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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 |