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8th Unit 1b terms
Matter & Energy Key Terms
| Term | Definition |
|---|---|
| Electron Cloud | The part of an atom that contains all of the orbiting electrons |
| Element | The simplest type of substance made up of only one type of atom. |
| Orbit | To revolve around something, such as electrons revolving around the nucleus |
| Matter | Anything that has mass and takes up space |
| Neutral charge | Neither a positive nor a negative charge |
| Nucleus | The central part of an atom that contains the protons and neutrons |
| Compound | A Substance made up of two or more different types of atoms |
| Model | A structure built to represent something else for the purpose of study |
| Mixture | A physical combination of two or more substances |
| Pure Substance | A substance made up of all the same type of atom or all the same type of molecule |
| Molecule | Two or more atoms bonded together |
| Property | A characteristic of something |
| Chemical Property | A property that describes the potential to undergo some kind of chemical change |
| Physical Property | A property that can be observed without chemically altering a substance |
| Chemical Energy | The energy contained in the chemical bonds of a substance. |
| Conduction | Direct movement of energy from one molecule to the next |
| Convection cell | Circular movements of fluids due to changes in density caused by changes in temperature. |
| Convection | The movement of fluids due to differences in density created by uneven heating |
| Electrical Energy | A form of energy that is produced by the flow of electric charge through a conductor. |
| Electromagnetic Radiation | Energy produced by the motion of electrically charged particles. This form of energy can travel through empty space as well as any other substance |
| Energy | The ability to do work |
| Kinetic Energy | Energy of motion that is in the process of doing work. |
| Potential Energy | Stored energy that has the potential to do work. |
| Radiant Energy | Energy derived from the emission of radiation. Example: energy from the sun |
| Temperature | The measurement of the amount of thermal energy that an object contains. |
| Thermal Energy | The amount of energy that an object contains due to the kinetic energy within its atoms or molecules. |
| Electron | Negative particle that orbits the nucleus of an atom. |
| Proton | Positive particle found in the nucleus of an atom. |
| Neutron | Particle with a neutral charge found in the nucleus of an atom |
| Density | Having to do with how closely packed the atoms or molecules of a substance are. |
Created by:
darrin_evans
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