INTERPRETATION AND REPORT WRITING
SCIENTIFIC REPORT WRITING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what are the controlled variables?
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Type of plant, amount of music, and sunlight
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Water, apple juice, milk
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Plant growth
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None of the above
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Explanation:
Detailed explanation-1: -The plant-growth experiment is an example of a factorial experiment. A factorial experiment consists of several factors (seed, water) which are set at different levels, and a response variable (plant height).
Detailed explanation-2: -When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water.
Detailed explanation-3: -Independent variable (also known as the manipulated variable is the amount of water used to grow the plant. Dependent variable (also known as responding variable) is the plant growth (plant height).
There is 1 question to complete.