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Science
| Term | Definition |
|---|---|
| Homogeneous Mixture | a mixture in which substances are evenly distributed throughout the mixture |
| Substance | a single kind of matter that is pure, meaning it always has a specific makeup- or composition- and a specific set of properties |
| Mixture | Made of two or more substances- elements, compounds, or both- that are together in the same place but not chemically combined |
| molecules | groups of two or more atoms held together by chemical bonds |
| Chemical Property | a characteristic of a pure substance that describes its ability to change into different substances |
| Chemical bond | A force of attraction between two atoms |
| Heterogeneous Mixture | a mixture in which pure substances are unevenly distributed throughout the mixture |
| Chemical Formula | Shows the elements in the compound and the ratio of atoms |
| Atom | the basic particle from which all elements are made |
| Element | a pure substance that cannot be broken down into any other substances by chemical and physical means |
| Chemistry | the study of the properties of matter and how matter changes |
| Solution | an example of a homogeneous mixture; forms when substances dissolve |
| Matter | anything that has mass or takes up space |
| Physical Property | a characteristic of a pure substance that can be observed without changing into another substance |
| Compound | a pure substance made of two or more elements chemically combined in a set ratio |
| Volume | the amount of space that matter occupies |
| International System of Units (ISU) | the system of units (SI) used by scientists to measure the properties of matter |
| Mass | the measurement of the amount of matter in an object |
| Density | Relates the mass of a material in a given volume |
| Weight | a measurement of the force of gravity on you |
| Endothermic Change | a change in energy in which energy is taken in |
| Physical Change | any change that alters the form or appearance of matter but does not make any substance in the matter into a different substance |
| Chemical change | a change in matter that produces one or more new substances |
| Law of Conservation of Matter | the fact that matter is not created or destroyed in any chemical or physical change |
| Energy | the ability to do work or cause change |
| Temperature | a measure of the average energy of random motion of particles of matter |
| Thermal Energy | the total energy of all the particles of matter |
| Exothermic change | a change in which energy is given off |
| Kinetic energy | the energy of matter in motion |
| Potential Energy | the energy an object has because of its position |
| Chemical Energy | the internal energy stored in the chemical bonds between atoms |
| Electromagnetic Energy | A form of energy that travels in waves |
| Electrical Energy | the energy of electrically charged particles moving from one place to another |
| Electrodes | two metal strips placed in a solution |
Created by:
Mwestmoreland
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