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mrs.gregos
science exam
| Question | Answer |
|---|---|
| independant variable | the factor that is changed |
| dependant variable | the factor that is changed or meaured because of the independant variable |
| repetition | when an activity is repeated by the same person |
| replication | when an activity is repeated by a diffrent person |
| model | can be a visual or mathematical representation of an object or system |
| model limitations | how much a model can do |
| theory | a well supported explaination of nature |
| law | scientific theories attempt to explain how things happen |
| tempeture | a measure of the average kinetic energy of all the particles in an object |
| law of conservation of energy | states that energy cannot be created or distroyed |
| convection | the movement of matter that result in diffrence in dencity caused by variations in tempature |
| evidence for contenental drift | the earths peices can fit in to the creases of the diffrent continent |
| rock cycle | when rocks change from on state to an other |
| wave | a disturbance that transparts energy from one place to another with out the object moving the entire distance |
| lithosphere | the outermost rigid layer of the earth |
| divergent boundries | plates that pull apartand make a normal fault |
| connvergent boundries | plates that collide and make reverse faults |
| weathering | the process by which water, wind, and ice change in tempeture and breaks down rock |
| erosion | the process by which sediment is moved from one place to another |
| deposition | the process by which sediment has come to rest |
| cementation | the process by which sediment is compacted togeher |
| hot spot | a location where a column of extremely of mantle rock (mantle plume) rises through the athenoshere |