1.
standard used for comparison of test results in an experiment
2.
law statement about what happens in nature that seems to be true all the time; does not explain why or how something happens
3.
variable that, as it changes, affects the measure of another variable
4.
can be used to represent an idea, object, or event that is too big, too small, too complex, or too dangerous to observe or test directly
5.
occurs when a scientist’s expectations change how the results of an experiment are viewed
6.
organized procedure for testing a hypothesis; tests the effect of one thing on another under controlled conditions
7.
method scientists follow to investigate problems; includes stating a problem, forming a hypothesis, researching and gathering information, testing a hypothesis, analyzing data, and drawing conclusions
8.
explanation of things or events based on knowledge gained from many observations and investigations
9.
possible explanation for a problem using what is known and what is observed
10.
variable that changes as a result of changes in the other variables
11.
in an experiment, a variable that does not change
12.
quantity that can have more than a single value, can cause a change in the results of an experiment
