Matter is made of particles

Matter is made of particles

Every matter is made up of very small particles. These tiny particles are extremely small which cannot be seen even with high power microscope. These small particles that form other objects are called atoms and molecules.

How to prove that matter is made up of small particles.

We can easily observe that matter is composed of small particles by mixing two different things and noticing the two dissolve in each other.

1.      Dissolving solid in liquid

2.      Dissolving liquid in liquid

3.      Mixing two gases

Dissolving solid in liquid: To discuss this we will take

 Potassium permanganate, a purple coloured solid crystalline substance and water, a colourless liquid. When potassium permanganate is added to beaker full of water and leave it as it is, slowly the colour of water will change to purple, this is because the molecules of potassium permanganate separate from one another and diffuse in water. Here diffusion means that the molecules of potassium permanganate spread in water to make a uniform solution.

Dissolving liquid in liquid: To discuss this we will take

 Blue coloured ink and water. When ink is added to beaker full of water and leave it as it is, slowly the colour of water will change to blue, and this is because the molecules of ink diffuse in water. This means that ink and water both are made of small particles.

Mixing two gases: let’s take 2 test tube

One with colourless gas and other with bromine vapour, a red-brown coloured gas when the two test tubes are joined after some time the content of both gases mix with each other. Content of both tubes are made of small particles that diffuse in each other

This diffusion phenomenon gives us two conclusions:

1.      Matter is made of two particles.

2.      These particles have kinetic energy and they are constantly moving.