Chapter Name: Materials and Things
Activity Name: Soluble or insoluble in water in Materials and Things
The experiment aims to determine whether certain materials are soluble or insoluble in water. Five materials (sugar, salt, chalk powder, sand, and sawdust) will be added to separate beakers of water, and their ability to dissolve will be observed.
The observations will be recorded in a table.
- Five beakers
- Chalk powder
Step by Step Procedure:
- Take five beakers and label them from 1 to 5.
- Fill each beaker with water.
- Take small quantities of sugar, salt, chalk powder, sand, and sawdust separately.
- Add sugar to beaker 1 and stir. Observe and record the result in the table.
- Add salt to beaker 2 and stir. Observe and record the result in the table.
- Add sand to beaker 3 and stir. Observe and record the result in the table.
- Add sawdust to beaker 4 and stir. Observe and record the result in the table.
- Add chalk powder to beaker 5 and stir. Observe and record the result in the table.
|S.No||Material added||Dissolves (Yes/No)|
- Use small quantities of materials to avoid excessive waste.
- Stir each beaker thoroughly to observe any changes.
- Handle the materials and liquids with care to prevent spills or accidents.
- Dispose of the materials properly after the experiment.
Lesson Learnt from Experiment:
Based on the observations, we can conclude that sugar and salt dissolve in water, making them soluble. On the other hand, sand, sawdust, and chalk powder do not dissolve in water, making them insoluble.
This experiment demonstrates the concept of solubility, where certain substances can dissolve in a particular solvent (water in this case) while others cannot.
To further explore solubility, the activity suggests repeating the experiment with different liquids such as vinegar, lemon juice, coconut oil, and kerosene, and discussing the observations with friends.