Define Matter. - Matter is anything that has mass (weight) and takes up space (has volume)., Define Mass. - Mass is the amount of ma tter an object has. The weight of objects is created by gravity., Define Volume. - Volume is the amount of space something takes up. Different states of matter fill volumes differently., What are the 5 states of matter? - Bose-Einstein Condensates - Solid - Liquid - Gas - Plasmas, What is another name for state of matter? - A phase., Define physical change. - When matter changes from one phase of matter to another without changing the atoms that make the matter., Define chemical change. - When the matter of something is chemically changed to something new., What are two things you can change to create a physical change in matter? - Add or take away energy (temperature) - The pressure of a system, Solid to liquid. - Melting., Liquid to solid. - Freezing., Solid directly to a gas. - Sublimation., Gas directly to a solid. - Deposition., Liquid to a gas. - Vaporization/Boiling., Gas to a liquid. - Condensation., What are physical characteristics of a solid? - Solids hold their shape whether they're hard, soft, big, or small. The atoms and molecules don't move much., What are the physical characteristics of a liquid? - Liquids are found between the solid and gas states. Liquids fil the shape of any container, but don't change in volume., What are the physical characteristics of a gas. - The molecules of gases are spread out, full of energy, and always moving in random ways. A gas can fill a container entirely regardless of the containers size or shape., What is an example of plasma? - Stars - Northern Lights - Neon Signs - Fluorescent Light Bulbs., Define a mixture. - Mixtures are everywhere and make up most things in nature. They are made of two or more substances that mix physically but not chemically., Define a solution. - Solutions are special mixtures in which the different molecules being mixed are evenly spread throughout the solution. One substance dissolves in the other., Define absolute zero. - Absolute zero is when it is so cold that all molecular motion stops.,

Chemistry Flashcards

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