Mrs. Johnson Physical Science States of Matter Mrs. Johnson Physical Science

States of Matter The Four States of Matter Four States •Solid •Liquid •Gas •Plasma

States of Matter Based upon particle arrangement Based upon energy of particles Based upon distance between particles

States of Matter Solids •Particles of solids are tightly packed, vibrating about a fixed position.   Solids have a definite shape and a definite volume.  Crystalline solid is a solid made of crystals (ex: salt, sugar, snow). Amorphous solid are not arranged in a regular pattern(ex. Plastic, rubber, glass, butter).  Amorphous solids do not melt at a distinct temperature, instead it may become softer and softer or change into another substance.

States of Matter Liquid Particles of liquids are tightly packed, but are far enough apart to slide over one another.  Liquids have an indefinite shape and a definite volume.  A liquid is an example of a fluid: a liquid that flows.  Properties of liquids: surface tension is the result of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together. Viscosity is a liquids resistance to flowing. Viscosity depends on the size and shapes of the particles and the attraction between the particles. High viscosity = flow slow/Honey, low viscosity = flow fast/Vinegar

States of Matter  Gas Particles of gases are very far apart and move freely.  Gases have an indefinite shape and an indefinite volume. Can change volume very easily.

Phase Changes

Phase Changes

States of Matter Plasma A plasma is an ionized gas. A plasma is a very good conductor of electricity and is affected by magnetic fields. Plasmas, like gases have an indefinite shape and an indefinite volume. •Plasma is the common state of matter.

Some Places Where Plasma are found! 1. Flames

2. Light

The Sun is an example of a star in its plasma state