Accuracy
How close a measurement is to the true or accepted value
Anomalous data
Data that does not fit with the rest of a data set
Estimate
An approximation of a number based on reasonable assumptions
Density
The measurement of how much mass of a substance is contained in a given volume
Feedback
Output that changes a system or allows the system to adjust itself
Field
Any area outside of the laboratory
Graph
A picture of information from a data table; shows the relationship between variables
Input
Material, energy, or information that goes INTO a system
Linear graph
A line graph in which the data points yield a straight line
Mass
A measure of how much matter is in an object
Mean
The numerical average of a set of data
Median
The middle number in a set of data
Meniscus
The curved upper surface of a liquid in a column of liquid
Metric system
A system of measurement based on the number 10
Mode
The number that appears most often in a list of numbers
Model
A representation of a complex object or process, used to help people understand a concept that they cannot observe directly
Non-linear Graph
A line graph in which the data points do not fall along a straight line
Output
A material, energy, result, or product that comes OUT of a system
Percent error
A calculation used to determine how accurate, or close to the truth value, an experimental value really is
Precision
How close a group of measurements are to each other
Process
A sequence of actions in a system
Range
The difference between the greatest number and the least value in a set of data
Safety symbol
A sign used to alert you to possible sources of accidents in an investigation
SI
The basic units of the metric system
Scientific figures
All the digits in a measurement that have been measured exactly, plus one digit whose value has been estimated
System
A group of related parts that work together to perform a function or produce as result
Volume
The amount of space that matter occupies
Weight
A measure of the force of gravity acting on an object