chapter one vocab cards Flashcards
bias
when what the scientist expects changes how the results are viewed
model
represents an idea event or object to help people understand it
theory
an explanation of things or events based in knowledge gained from many observations and investigations
scientific law
a statement about what happens in nature and that seems to be true all the time
Technology
the application of science to help people
Scientific method
an organized set of investigation procedures
Hypothesis
a possible explanation for a problem using what you know and what you observe
Variable
a quantity that can have more than a single value
dependent variable
a variable who’s value changes according to the values of other variables
Independent variable
a variable who’s value does not change if the value of other variables change
Constant
a factor that does not change when other variables change
control
the standard in which test results can be compared
Standard
an exact quantity that people agree to use to compare measurements
SI
the international system of units
volume
the amount of space occupied by an object
