Classification of matters

Hello! Welcome to my science e-port folio again! Did you get a better understanding of the previous lessons? I am sure you do. Well, today, we would be learning about classification of matter and kinetic Particle Theory. And,you get to learn to explain inter-conversion of states in terms of kinetic particle theory. All right, tighten your seats belts and lets rock and roll!:D

Remember matter? It occupies space and has space and also can be living and non-living things. It can exist in 3 states :

• solid( fixed volume, fixed shape and cannot be compressed)
• liquid( fixed volume, no fixed shape and cannot be compressed)
• air( no fixed volume, no fixed shape and can be compressed)

What is kinetic Particle Theory?
All matter ae made up of tiny particles. These particles are in constant, random motion.

Firstly, melting is a change from solid to liquid state. But, what happens to the particles of the solid that is heated until it melts?

1. heat energy absorbed is converted to kinetic energy
2. Particles vibrate faster about fixed positions.
3. Vibrates become sufficient to weaken attractive forces between particles.
   
4. Particles no longer in fixed positions.
5. Particles now slide over one another.
6. Substance is now in liquid state.

Freezing

1. Energy is given out by particles in the liquid.
2. Particles begin to lose kinetic energy and move more slowly.
3. Particles no longer have enough energy to move freely.
4. Some particles start to settle into fixed positions
5. All pacticles settle and vibrate at fixed positions.
6. Substance is now a solid.

Boiling

1. Heat energy absorbed is converted to kinetic energy.
2. Particles gain kinetic energy and start to move faster as the temperature rises.
3. Particles throughout liquid have enough energy to overcome the forces holding them together.
4. Particles can now spread far apart and move rapidly in more directions.
5. Substance is now in gaseous state.

Condensation

1. Heat energy is given out.
2. Particles begin to lose kinetic energy and move more slowly.
3. Particles no longer have enough energy to move far apart.
4. Particles move slow enough for the gas to change to a liquid.

Ok, now we have come to an end to our lesson. Look forward for the next lesson. Stay tuned! Enjoy!:D