What is a variable?
In this lesson we will learn about the three types of variables in scientific investigations.
What is a variable?
In this lesson we will learn about the three types of variables in scientific investigations.
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Lesson details
Key learning points
- Define a dependent, independent and control variable
- Know how to plan a 'fair test'
- Identify the variables in a range of experiments
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This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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3 Questions
Q1.
Which variable do we observe or measure?
control variables
independent variable
Q2.
Which variable is the one you would change in an investigation?
control variables
dependent variable
Q3.
Which variables do we need to keep the same, in order to make a scientific investigation a fair test? (The clue here is there are more than one of these variables!)
dependent variable
independent variable