Flashcards - Praxis Middle School Science: Scientific Methodology

Flashcards - Praxis Middle School Science: Scientific Methodology
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observations
Observation is the active acquisition of information from a primary source
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mode
The mode is the value that appears most often in a set of data
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median
The median is the value separating the higher half of a data sample, a population, or a probability distribution, from the lower half
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mean
In mathematics, mean has several different definitions depending on the context
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sample
In statistics and quantitative research methodology, a data sample is a set of data collected and/or selected from a statistical population by a defined procedure
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precision
Precision is a description of random errors, a measure of statistical variability
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chemical
A chemical substance is a form of matter that has constant chemical composition and characteristic properties
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microscopes
A microscope is an instrument used to see objects that are too small for the naked eye
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bar graph
A bar chart or bar graph is a chart that presents grouped data with rectangular bars with lengths proportional to the values that they represent
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experiment
An experiment is a procedure carried out to support, refute, or validate a hypothesis
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analysis
Analysis is the process of breaking a complex topic or substance into smaller parts in order to gain a better understanding of it
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scientific method
The scientific method is a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge
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hypothesis
A hypothesis is a proposed explanation for a phenomenon
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26 cards in set
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hypothesis
A hypothesis is a proposed explanation for a phenomenon
scientific method
The scientific method is a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge
analysis
Analysis is the process of breaking a complex topic or substance into smaller parts in order to gain a better understanding of it
experiment
An experiment is a procedure carried out to support, refute, or validate a hypothesis
bar graph
A bar chart or bar graph is a chart that presents grouped data with rectangular bars with lengths proportional to the values that they represent
microscopes
A microscope is an instrument used to see objects that are too small for the naked eye
chemical
A chemical substance is a form of matter that has constant chemical composition and characteristic properties
precision
Precision is a description of random errors, a measure of statistical variability
sample
In statistics and quantitative research methodology, a data sample is a set of data collected and/or selected from a statistical population by a defined procedure
mean
In mathematics, mean has several different definitions depending on the context
median
The median is the value separating the higher half of a data sample, a population, or a probability distribution, from the lower half
mode
The mode is the value that appears most often in a set of data
observations
Observation is the active acquisition of information from a primary source
pie chart
A pie chart is a circular statistical graphic, which is divided into slices to illustrate numerical proportion
ecological validity
In research, the ecological validity of a study means that the methods, materials and setting of the study must approximate the real-world that is being examined
reliable across samples
Reliability in statistics and psychometrics is the overall consistency of a measure
graduated cylinder
A graduated cylinder, measuring cylinder or mixing cylinder is a common piece of laboratory equipment used to measure the volume of a liquid
hot plate
A hot plate is a portable self-contained tabletop small appliance that features one, two or more electric heating elements or gas burners
liter
The litre or liter is an SI accepted metric system unit of volume equal to 1 cubic decimetre , 1,000 cubic centimetres or 1/1,000 cubic metre
metric system
The metric system is an internationally agreed decimal system of measurement
Scientific notation
Scientific notation is a way of expressing numbers that are too big or too small to be conveniently written in decimal form
significant figure
The significant figures of a number are digits that carry meaning contributing to its measurement resolution
Bunsen burner
A Bunsen burner, named after Robert Bunsen, is a common piece of laboratory equipment that produces a single open gas flame, which is used for heating, sterilization, and combustion
degrees Celsius
Celsius, also known as centigrade, is a scale and unit of measurement for temperature
meter
The metre, or meter , is the base unit of length in the International System of Units
data
Data is a set of values of qualitative or quantitative variables

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