• there are 3 type of matter solid ,liquid , gases .

• All matter is composed of tiny indivisible particles too small to see

  
  

• A substance made up of various types of particles that occupies physical space and has inertia

• All the particle always use to vibrate because of the thermal energy

Proof of Particle theory :-

• Particles are constantly moving because of their energy.

• Everything around us—whether it's tiny atoms or larger grains—is always in motion.

• We know this because we can observe their movement under microscopes and through other scientific methods.

• This movement is a fundamental property of matter, driven by the energy particles have.

• For example, when you see dust particles floating in sunlight, or steam rising from hot water, you're seeing the effects of particles in motion.