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27 Cards in this Set
- Front
- Back
rock cycle
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the process in which rocks form, change, break down and reform
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crystallization
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process through which rocks form, either from molten rock or from coming out of solution
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plate tectonics
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theory that earths surface (lithosphere) is divided into a series of segments (plates) which move.
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atoms
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the smallest unit of an element that has the properties of that element
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ions
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atoms which have lost or gained electrons
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force
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push or pull
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newtons 3 laws
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1. inertia
2. f=ma 3. action-reaction |
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bouyancy
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force is equal to the force exerted by the water displaced by the object.
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gravity
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the pull of an object toward the center of its mass. m1*m2/d2
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topography
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surface features of an area of Earth's continent
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contour lines
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connect points of equal elevation.
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Rules for topographic maps
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1. contour lines never cross
2. circles show highest and lowest points in closed systems 3. hasher lines indicate decrease in elevation 4. contour lines crossing a stream point to higher elevations 5. index lines have numbers on them 6. contour lines crossing a stream point to higher elevation 7. closer contour lines = steeper the slope |
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science process skills
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set of steps through which information is gained and verified, including observations, hypothesis, variables writing procedures, organized data.
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observation
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information gained using the 5 senses
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hypothesis
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proposed solution to a problem to be tested. based on observations and previous experience
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variable
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anything which can change in an experiment
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independent
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the ONE variable which is deliberately changed from one trial to another by the experimenter
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dependent
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the variable which may change in response to a change in an independent variable
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controlled
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those variables which must remain the same through out the experiment
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proceudre
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step by step sequence form conduction an experiment
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data
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observations of the changes made due to manipulation of one variable. they are usually recorded in an organized chart
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quantitative
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observations involving numbers (measurements )
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qualitative
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observations os what occurs very descriptive
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types of mining
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strip mining
open pit mining deep mining strip mining |
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density
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the amount in a given volume m/v
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4 spheres of earth
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hydrosphere -water
atmosphere-gasses geosphere-rock biosphere- all living things |
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weight
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the pull of gravity on the mass of an object
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