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Definition
| estimation of age of an object by comparison of the ratios of appropriate isotopes with known rates of decay |
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| loss of a majority of species due to a rare catastrophic event |
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| Eclipse (solar and lunar) |
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Definition
| alignment of Earth, moon, and Sun in which Earth casts a shadow on the moon or the earth casts a shadow on the earth. |
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Definition
| the process of ice building up layer upon layer and moving across the earth in a slow moving fluid motion |
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| changes in the long-term weather conditions for a reigon, generally determined by several years of records. |
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| Principle of Superposition |
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Definition
| concept that in an undiusturbed rock sequence, more recent rock layers are deposited on top of older rock layers |
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Definition
| the change in weather and temperature due to the engle of the sun on earth |
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| measure of the angle of light going into a system |
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| a form of reasoning where general conclusions are based on a series of specific observations |
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Definition
| the process of splitting a heavier atomic nucleus into two or more lighter nuclei and emitting energy |
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| Hertzsprung-Russell Diagram |
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Definition
| graph that relates stellar properties, such as temperature and luminosity, used to classify stars |
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| the brightness of a star seen from earth |
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| process of combining 2 or more lighter weight atomic nuclei into a heavier nucleus and emitting energy |
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| the main type of star as seen on the HR diagram. It has diagonal pattern from lower right to upper left. This is what our sun is. |
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Definition
| large, bright star; within the sequence of stellar evolution |
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| very small, dense star nearing the end of its life |
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| a testable statement that is subject to further investigation and potential confirmation |
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Definition
| One factor in an experiment that is determined and changed by the experimenter (sometimes referred to as the manipulated variable), usually graphed on the X axis |
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| the factor measured or observed to obtain results (sometimes referred to as the responding variable), usually graphed on the Y axis |
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| this group in an experiment that gets everything it needs in order for the experiment to be valid |
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Term
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Definition
| a variable must be able to be removed in some fasion in order to be valid |
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Term
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Definition
| the experiment must have a variable that can be measured in order to be deemed valid |
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Term
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Definition
| an experiment must be able to be recreated exactly in order to be deemed vald |
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| the search to be able to explain and therefore predict nature |
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Definition
| statestical sampling or testing error caused by systematically favoring some outcomes over others |
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Definition
| smallest particle of a substabnce that retains all of the properties of the substance and is composed of one or more atoms |
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Definition
| the part of the world in which life can exist |
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