Explain scientific variables and fair testing with this simple, eye catching PowerPoint. The PowerPoint explains how to identify independent, dependent and controlled variables in an investigation using a variable grid. the presentation then explains how to use identified variables to formulate a clear and measurable investigation question using a scaffold. The PowerPoint was designed for use with the Australian Curriculum Science Year 6, but is not grade specific as it uses simple easy to understand examples based on common scientific inquiries. The PowerPoint also includes an opportunity for students to brainstorm a question and variables for their own fair test as a shared or independent activity. Great for use in student lead inquiry!