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Atoms, Elements,Compounds and Mixtures

Gas is a fluid form of matter (meaning it moves) that fills the container it occupies
Liquid is a fluid form of matter that possesses a well defined surface and (in a gravitational field) fills the lower part of the container it occupies
Solid retains its shape independent of the shape of the container it occupies
Atoms atoms are the building blocks of all substances.
Element An element is made up of one type of atom. It is the simplest type of substance.
Diatomics Two ATOMS of the same element. They are ELEMENTS CHEMICALLY JOINED.
Compound A compound is made fro two or more elements, chemically joined together. i.e water
Mixture A mixture consists of two or more substances ( elements and compounds ) mixed together but not chemically joined to each other. A mixture can be separated by simple methods such a filtering, evaporating etc. i.e hydrogen gas and oxygen gas
Solvent a liquid in which a solute dissolves i.e the water in sea water
Solute the substance that dissolves in a liquid to form a solution i.e the salt in sea water
Solution is the mixture formed when a solute has dissolved in a solvent i.e sea water
Soluble describes a substance that will dissolve i.e salt is soluble in water
Insoluble describes a substance that will not dissolve i.e sand is insoluble in water
Homogenous mixture uniform throughout, also called a mixture i.e air and tap water
Heterogeneous mixture non uniform, different phases i.e soup, concrete and granite
Dissolving a solid melts into a liquid ora solute to pass into a liquid
Phase This is a form of matter such as a solid , liquid or gas
Phase change is a change in the state of matter, a physical change
Melting is a process where a solid changes to a liquid
Vaporization the transition of a liquid to a gas
Condensation the transition of a gas to a liquid
Sublimation the transition from a solid to a gas without passing through the liquid stage
Deposition the transition from a gas to a solid without passing through the liquid stage
Freezing point the temperature where a liquid turns to solid
Boiling point the temperature where a liquid changes to a gas
Created by: StephanieJackson