Kinetic Theory of Matter: explains the forces that exist between molecules and the energy that these molecules possess. ALL matter is composed of small particles. Matter MUST  be made up of atoms.  The particles are in CONSTANT MOTION. Particles collide with each other as well as the container and DO NOT lose energy. 

Kinetic Theory of Matter: Assumptions: 

* All matter is composed of small particles 

* Small particles are always in constant motion 

* Particles collide with each other as well as the container and do not lose energy

** As the temperature goes up so does the energy level. 

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Melting: Energy Increases, Particle Attraction Decreases (Solid to a Liquid) 

Freezing: Energy Decreases, Particle Attraction Increases 

Vaporization: Energy Increases, Particle Attraction Decreases (Liquid to a Gas) 

Condensation: Energy Decreases, Particle Attraction Increases (Gas to a Liquid) 

Sublimation: HUGE Energy Increases, HUGE Particle Attraction Decreases

(Solid to a Gas) 

Deposition: HUGE Energy Decreases, HUGE Particle Attraction Increases

(Gas to a Solid) 

What is the difference between Evaporation and Boiling? 

• Boiling happens when water gets really hot, like when it's on a stove. It reaches a certain temperature (called the boiling point), and bubbles form all over as water turns into steam quickly. This happens all through the water.

• Evaporation happens much slower and at lower temperatures. Water slowly turns into gas from the surface, even if it's not super hot, like a puddle drying up on a sunny day. There are no bubbles, and it can happen at any temperature.