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Scientific Investigations Terms

Mrs. Mahan, NHS, 2010-2011
STUDY
PLAY
Accuracy
How well the results of an experiment agree with the accepted value
Analysis
This is a process of interpreting experimental results.
Bar Graph
This is a graphical means of quantitative comparison by rectangles with lengths proportional to the measure of the data or things compared
Beaker
This is a container used for mixing or heating of chemical solution
Conclusion
This is an answer deduced from the analysis of data
Data Set
This is a compilation of information, usually quantitative, that represents measures of a variable or set of variables.
Dependent Variable
In an experiment, the condition that results from changes in the independent variable.
Equipment Error
This is an error due to some type of equipment malfunction. Often the calibration of the instrument has not been carried out or is faulty.
Evidence
This is data from an experiment, which is used to verify or reject the original hypothesis in the conclusion.
Experiment
Scientific procedure followed to obtain results for analysis. This is also a means to test a hypothesis.
Experimental Variable
This is the condition which is changed within experiment
Flask
This is a container used for storage of chemical solutions.
Graduated Cylinder
This is a container used for measurement of the volume of a liquid.
Graph
This is the image obtained by plotting all the points of an equation or inequality. A visual representation of scientific data.
Hypothesis
This is a testable prediction of the outcome of scientific processes based on analysis
Independent Variable
This is the manipulated variable in an experiment or study whose presence or degree determines the change in the dependent variable. When graphed this is graphed usually on the horizontal axis.
Inquiry
This is the act of trying to find the answer to an unknown question by the use of experimentation and research.
Investigation
This is the process of researching or studying a concept. Examination, inquiry
Lab Apron
This is what is worn during scientific investigations to protect the clothes and body.
Lab Safety
This is the act of being responsible while working on a scientific investigation; following directions, wearing apron and goggles, knowing the location of emergency equipment, etc.
Legend
This is used to identify range, data series, and variables within a graph
Line Graph
A graph that is represented by points connected by segments
Material Safety Data Sheet
This is an official lab safety form that tells the important properties of chemical substances, such as reactivity, health risk, and flammability
Meniscus
This is the bottom of the curve of a fluid formed due to adhesion
Microscope
Equipment used to magnify and observe small objects
Observation
This is a process of watching an experiment and noting what occurs
Pie Chart
This is the preferred method of representing percentage data
Precision
This is the ability of a measurement to be reproduced consistantly
Procedures
This is the process of steps taken in completing a task, such as a lab investigation.
Qualitative Data
This is information from an experiment, such as observations or behaviors, that cannot be recorded with a numerical value
Quantitative Data
This is information from an experiment that can be assigned a number or a quantity and can often be used to construct a graph.
Research
This is what people do when they are searching for information. People often look in more than one location.
Research Question
This is the start of scientific research. It usually starts with: How, What, When, Who, Which, Why, or Where
Ruler
This is a straight measuring device, marked at intervals, used to measure distances
Safety Goggles
These are what is worn in the lab to protect the eyes
Scientific Law
A phenomenon of nature that has been proven to invariably occur whenever certain conditions exist.
Scientific Method
A process used to gather evidence and lead to understanding
Test Tube
This is a small container used for observation of chemical reactions.
Theory
This is a scientific conclusion based on much supporting evidence
Thermometer
Equipment used to measure the temperature of an object
Toxin
This is a poisonous substance that is produced by living cells or organisms and is capable of causing disease when introduced into living tissues.
Validity
This is the degree at which a test measures what it is intended to measure.
X Axis
In a line graph comparing two variables, the independent variable is plotted along this axis
Y Axis
In a line graph comparing two variables, the dependent variable is plotted along this axis
Bias
Personal and unscientific judgment that may alter the results of an experiment
Control
an experiment, the standard in which all of the conditions are kept the same
Data
Information obtained from experiments, sometimes called experimental results
Safety Symbol
Symbol that warns you about a danger that may exist from chemicals, electricity, heat, or experimental procedures
Sample
Part of a population that is studied to inform about the inform
Scientific Experiment
Procedure that tests a hypothesis by collecting information under controlled conditions
Variable
A condition of an experiment that is either changed or held constant