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A.P.S.

Matter, Atoms, and Molecules

TermDefinition
Matter Something that takes up space and has a mass. Doesn't include things like wind.
Atom The building blocks of a molecule. When two or more atoms combine they create a molecule and possibly matter
Molecule The item that is created after two or more atoms are combined. Some molecules are matter while others may not be matter.
Element An element is a single substance that can be used to create other things. Hydrogen is an element because it is a single element and not a combination of elements. H2O is a combination or two hydrogen and one oxygen.
Compound A compound is a mix of two or more elements. H2O is a compound while H is not a compound. H2O is a combination of two hydrogen and one oxygen atoms.
Pure Substance A substance made up of one type of matter(can be an element or a compound). Has a constant composition.
Mixture A substance made up of multiple types of matter . Has a variable composition.
Heterogeneous Mixture A mixture where the particles are not evenly distributed.
Homogeneous Mixture A mixture where the particles are evenly distributed.
Created by: 2017105