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Science 2nd 9 w test
Science Second Nine Weeks Test: Term and Definition
| Definition | Term |
|---|---|
| The temperature at which a substance changes a solid to a liquid. | Melting point |
| The expansion of matter when it is heated. | Thermal expansion |
| The transfer of heat through waves. | Radiation |
| A measure of the average kinetic energy of the individual particles in an object. | Temperature |
| Transfer of heat through liquids or gases. | Convection |
| Transfer of heat created by direct contact. | Conduction |
| No more energy can be removed from matter. | Absolute zero |
| ____ always moves from a warmer place to a cooler place. | Heat |
| A material that doesn't let heat travel through it. | Insulator |
| Total energy off all the particles in a substance of material. | Thermal energy |
| Energy of position. | Potential |
| The ability to do work. | Energy |
| Energy of motion. | Kinetic |
| Energy that moves in electromagnetic waves. | Radiant |
| Energy stored in the nucleus of an atom. | Nuclear |
| Energy created by moving molecules within a substance. | Thermal |
| Energy occurs when an object moves from one place to another. | Mechnical |
| Energy created by moving electrons. | Electrical |
| Energy that moves in longitudinal waves. | Sound |
| A short, easy way to show chemical reaction, using symbols instead of words. | Chemical equation |
| A number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound. | Subscript |
| The process of splitting a nucleus into two smaller nuclei. | Nuclear Fission |
| The combining of two nuclei with low masses to form one large nucleus. | Nuclear Fusion |
| Science and technology of small things. | Nanotechnology |
| A chemical reaction that absorbs energy in the form of heat. | Endothermic Reaction |
| A chemical reaction that releases energy in the form of heat. | Exothermic Reaction |
| Rule that energy cannot be created or destroyed. | Law of Conservation of Energy |
| Rule that mass is neither created nor destroyed during a chemical reaction. | Law of Conservation of Mass |
| The starting substances in a chemical equation, on the left side of the arrow. | Reactants |
| The substances that are formed in a chemical reaction on the right side of the arrow. | Products |
| The arrow in between the reactants and the products. | Yield |
| A number placed in front chemical formula in an equation that indicates how many atoms or molecules of each reactant and product are involved in a reaction. | Coefficient |
| A solid that forms from solution during a chemical reaction. | Precipitate |
| Able to be hammered or pressed permanently out of shape without breaking or cracking. | Malleable |
| Able to be drawn out into a thin wire. | Ductile |
| Same element with different numbers of neutrons. | Isotopes |
Created by:
laurenbarrett
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