variable, A value that can change or be different in an investigation. There are three types of variables – independent, dependent and controlled., testable question, A question that has a measurable outcome. A testable question can be answered through a scientific investigation., independent variable, Something that is changed in an investigation that is being tested. The independent variable usually has an effect on the dependent variable., dependent variable, Something that is measured in an investigation. The dependent variable is usually affected by changes in the independent variable., controlled variables, Something that is kept the same in an investigation. Ensuring the controlled variable doesn't change lets scientists conduct fair tests., fair test, An investigation in which only one variable is changed. In a fair test, one variable is changed while its effect on another variable is measured., data, Pieces of information obtained by observation or measurement., outlier, a piece of data in a set of results that is very much bigger or smaller than the next nearest piece of data. Eg: 10cm is much smaller than 20cm and 21cm, so 10cm is an outlier., quantitative data, Data of the quantities of things we can count or measure. Examples of quantitative observations include number, length, mass, temperature or time., qualitative data, Data of the qualities of what we can see, hear or touch. Examples of qualitative observations include shape, colour, hardness or flavour..

Scientific Method

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