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science 6th
6th grade matter vocabulary Mrs. Munoz
Question | Answer |
---|---|
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 |