The Three (Four) States of Matter

Words to Know

States of Matter

Solid

Liquid

Gas

Pressure

Boyle’s Law

Charles’s Law

Plasma

States of Matter

States of Matter: The physical forms in which a substance can exist.

Matter consists of tiny particles called atoms and molecules.– They cannot be seen with out a powerful

microscope– They are always in motion and are constantly

bumping into each other.

Solids

Solid: the state in which matter has a definite shape and volume.

There are two types of solids- Crystalline-have a very orderly, three-dimensional

arrangement of atoms or molecules. (Iron, Diamond and Ice)

- Amorphous-are composed of atoms or molecular that are in no particular order. (Rubber and Wax)

Liquid

Liquid: the state in which matter takes the shape of its container and has a definite volume.

Liquids can change shape, but not volume.

Important properties of liquid!

Surface Tension: the force acting on the particles surface of a liquid that causes the liquid to form spherical drops.

Viscosity: the liquid’s resistance to flow. (Honey has a high viscosity when compared to water).

GAS!!

Gas: the state in which matter changes in both shape and volume.

The atoms of gas move fast enough to break away from each other.

Pressure

Pressure: The amount of force exerted on a given area.

Laws that describe the behavior of Gas!

Boyle’s Law: states the for a fixed amount of gas at a constant temperature, the volume of a gas increases as its pressure decreases.

Weather balloons are a good example!

More Laws

Charles’s Law: states that for a fixed amount of gas at a constant pressure, the volume of the gas increases as its temperature increases.

Example: Put a balloon into the freezer and wait for 10 minutes.

Plasma

Plasma: the state of matter that does not have a definite shape or volume and whose particles have broken apart.

Plasmas conduct electric current.

Electric and magnetic fields effect plasmas.

Plasmas Continued

Natural Plasmas are found in lightning, fire, and the aurora borealis.

Artificial Plasmas are found in fluorescent lights and plasma balls, created by passing electric charges through gases.

Clear As Mud???

Anything you write down from the next slide, you can use on the test! You’d better be quick

about it!Ready, get set, GO!

Study Guide

Natural Plasmas are found in lightning, fire, and the aurora borealis.Artificial Plasmas are found in fluorescent lights and plasma balls, created by passing electric charges through gases.Boyle’s Law: states the for a fixed amount of gas at a constant temperature, the volume of a gas increases as its pressure decreases.Mr. Ballantyne is the best teacher ever. He is so cool! We should all nominate him for teacher of the year. His wife likes him to!