To observe whether different materials are soluble or insoluble in water 
• Think about the materials like salt, sugar, chalk powder, sand, kerosene oil, vinegar, lime juice and cooking oil.
• Identify whether they are soluble or insoluble in water.
• Record your observations in the table given below. 

Soluble and insoluble materials

S. No.	Materials	Soluble or insoluble
1.	Salt	Soluble
2.	Chalk powder	Insoluble and settles down
3.	Kerosene oil	Insoluble and forms separate layer
4.	Sugar
5.	Sand
6.	Vinegar
7.	Lime juice
8.	Cooking oil