org · Assignment VID-M6-WS · vidaara.org