How can you describe the motion of particles in a solid? How can you describe the motion of particles in a liquid? How can you describe the motion of particles in a gas?

A solid has a definite shape and a definite volume. What are some examples?

 The particles in a solid are closely locked in position and can only vibrate, as they do not have enough energy to slide past one another.

There are 2 types of solids: 1)Crystalline Solids 2)Amorphous Solids

 Particles form a regular repeating pattern.  These patterns create crystals.  Examples: Salt, Sugar, Snow, Quartz  Melts at a specific temperature

 Particles are not arranged in a regular pattern.  Examples: Plastic, Rubber, Glass, Butter  Does not melt at a distinct temperature, may become softer or change into other substances.

A liquid has a definite volume but not a definite shape. It takes on the shape of its container. What are some Examples?

 In general, particles in a liquid are packed almost as closely as a solid, but the particles move freely.  Compared to particles in a solid, the particles in a liquid are more loosely connected and can collide with and move past one another.  This is why a liquid flows and has no definite shape.

 Surface Tension: - Result of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together - Causes water to bead up and insects to walk on water  Viscosity: - A liquid’s resistance to flowing - Depends on size and shape of particles and attraction between them - High viscosity = slow flow, like honey - Low viscosity = quick flow, like water

A gas does not have a definite shape or a definite volume. Gas particles can spread apart or be squeezed together depending on the container. What are some examples?

 In gases, the atoms and molecules are free to move independently, colliding frequently.

FLUIDS: Fluid means a “substance that flows.” Both liquids and gases are considered fluids.

 In Which type of Solid do particles form a regular repeating pattern?  What type of solid is butter? Crystalline Solid Amorphous Solid

 What are the 3 States of Matter?  Which state of matter has a definite volume, but no shape of its own? Solid, Liquid, Gas Liquid

 What state of matter is not considered a fluid?  Does juice have a high or low viscosity? Solids Low