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15 Cards in this Set

  • Front
  • Back
atom
submicroscopic particlesw that constitute the fundamental building blocks of ordinary matter
molecules
two or more atoms joined in a specific geometrical arrangement
hypothesis
a tentative interpretation or explanation of the observation
experiments
highly controlled procedures designed to generate observations
law of conservation of mass
in chemical reaction, matter is neither created nor destroyed
scientific method
observations hypothesis experiment theory in that order
matter
anything that occupies space and has mass
the states of matter
solids liquids and gases
solid matter
atoms or molecules are packed close together in fixed locations
solid matter can be
crystalline or amorphous
crystalline
atoms or molecules are arranged in patterns with long range repeating order
amorphous
atoms or molecules do not have nay long range order
liquid matter
atoms or molecules park about as closely as they do in solid matter but they are free to move relative to each other this gives liquid a fixed volume but not a fixed shape.
gaseous matter
atoms or molecules have alot of space between them and are free to move relativef one another making gas compressible
compressible
the ability to be squeezed into a smaller volume such as gases