Wednesday, July 6, 2011

Chemistry Review : Matter & Energy




Atoms make up matter .

                                                   
                                                            Solid Liquid & Gas 
Solids are more dense than liquids, and liquids are more dense than gas.In a solid the molecules are move slower and are more tightly packed than using less enegry. The matter can also be considered a Fluid . A fluid is a state of matter in which the particles are free to move past each other .However most matter on Earth is either a solid , liquid or gas most of the universe is made of Plasma . Plasma is a state of matter similar to gas. A Plasma is made up of electrically charged particles.
All kind of matter have Thermal Enegry . Temperature is a measure of how hot or how cold something is , specifically a measure of the average Kinetic Enegry of the particles in an object. Particles of matter are ALWAYS moving , however not all particles are moving at the same speed. The higher the average Kinetic Enegry of the particles in a substance the higher the temperature.

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