1. Chapter 3 Section 1
States of Matter

2. Solids Solids have a definite shape and definite volume.
Particles in a solid are closely locked in position and can only vibrate.
Types of solid
Crystalline Solids are solids that have particles arranged in repeated pattern example salt, sugar.
Amorphous solids are solids that do not have particles arranged in repeated pattern, example plastic, rubber.

3. Liquids Liquids have a definite volume but not definite shape.
Particles in a liquid are more loosely connected and can collide with and move past one another. That is why liquids (fluids) have no definite shape and can flow.
Properties of Liquids
Surface tension is the inward pull of the molecules of the liquid that brings surface molecules closer together.
Viscosity is liquids resistance to flow. Honey has high viscosity, alcohol has low viscosity.

4. Gases
Gases do not have a definite shape or volume, they take the shape of the container.
Gas particles are free to move independently and colliding frequently. There is a large distance between the particles of gas.