1st quarter es review
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FAITHSBOYZ on November 5, 2010
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41 terms
Terms | Definitions |
|---|---|
 Inference | An interpretationg of an observation. |
| Measurement | Means of expressing an observation with greater accuracy or precision. |
| Mass | The amount of matter in an object. |
| Volume | The amount of space that an object occupies. |
| Density | The concentration of matter in an object. |
| Change | Occurs when the properties or characteristics of a part of the environment have been altered. |
| Event | The ovvurrence of a change in the properties of an object or a system. |
| Field | How much a meazsurable aspect of the environment. |
| Prediction | A type of inference about the conditions and behavior of the environment in the future. |
| Natural Hazard | A non-human-related object, process, or situation that has the possibiolity of causing loss of life, personal injury, or loss of property. |
| Interface | The boundary between regions with different properties. |
| Dynamic Equilibrium | Evironmental equilibrium resulting from opposing forces or actions balancing out. |
| Natural Resources | The materials and energy sources found in the environment that humans use in their daily lives. |
| Pollution | The environment occurs when the concentration of any substance or form of energy reaches a proportion that adversely affects people or their property, or other life forms. |
| Model | A way of representing the properties of an object or system. |
| Atmosphere | The layer of gases that surrounds Earth above the surface of liquid water and rocky material. |
| Pauses | The interfaces, or boundaries, of the layers of Earth's atmosphere. |
| Hydrosphere | The layer of liquid water that lies between the atmosphere and much of the upper layer of Earth's interior. |
| Lithosphere | The layer of rock that forms the solid outer shell at the top of Earth's interior. |
| Crust | Upper portion of the lithosphere. |
| Soil | Material contains abundant organic matter. |
| Earth's Interior | The region extending from the rocky part of Earth's surface to Earth's center. |
| Gradient | The rate of change from place to place within the field. |
| Galaxy | A huge group of stars held together by gravity. |
| Milky Way Galaxy | The group of billions of stars that includes the sun and our solar system, it is visible as a faint band of light acrss the night sky |
| Light-Year | The distance electromagnetic energy can travel in one year, approximately 6 trillion miles (10 trillion km) |
| Red Shift | A displacementr of the spectral lines of very distant stars and galaxies, an invrease in the wavelength of starlight caused by rapid relative motion of star waway from the observer. |
| Doppler Effect | The apparent change in frequency and wavelenth of energy radiated by a source as a result of the motion of the source or the ovserver |
| Cosmic Backround Radiation | Weak electromagnetic radiation (radio waves) left over from the formation of the universe (big bang) |
| Big Bang Theory | The theory that the universe formed as a concentration of matter expanded explosively |
| Liminosity | The acrual brightness of a star or rate of total energy emitted compared to the Sun. |
| Nuclear Fusion | The combining of the nuclei of smaller elements with some of the mas being converted into energy. |
| Star | Usually a large ball of gas held together by gravity that produces trmendous amounts of energy and shines. |
| Terrestial Planets | Close to the sun and mostly solid. Mercury, Venus, Earth, and Mars. |
| Jovian Planits | Far from the sun and are largely gaseous. Jupiter, Saturn, Uranus, and Neptune. |
| Rotation | Planets spin on an imaginary axis in a motion. |
| Revolution | Its movement around the sun in a path. |
| Ellipse | Earth's orbit is an obal shape. |
| Eccentricity | The out-of-roundness of an ellipse. |
| Inertia | THe concept that an object at rest will rtend to remain at rest. |
| Gravitation | The attractive force that exists between any two objects in the universe. |
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