Write the properties of these substances.
Water, glass, chalk, iron ball, sugar, salt, flour, coal, soil, pen, ink, soap.
Water- Fluidity
Glass- Transparent, brittle
Chalk- Brittle
Iron ball- Hardness
Sugar- Solubility
Salt- Solubility
Flour-Solubility
Coal- Brittle
Soil- Solubility
Pen- Hard
Ink- Fluidity
Soap- Brittle