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Science Vocabulary
Vocab. words
| Term | Definition |
|---|---|
| Thermal energy | |
| Solid | firm and stable in shape; not liquid or fluid |
| Liquid | having a consistency like that of water or oil, i.e., flowing freely but of constant volume. |
| Gas | an airlike fluid substance which expands freely to fill any space available, irrespective of its quantity. |
| Plasma | the colorless fluid part of blood, lymph, or milk, in which corpuscles or fat globules are suspended. |
| Colloid | A colloid is a solution that has particles ranging between 1 and 1000 nanometers in diameter, yet are still able to remain evenly distributed throughout the solution. |
| Phase Change | phases of matter definition. The states in which matter can exist: as a solid, liquid, or gas. When temperature changes, matter can undergo a phase change, shifting from one form to another |
| Particle | a minute portion of matter |
| Melting Point | the temperature at which a given solid will melt. |
| Freezing Point | the temperature at which a liquid turns into a solid when cooled. |
| Boiling Point | the temperature at which a liquid boils and turns to vapor. |
| Evaporation | Evaporation is the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and/or pressure. Evaporation is a fundamental part of the water cycle and is constantly occurring throughout nature. |
| Condensation | water that collects as droplets on a cold surface when humid air is in contact with it. |
| Volume | the amount of space that a substance or object occupies, or that is enclosed within a container, especially when great. |
| Mass | a coherent, typically large body of matter with no definite shape. |
| Density | the degree of compactness of a substance. |
| Pure Substance | A material that is composed of only one type of particle; examples of a pure substance include gold, oxygen and water. Mixture. A material made up of at least two different pure substances. Mechanical Mixture. A mixture in which each material maintains it |
| Atom | the basic unit of a chemical element. |
| Molecule | a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction. |
| Element | a part or aspect of something abstract, especially one that is essential or characteristic. |
| Compound | a thing that is composed of two or more separate elements; a mixture |
| Extended Structure | mode of building, construction, or organization; arrangement of parts, elements, or constituents: |
| Physical Change | Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds. |
| Chemical Change | Chemical change is any change that results in the formation of new chemical substances. At the molecular level, chemical change involves making or breaking of bonds between atoms. These changes are chemical: iron rusting (iron oxide forms) |
| Natural Reasource | materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain. |
| Synthetic material | Examples of synthetic fabrics include polyester, acrylic, nylon, rayon, acetate, spandex, lastex,orlon and Kevlar. Synthetic (chemically produced) fibres are made by joining monomers into polymers, through a process called polymerization. |
Created by:
Amaiya Hughes
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