Question

Question 18

During summer holidays, a group of children collected a lump of salt, green grass, broken glass piece, a small thermocol 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. Help them in filling the table.

$\begin{array}{ccccc}\text{Name of the}& \text{Appearance}& \text{Transparency}& \text{Floats/Sinks}& \text{Soluble}/\\ \text{Material}& \text{(Hard/Soft)}& \text{(Transparent}/& \text{in water}& \text{insoluble in}\\ & & \text{Translucent/Opaque)}& & \text{Water}\\ ..........& ..........& ..........& ..........& ..........\\ ..........& ..........& ..........& ..........& ..........\end{array}$

Answer 1

The complete table is shown as below:

$\begin{array}{ccccc}\text{Name of the}& \text{Appearance}& \text{Transparency}& \text{Floats/Sinks}& \text{Soluble}/\\ \text{Material}& \text{(Hard/Soft)}& \text{(Transparent}/& \text{in water}& \text{insoluble in}\\ & & \text{Translucent/Opaque)}& & \text{Water}\\ \text{Lump of salt}& \text{Hard}& \text{Opaque}& \text{Sinks}& \text{Soluble}\\ \text{Green grass}& \text{Soft}& \text{Opaque}& \text{floats}& \text{InSoluble}\\ \text{Broken glass piece}& \text{Hard}& \text{Transparent}& \text{sinks}& \text{InSoluble}\\ \text{A small themocol box}& \text{Soft}& \text{Opaque}& \text{Floats}& \text{InSoluble}\\ \text{Pen}& \text{Hard}& \text{Opaque}& \text{Sinks}& \text{InSoluble}\\ \text{Iron nail}& \text{Hard}& \text{Opaque}& \text{Sinks}& \text{InSoluble}\\ \text{Glass marbles}& \text{Hard}& \text{Transparent}& \text{Sinks}& \text{InSoluble}\\ \text{Hair}& \text{Soft}& \text{Opaque}& \text{Floats}& \text{InSoluble}\\ \text{Naphthalene ball}& \text{Hard}& \text{Opaque}& \text{Sinks}& \text{InSoluble}\\ \text{A piece of sugar candy}& & & & \\ \text{(mishri)}& \text{Hard}& \text{Translucent}& \text{Sinks}& \text{Soluble}\end{array}$