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science 6th

6th grade matter vocabulary Mrs. Munoz

QuestionAnswer
Matter anything that has mass and takes up space
Physical properties the characteristics of a substance that can be observed or measured without changing the substance( you can observe it using your senses)
Chemical properties the discribe of how one kind of matter reacts in the presence of another matter(quemical reactions)
Characteristic properties the properties of matter will always be true and identifies the substance because will not change(temperature, melting point, boiling point
Solid the state in which matter has a definite shape and volume
liquid the state of matter which takes the shape of its container and has a definite volume
Gas the state of matter that does not has a definite shape or volume
Plasma the states of matter that does not have a definite shape or volume and whose particles have been broken apart
Boiling point vaporization that occurs throughout a liquid
Melting point change of state from solid to liquid
Freezing point change of state from liquid to solid(ice)
Physical changes the change in the state of matter(freezing,melting.boiling)that does not change the identity of the matter
Chemical changes the change of a matter into a new substance with new molecular structures and chemical properties
Chemical activity the ability of a substance to undergo a chemical change
Phase describes the phisical state of mattter(solids,liquids,gases,plasmas)
Vapor a substance in the gas phase at a temperature lower than its critical temperature.
Condense change of state from gas to liquid
Condensation change of state from gas to liquid
Freezing change of state from liquid to a solid
Melting change of state from solid to liquid
Sublimation change of state from a solid directly to a gas
Solidification change of matter to a solid (hard) state
Vaporization the change of state from liquid to gas
Evaporating the procces by which a liquid changes into a gas
Boiling vaporization that ocurs throughtout a liquid
Atom the smallest particle from which all elements are made
Element a substance that can not be broken down into other substance
Compound A combination of two or more elements or parts.
Chemical bonds is a force of attraction between two atoms
Solution combinations of elements or compounds that conserves its properties
Molecule the combination of two or more atoms by chemical bonds
Heterogeneous the substances in the kind of a mixture are not spread out evenly. Example: a bottle of liquid salad dressing.
Substance the substance of which all physical objects are made
Homogeneous substance - the substances are spread evenly throughout, a homogeneous mixture is called a solution. Example: vinegar (water and acetic acid are mixed evenly throughout).
Suspension mixture of two chemicals with the character that one does not rapidly settle out
Colloid is a substance microscopically dispersed evenly throughout another one
Protons positive charge particles located in the nucleos of an atom
Electrons negative charge particles that moves around the nucleos of the atom
Neutrons particles located in the nucleos with no charge
Physical forces the force applied to an element or compound to change it from one state to another(temperature,presure,energy)
Periodic table a tabular display of the chemical elements
Group A group or family is a vertical column in the periodic table
Period A period is a horizontal row in the periodic table
Atomic mass total mass of protons, neutrons and electrons in a single atom
Atomic number the number of protons found in the nucleus of an atom
Created by: payory on 2010-09-12



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