Accuracy

How well the results of an experiment agree with the accepted value.

Adaptive Technology

This is any object or system that is specifically designed for the purpose of increasing or maintaining the capabilities of people. This technology belongs to the broader assistive-technology category.

Analysis

This is a process of interpreting experimental results.

Analytical balance

Equipment which digitally measures the mass of an object.

Analyze

This is to observe carefully and in detail so as to identify causes, key factors, or possible results.

Anemometer

This is a tool used to measure wind speed in miles per hour.

Assistive Technology

This is any object or system that increases or maintains the capabilities of people with or without disabilities.

Average

This is the sum of each number in a set added together and then divided by the total number in the set.

Bar graph

This is a graphical means of quantitative comparison by rectangles with lengths proportional to the measure of the data or things compared.

Barometer

Equipment used to measure atmospheric pressure

Beaker

This is a container used for mixing or heating of chemical solution.

Bias

This is an unwanted influence on a sample.

Calculation

This is determining the value or amount of something by mathematical or logical methods.

Cause

The condition or set of conditions which bring about an effect.

Collaboration

This refers to two or more people working together towards a common goal or researching a common topic.

Computer model

This is a computer program, or network of computers, that attempts to simulate an abstract model of a particular system.

Conclusion

This is an answer deduced from the analysis of data.

Control group

This is an experimental group, used as a baseline comparison, that receives all the control variables, but does not receive the independent variable treatment.

Control variable

This is a condition which remains constant, or unchanged, in an experiment.

Data collection

This is the act of writing down the required information you get from a laboratory experiment.

Data set

This is a compilation of information, usually quantitative, that represents measures of a variable or set of variables.

Data table

This is the correct method of recording numerical information from an experiment.

Database

This is an organized collection of data that has one or many uses.

Dependent variable

This is the observed variable in an experiment or study whose changes are determined by the presence or degree of one or more independent variables. When graphed, this variable is usually on the vertical axis.

Dimensional analysis

A technique of problem-solving that uses the units that are part of a measurement to help solve the problem.

Effect

The state or object brought about by a cause.

Energy pyramid

This display graphically shows the energy that is available at each trophic level in a a food chain.

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.

Extrapolation

This is the process of using a set of known data points on a graph to predict where an unknown data point outside of that range would lie.

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.

Graphing calculator

This is a type of calculator that lets your quickly visualize math. You type an equation and this tool draws it for you without complicated commands.

Hypothesis

This is a 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.

Inference

This is the process of making a prediction based on the results of prior observations of similar events.

Inquiry

This is the act of trying to find the answer to an unknown question by the use of experimentation and research.

Interpolation

This is the process of predicting the value of an unknown data point within the range of a set of known data points.

Investigation

This is the method of researching or studying a topic. Examination, inquiry…

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.

Life cycle

This is the time of development of one generation.

Line graph

A graph that is represented by points connected by segments.

Logic

This is the science of correct reasoning. The basic components are statements that can be true or false, but never both.

Manipulated variable

This is the one factor that is changed or tested by the person doing the investigation.

Mean

This is a measure of central tendency; in a set of data is what people refer to as the average.

Measurement

This is collection of quantitative data made by comparing a quantity with a standard unit. In science, the units are metric.

Measurement error

The difference between the accepted value and the experimental value.

Median

This is a measure of central tendency; it is the number in the middle of a data set.

Metric system

This is the decimal system of weights and measures based on the meter as a unit length and the kilogram as a unit mass.

Microscope

Equipment used to magnify and observe small objects.

Mode

This is the value that occurs the most frequently in a data set.

Model

A small object, usually built to scale, that represents in detail another, often larger object.

Observation

This is a process of watching an experiment and noting what occurs.

Peer review

This is the evaluation of scientific research, creative work, or performance by other people in the same field in order to maintain or enhance the quality of the work or performance in that field

PH scale

A graphical representation of the strength of an acid or base.

Physical Model

This is a physical construction that accurately represents something that is either unseen, or something that is either too small or too large to view under normal circumstances. It may also be a physical construction that represents an idea.

Pictograph

This uses pictures or symbols to represent an assigned amount of data.

Pie chart

This is the preferred method of representing percentage data.

Position-time graph

This is a line graph used to describe the motion of an object. A graphic representation of velocity. Also used to represent speed.

Precision

This is the ability of a measurement to be reproduced consistently.

Prediction

This is a statement that a particular event will occur, based on reasonable observations of prior events.

Primary source

This is a document or physical object which was written or created during the time under study. These sources were present during an experience or time period and offer an inside view of a particular event. First hand knowledge.

Problem

This is a question proposed for solution or discussion.

Problem solving

This is the process of finding a solution to a problem.

Procedures

This is the process of steps taken in completing a task, such as a lab investigation.

Proportion

This is an equation which states that two ratios are equal.

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.

Rain gauge

This is a tool used to measure the amount of precipitation in inches or centimeters.

Range

This is the difference between the smallest and the largest numbers in the data set.

Ratio

Usually expressed as a fraction, this is way of showing the relative size of two numbers, as when 24/30 is written as 4/5, meaning 24 has as many groups of 4 as 30 has groups of 5.

Research

This is what people do when they are searching for information. People often look in more than one location.

Research question

This is one of the first steps in scientific research. It usually starts with: How, What, When, Who, Which, Why, or Where.

Responding variable

This is the result of or response to changing the manipulated variable.

Results

This is the outcome.

Ruler

This is a straight measuring device, marked at intervals, used to measure distances.

Scientific Method

A process used to gather evidence and lead to understanding.

Scientific Notation

This is a shorthand way of writing very large or very small numbers, in which a number is expressed as a number between 1 and 10, times 10 raised to an exponent.

Spring scale

Equipment used to measure force

Stopwatch

This is a timing device used to measure the length of time for short events.

Technology

This is the use of scientific tools to help make things easier and better.

Test tube

This is a small container used for observation of chemical reactions.

Testable

This is word used to describe a characteristic of a hypothesis. It means you are able to experiment to see how two variables may be related.

Theory

This is a scientific conclusion based on much supporting evidence.

Thermometer

Equipment used to measure the temperature of an object.

Time-series graph

This is one type of line graph in which the independent variable is time plotted on the X axis and the dependent variable, also numerical, is plotted on the Y axis.

Trial

This is a repetition of an experiment. Scientists use multiples of these to ensure the reliability of their results.

Unit of measure

This is a standard of measure for a physical quantity and is included as part of the X and Y axes labels on a line graph.

Validity

This is the degree at which a test measures what it is intended to measure.

Variable

This is the factor which is tested in an experiment.

Water displacement

This is the most commonly used method when trying to measure the volume of an irregularly shaped object

Wind vane

This is a tool used to measure wind direction.

X axis

In a line graph comparing two variables, the independent variable is plotted along this axis.

X-Y graph

This is a type of graph where the dependent variable is plotted vs. the independent variable as unique points.

Y axis

In a line graph comparing two variables, the dependent variable is plotted along this axis.