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Science Burkett Matr

Study cards for Mrs. Burkett's 7th grade academic classes Matter Unit

Question	Answer
Anything with mass and takes up space	Matter
Words or phrases used to describe an object	Properties
Two substances mixed together but not chemically combined	Mixtures
A mixture that appears to be the same throught, well mixed	Homogeneous mixture
A mixture that does not appear to be the same throughout, least mixed	Hetergeneous mixture
A type of Hetergeneous mixture when one substance is disssolved in another	Solution
The substance that does the dissolving in a solution	Solvent
The substance that is dissolved in a solution	Solute
A change when the substance stays the same	Physical change
A chance in which a new substance is formed	Chemical change
When two or more substances are chemically combined	Compounds
The smallest part of a compound with all the properties of that compound	Molecule
A number to the lower right of an a element symbol in a chemical formula, Tells how many atoms are in are present in a compound	Subscript
In front a of a chemical formula, tella how many molecules are in the formula	Coefficient
The simplest pure substance	Element
The smallest part of a element with all the properties that that element has	Atom
The center of an atom	Nucleus
Neutral charge and are found in the nucleus of an atom	Neutrons
Have a + charge and are found in the nucleus of an atom	Proton
Have a - charge and are found outside of the nucleus	Electron
Electrons are found here	Energy levels outside the nucleus
Equal to the # of protons in the atom	Atomic #
Sum of the protons and neutrons	Mass #
Phase of matter with no definite shape but has a definite volume	Liquid
Phase of matter with no definite shape or a definite volume	Gas
Phase of matter with both a definite shape and a definite volume	Solid
Must be added to or taken away from a substance in order for a phase change to occur	Energy
A solid changing to a liquid	Melting
A liquid changing to a solid	Freezing
A liquid changing to a gas only at the surface of the liquid	Evaporation
Gas changing to a liquid	Condensation

Created by:

Melia Andrulonis on 2011-02-23

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Science Burkett Matr

Study cards for Mrs. Burkett's 7th grade academic classes Matter Unit