Presentation on theme: "Anything that has mass & takes up space Matter Mass the amount of matter an object contains."— Presentation transcript:
anything that has mass & takes up space Matter Mass the amount of matter an object contains
States of Matter Solid – definite shape definite volume Particles of a solid are packed close together and the motion seems to be a vibration.
States of Matter Liquid - no definite shape definite volume Particles of a liquid bump into each other; they push the particles farther apart and move past them. This causes the "flow" of a liquid.
States of Matter Gas – no definite shape no definite volume The particles collide with enough force to push the particles so far apart that they escape the attraction of the surrounding particles. high compressibility
4 th State of Matter? Plasma Closely related to gases Particles are neither molecules or atoms, but rather electrons and positive ions Formed at very high temperatures (high enough to ionize the atoms) Move freely like the particles of a gas Examples Stars, comets, and aurora borealis
Names for phase changes Melting - Solid changes to Liquid Freezing - Liquid changes to Solid Sublimation - Solid changes to Gas Deposition - Gas changes to Solid Vaporization - Liquid changes to Gas Evaporation - vaporization that takes place at the surface of a liquid. Condensation - Gas to Liquid
Kinetic Energy As matter moves from the (solid → liquid → gas) its kinetic energy increases Kinetic Energy Law Matter is made up of small particles (atoms, molecules, ions) These particles are in constant random motion These particles collide with themselves and the wall of their container What happens as temperature is increased?