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ScienceVocabulary
Mr. King - 9/30/12
| Question | Answer |
|---|---|
| hypothesis | suggested explanation for an observation |
| independent variable | the factor that is manipulated by the experimenter |
| dependent variable | factor that can change if the independent variable is changed |
| control | standard for comparison in an experiment |
| theory | an explanation based on many observations during repeated experiments that is valid only if consistant w/ observations, makes testable predictions, & is simples explanation |
| S.I. | Systeme International d'Unites (standard system of units) |
| Scientific notation | a type of shorthand used by scientists in which a number is expressed as a multiplier and a power of ten |
| Volume | the size of a body or region in 3D space |
| Density | Measure of the amount of mass contained within a set volume. (D=m/v) |
| Natural Law | an explanation of how nature "works" = scientific fact |
| Length | The standard SI unit is meters |
| Meter | SI unit of length |
| Area | measurements having units such as square meters |
| mass | the amount of matter in an object |
| weight | a measure of gravitational force acting on an object |
| centi- | 1/100 of b.u. [.01 x b.u.] |
| deci- | 1/10 of b.u. [.1 x bu] |
| milli- | 1/1000 of bu [.001 x bu] |
| kilo- | 1000 x bu |
| hecto- | 100 x bu |
| deca- | 10 x bu |
| Tera- | 1,000,000,000,000 x bu [1x10*12] |
| Giga- | 1,000,000,000 x bu [1x10*9] |
| Mega- | 1,000,000 x bu [1x10*6] |
| Micro- | .000,000,1 x bu [1x10 *-6} |
| nano- | .000,000,000,1 x bu [1x10*-9] |
| pico- | .000,000,000,000,1 x bu [1x10*-12] |
| Liter | Unit of Volume |
| Gram | Unit of mass |
| Celsius/Kelvin | Units of temperature |
| Temperature | Measured in Celsius & Kelvin (+ fahrenheit) |