Final answer:
A systematic observation collects data to answer scientific questions, forming part of the scientific method which includes formulating and testing a hypothesis through controlled experiments.
Step-by-step explanation:
The statement that best describes a systematic observation is: Systematic observations collect data to answer scientific questions. Systematic observations are an essential part of the scientific method, which is a process for gathering data and processing information. It begins with an observation, often made with the help of instruments that extend human senses, followed by formulating a hypothesis. The hypothesis is a tentative explanation for the observations, which is then tested through experiments. Experiments are systematic observations or measurements made under controlled conditions, enabling scientists to determine the validity of the hypothesis.