ICAS Science Practice Questions - International Competitions And Assessments For Schools - Science Exam

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A student wants to test whether plants grow taller with more sunlight. She puts one plant on a sunny windowsill and one in a dark cupboard. To make this a fair test, what must she keep the same for both plants?

Water amount, plant type and pot size The amount of sunlight each plant receives Only the colour of each plant pot Nothing at all; the test is already completely fair

Correct Answer:

Water amount, plant type and pot size

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