The students observation was that the artificial fertilizer caused his plants to grow faster than unfertilised soil and his inference is that he would want to know if natural compost would have the same effect as the fertilizer on his plant.
What is observation and inference?
Observation is defined as the step in scientific research that involves the gathering of information from an observed object under study.
Inference is defined as the process of drawing conclusions based on evidence and reasoning in a research work.
For the student to be able to draw a conclusion on this experiment, he would have to set up a plant with the natural compost soil and another plant with unfertilised soil as his control.
Learn more about compost soil here:
https://brainly.com/question/25342752
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