Class 9 Chemistry Matter In Our Surroundings Experiments that proves properties of matter

Experiments that proves properties of matter

The properties of matter can be proved using a simple experiment form our day to day life.

EXPERIMENT I:

 

  • Take a glass filled with water and mark the level of water in the glass.
  • Add sugar to the water in the glass.
  • As soon as we add the sugar the level of water rises from the marked line.
  • Take a stirer and keep on stiring the solution. After some time sugar gets dissolved and level comes back to its original marked line.
  • This experiment proves that matter are made up of tiny particles due to which the particles of sugar adjsuted themselves into the spaces available between the tiny particles of water.
  • This phenomenon of intermixing of particles of two different types of matter on their own is known as diffusion.

Fig. Sugar solution when stirred dissolves in water

The above experiment proves that matter is made up particles that are tiny and have spaces between them

 

EXPERIMENT II:

  • Take a beaker filled with water.
  • Pour some seeds of pulses and leave the beaker undisturbed.
  • Soon you will find that the seeds keeps on moving on the surface of water in a zigzag motion.
  • This motion is known as Brownian motion.
  • This experiment proves that particles of matter are continuously moving due to which the seeds left undisturbed kept on moving on the surface of water. This means that they possess kinetic energy which rises on rise in temperature because as the temperature rises particles starts to move faster.

Fig. Seeds undergoing brownian motion

The above experiment proves that the particles of matter are continously moving.

 

EXPERIMENT III:

  • We can easily move our hands in a bucket filled with water but if we try to do the same with a solid object it seems impossible because they have greater force of attraction between them that keeps the particles united and hence we cannot separate the particles.

This experiment proves that the particles of matter have force of attraction between them.

 

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