Unit 1, list 1 Flashcards
Quantitative
involving the measurement of quantity or amount.
Qualitative
measured by the quality
Trials
The act of trying or testing in any manner
Empirical evidence
information acquired by observation or experimentation
Observation
an act or instance of noticing or perceiving and the acquisition of information from a primary source
Model is science
a representation of a phenomenon, object, structure, or system.
Analogy
similarity of function and superficial resemblance of structures that have different origins.
Data
a collection of information gathered by observations, measurements, research or analysis.
Prototype
the ancestral or primitive form of a species or other group; an archetype
Hypothesis
An idea that proposes a tentative explanation about a phenomenon or a narrow set of phenomena observed in the natural world.
Variable
anything that can change or be changed within an experiment
Procedure
A biological process is completed by a specific collection of molecular activities
Precision
how close measurements of the same item are to each other.
Accuracy
how close a measurement is to the true or accepted value.
Scientific method
the process of objectively establishing facts through testing and experimentation
Control
an element that remains unchanged or unaffected by other variables
Constant
The factors that do not change during the experiment.
Predict
a specific statement about what will occur in a particular research investigation
Infer
the process of drawing conclusions based on evidence and reasoning
Independent variable
the variable that is manipulated during an experiment
Dependent variable
what you measure in the experiment and what is affected during the experiment.
Manipulated variable
a factor that is purposefully and specifically changed by the experimenter
Responding variable
the part of an experiment that a scientists measures and observes closely for a change or a response.
Sample size
the number of observations or individuals included in a study or experiment
Validity
how well a scientific test or piece of research actually measures what it sets out to, or how well it reflects the reality it claims to represent.
Trends in data
general directions of data
Correlation
a statistical method used to assess a possible linear association between two continuous variables
Variability
the tendency at which traits in that population may vary
Mass
the measure of the amount of matter in a body
Volume
a physical quantity that measures the amount of three-dimensional space occupied by matter
Weight
he measure of the force of gravity acting on a body
Percent
a relative value indicating hundredth parts of any quantity
Rate
a measure of how much one quantity changes when some other quantity changes.
Ratio
a comparison between two numbers.
Line graph
a graphical display of information that changes continuously over time
Bar graph
the pictorial representation of data (generally grouped), in the form of vertical or horizontal rectangular bars, where the length of bars are proportional to the measure of data
Pie graph
a type of graph that represents the data in the circular graph
Scatterplot
graphs that are used to determine if there is a relationship between two variables
Claim
statements made in science based on an experiment
Evidence
evidence that serves to either support or counter a scientific theory or hypothesis
Reason
why something happens
theory
a well-substantiated explanation of an aspect of the natural world that can incorporate laws, hypotheses and facts.
Bias
a flaw in the study design or the method of collecting or interpreting information
Testable question
How much force is needed to keep water from expanding as it freezes?
Non-testable question
What happens when water expands as it freezes?
