Stuff
Information obtained by using the senses or scientific instruments.
Observation
A question that can be investigated using scientific methods.
Research question
A systematic process used to answer a scientific question.
Investigation
How closely repeated measurements agree with each other.
Reliability
A smaller group selected to represent a larger population.
Sample
A conclusion or interpretation based on observations and evidence.
Inference
A factor that can change during an investigation.
Variable
Recorded information collected during an investigation.
Data
The estimated range within which the true value is likely to lie.
Uncertainty
A relationship between two variables in which changes in one are associated with changes in another.
Correlation
Information or data used to support or challenge a scientific explanation.
Evidence
The variable deliberately changed by the investigator.
Independent variable
Descriptive data that are not expressed primarily as numbers.
Qualitative data
A difference between a measured value and the accepted or true value.
Error
A general pattern or direction shown by data.
Trend
A testable proposed explanation for an observation or question.
Hypothesis
A factor kept constant so it does not affect the results.
Controlled variable
A quantitative determination of the size or amount of something.
Measurement
The estimated range within which the true value is likely to lie.
Redliability
A simplified representation used to describe, explain or predict a system or process.
Model
A statement about what is expected to happen under particular conditions.
Prediction
A comparison used to determine whether an experimental treatment has an effect.
Control
How close a measurement is to the accepted or true value.
Accuracy
A systematic influence that can unfairly affect an investigation or interpretation.
Bias
A statement describing a consistent pattern or relationship in nature.
A statement describing a consistent pattern or relationship in nature.