There exists space between particles in Matter Around Us – Class 9 Science Experiment

Chapter Name: Matter Around Us

Activity Name: There exists space between particles in Matter Around Us

Activity Description:

There exists space between particles in Matter Around Us - Class 9 Science Experiment

This experiment aims to demonstrate the existence of space between particles in both solid and liquid states. The experiment involves dissolving salt in water and observing the change in water level as well as the behavior of salt particles.

Required Items:

  1. Beaker
  2. Water
  3. Salt
  4. Glass rod
  5. Marking instrument

Step by Step Procedure:

  1. Take a beaker and fill it with some water to a marked water level.
  2. Add a measured amount of salt to the water.
  3. Stir the mixture thoroughly with a glass rod to ensure proper dissolution of salt in water.
  4. Observe if there is any change in the water level after the salt is added and dissolved.
  5. Add some more salt and stir it again.
  6. Observe and note any further changes in the level of water.

Experiment Observations:

Upon adding salt and stirring it, the water level may increase due to the dissolved salt occupying space between the water particles.

Precautions:

  1. Ensure accurate measurement of salt and water to maintain consistency in the experiment.
  2. Use a clean glass rod for stirring to avoid contamination.
  3. Handle the beaker and glass rod carefully to prevent accidents.

Lesson Learnt from Experiment:

The experiment confirms that both solid and liquid particles have some space between them. When a solid (salt) is dissolved in a liquid (water), the solid particles fill in the spaces between the liquid particles.

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