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Chapter 4 Sorting Materials Into Groups Solutions

Question - 1 : -
Name five objects which can be made from wood.

Answer - 1 : -

Five objects that can be made from wood are:

(i) Table

(ii) Chair

(iii) Bed

(iv) Door

(v) Bullock cart

Question - 2 : -
Select those objects from the following which shine:
Glass bowl, plastic toy, steel spoon, cotton shirt

Answer - 2 : -

Glass bowl and steel spoon

Question - 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

Material

Book

Glass

Tumbler

Wood

Chair

Paper

Toy

Leather

Shoes

Plastics

Answer - 3 : -

Object

Material

Book

Paper

Tumbler

Glass, plastic

Chair

Wood, plastic

Toy

Wood, paper, plastic

Shoes

Leather

Question - 4 : -
State whether the statements given below are ‘True’ or ‘False’.

(i) Stone is transparent, while glass is opaque.
(ii) A notebook has lustre, while an eraser does not.
(iii) Chalk dissolves in water.
(iv) A piece of wood floats on water.
(v) Sugar does not dissolve in water.
(vi) Oil mixes with water.
(vii) Sand settles down in water.
(viii) Vinegar dissolves in water.

Answer - 4 : -

(i) Stone is transparent, while glass is opaque. (False)

(ii) A notebook has lustre, while an eraser does not. (False)

(iii) Chalk dissolves in water. (False)

(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)

Question - 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 - 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

Question - 6 : -
List all items known to you that float on water. Check and see if they will float on oil or kerosene.

Answer - 6 : -

Some items that float on water are listed below:

1. Plastic bottle

2. Piece of paper

3. Piece of sponge

4. Piece of thermocol

5. Wood

6. Bamboo

7. Plastic ball

8. Cork

However, none of these items floats on oil or kerosene.

Question - 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 - 7 : -

(a) Baby

(b) Boat

(c) Sand

(d) Sand

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