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SORTING MATERIALS INTO GROUPS | Exercises solution | Class 6| NCERT Science UPSC

 1. Name five objects which can be made from wood.

Answer:

The following are five objects which are made up of wood:

  • Table
  • Door
  • Windows
  • Bed
  • Boat

2. Select those objects from the following which shine:

Glass bowl, plastic toy, steel spoon, cotton shirt

Answer:

  • Glass bowl, steel spoon


3. Match the objects given below with the materials from which they could be made. Remember, an object could be made from more than one material and a given material could be used for making many objects.

Object         Materials

Book            Glass
Tumbler        Wood
Chair            Paper
Toy                Leather
Shoes            Plastics

Answer:

Object         Materials

Book             Paper
Tumbler        Glass
Chair            Wood
Toy               Plastics
Shoes             Leather

4. State whether the statements given below are True or False.
(i) Stone is transparent, while the glass is opaque. [ False]
(ii) A notebook has luster while eraser does not. [False]
(iii) Chalk dissolves in water. [ True]
(iv) A piece of wood floats on water. [ True]
(v)  Sugar does not dissolve in water. [ False]
(vi) Oil mixes with water. [ False]
(vii) Sand settles down in water. [ True]
(viii) Vinegar dissolves in water. [ True]

5. Given below are the names of some objects and materials:
Water, basket ball, orange, sugar, globe, apple and earthen pitcher
Group them as:
(a) Round shaped and other shapes
(b) Eatables and non eatables

Answer:
(a) Round shaped and other shapes
  • Round shaped:
    • Basket ball, orange, globe, apple, and earthen pitcher.
  • Other shaped:
    • Water, Sugar

(b) Eatables and non eatables:
  • Eatables are Water, Orange, Sugar, and apple
  • Non-eatable are Basketball, globe, and earthen pitcher




6. List all items known to you that float on water. Check and see if they will float on
an oil or kerosene.
Answer:
The following items will float on water:
  • Charcoal
  • Paper
  • Wood
  • Leaves
  • Plastic

7. Find the odd one out from the following:
a) Chair, Bed, Table, Baby, Cupboard
b) Rose, Jasmine, Boat, Marigold, Lotus
c) Aluminium, Iron, Copper, Silver, Sand
d) Sugar, Salt, Sand, Copper sulphate

Answer:
a) Baby
b)Boat
c) Sand
d) Sand
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