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Which comparison is appropriate for testing the effect of water quantity in colour filling?

Answer and explanation

Correct answer: Keep colour, brush pressure, speed and paper constant while changing only water quantity

The governing principle is a controlled comparison: change one variable while keeping the relevant conditions constant. Use the same colour mixture, brush, pressure, stroke speed and paper, and vary only the amount of water. Differences in flow, transparency and drying can then reasonably be attributed to water quantity. Changing several factors at once makes the result impossible to interpret clearly.

Related tags

Water ExperimentControlled ComparisonTransparencyPaint FlowColour Filling And BlendingPainting TechniquesArt EducationClass 9 Mcq

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