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Science Burkett Matr

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

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: LUV2SWIM