Sorting Materials Into Groups

1. Five objects that can be made from wood are:
   (i) Table
   (ii) Chair
   (iii) Bed
   (iv) Door
   (v) Bullock cart
2. Glass bowl and steel spoon

3. Object	Material
   Book	Paper
   Tumbler	Glass, plastic
   Chair	Wood, plastic
   Toy	Wood, paper, plastic
   Shoes	Leather

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)
   
5. (a) Round-shaped: Basketball, orange, globe, apple, earthen pitcher
   Othershapes: Water, sugar
   (b) Eatables: Water, orange, sugar, apple
   Non-eatables: Basketball, globe, earthen pitcher
   
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.
   
7. (a) Baby
   (b) Boat
   (c) Sand
   (d) Sand