Match the object given in Column I with the materials given in Column II

During summer holidays, a group of children collected a lump of salt, green grass, broken glass piece, a small thermal box pen, iron nail, glass marbles, hair, naphthalene ball, a piece of sugar candy(mishri) and tried to group them on the basis of properties given in Table 4.1 below. Help them in filling the Table.

Arrange the jumbled words to arrive at the appropriate names of materials and also write two uses of each.

(a) milaunim

(b) tcaslpi

(c) soekrnee

(d) gavnier

Pick five objects from the word box given as Fig. 4.1 which are opaque and would sink in water.

chalk, iron, Wood, aluminium, candle, cotton usually look different from each other. Give some properties by which we can prove that materials are different.