Chapter Name: Is Matter Pure
Activity Name: Finding out homogeneous and heterogeneous mixtures in Is Matter Pure
This experiment aims to distinguish between homogeneous and heterogeneous mixtures using two test tubes filled with water and kerosene. A teaspoon of salt is added to both test tubes and stirred.
- Two test tubes
- Stirring rod
Step by Step Procedure:
- Take two clean test tubes.
- Fill one test tube with water and the other with kerosene, each about halfway.
- Add one teaspoon of salt to both test tubes.
- Stir both test tubes using the stirring rod.
- In the test tube with water, the salt dissolves completely, forming a clear and uniform solution.
- In the test tube with kerosene, the salt does not dissolve and remains visible as separate particles, not forming a uniform mixture.
- Ensure that the test tubes are clean and free from any contaminants before starting the experiment.
- Use the same amount of water and kerosene in their respective test tubes to make the comparison valid.
Lesson Learnt from Experiment:
The experiment demonstrates the difference between homogeneous and heterogeneous mixtures. A homogeneous mixture is one in which the components are uniformly distributed and cannot be visually distinguished, while a heterogeneous mixture is one in which the components remain visibly separate.
Science Experiment Kits for Kids