2. THE STATES OF MATTER
• The three main sections of the states of matter are: the solids,
liquids, and gases.
• Kinetic energy, pressure, and volume can dictate what phase
a substance can be in.
• For example, solids to not contain a lot of kinetic energy while
under pressure. This squeezes the atoms close together and
forms a solid.
3. KINETIC MOLECULAR THEORY
• Kinetic energy determines molecular movement. Molecular
movement then determines the states of matter. The most
kinetic energy is a gas. Also there is a lot of space in between
molecules which increases the amount of collisions. If you
decrease the kinetic energy of a gas, it becomes a liquid.
• The molecules also have less space and have more of a rolling
movement.
• The minimal kinetic energy is a solid. The molecules are packed
together, and are vibrating.
4. PHASE CHANGES
• Evaporation is the change from a liquid to a gas.
• Condensation is the change between gas to a liquid.
• Melting is the change from solid to a liquid, and vise versa is
freezing.
• Sublimation is the change from solid to gas directly without
going through liquid.
• Deposition is the change from a gas to a solid without going
through liquid.
