HS deck as of 10.14.13 Flashcards
Science
The knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested.
Empirical evidence
The observations, measurements, and other types of data that people gather and test to support and evaluate scientific explanations.
Theory
Well-supported explanation about the natural world
Model
A pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept.
Law
Describes a basic principle of nature that always occurs under certain conditions
Experiment
An organized procedure to study something under controlled conditions.
Observation
The process of obtaining information by using the senses
Hypothesis
An educated guess about a problem
Variable
Any factor that can change in an experiment, observation, or model.
Data
Information gathered by observation or experimentation that can be used in calculating or reasoning.
Dependent variable
Outcome variable–what you measure in an experiment–what is affected
Independent variable
Test variable–you have control over it
Mean
Sum of all values in a data set, divided by number of values in data set. (Average)
Median
Middle value in a data set, when the values are arranged in order from least to greatest
Mode
The value occurring most frequently in a data set