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Science
Chapter 1 Vocabulary
| Term | Definition |
|---|---|
| Homogenous Mixture | (is) a mixture in which substances are evenly distributed throughout the mixture. |
| Substance | (is) a single kind of matter that is pure, meaning it always has a specific makeup- or composition - and a specific set of properties. |
| Mixture | (is) 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 | (is) a characteristic of a pure substance that describes its ability to change into different substances. |
| Chemical Bond | (is) a form of attraction between two atoms. |
| Heterogenous Mixture | (is) 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 | (is) The basic particle from which all elements are made. |
| Element | (is) a pure substance that can not be broken down into any other substances by chemical and physical means. |
| Chemistry | (is) the study of the properties of matter and how matter changes. |
| Solution | (is) an example of a homogeneous Mixture; forms when substances dissolve. |
| Matter | (is) anything that has mass or takes up space. |
| Physical Property | (is) a characteristic of a pure substance that can be observed without changing it into another substance. |
| Compound | (is) a pure substance made of two or more elements chemically combined in a set ratio. |
| Volume | (is) 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 | (is) the measurement of the amount of matter in the object. |
| Density | relates the mass of a material in a given volume. |
| Weight | (is) a measure of the force of gravity on you. |
| Endothermic Change | (is) a change in energy in which energy is taken in. |
| Physical Change | (is) any change that alters the form or appearance of matter but does not make any substance in the matter into a different substances. |
| Chemical Change | (is) a change in matter that produces one or more new substances. |
| Law of Conservation of Mass | (is) the fact that matter is NOT created or destroyed in any chemical or physical change. |
| Energy | (is) the ability to do work or cause change. |
| Temperature | (is) a measure of the average energy of random motion of particles of matter. |
| Thermal Energy | (is) the total energy of all particles of matter. |
| Exothermic Change | (is) a change in which energy is given off. |
| Kinetic Energy | (is) the energy of matter in motion. |
| Potential Energy | (is) the energy an object has because of its position. |
| Chemical Energy | (is) the international energy stored in the chemical bonds between atoms. |
| Electromagnetic Energy | (is) a form of energy that travels through space as waves. |
| Electrical Energy | (is) the energy of electrically charged particles movings from one place to another. |
| Electrodes | - two metal strips placed in a solution. |
Created by:
KRcolbert
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