1. The particle model, the kinetic molecular theory and Changes of State Matter, Continued

2. The Particle Model of Matter 1. All matter is made up of very small particles. 2. There are varying spaces between the particles. 3. The particles that make up matter are always moving. 4. Particles are attracted to one another. The strength of attraction depends on the type of particles.

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5. Kinetic Energy The energy of motion. All particles have kinetic energy. The kinetic molecular theory explains what happens to matter when the kinetic energy of particles changes.

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7. The Kinetic Molecular Theory KINETIC ENERGY = energy of motion. Since all particles are always moving, they have kinetic energy. Kinetic Molecular Theory: