Question

a group of student scientists wanted to find out about the water in the drinking fountains at school. they wanted to answer this question: what is the quality of the water in the drinking fountains? the students measured the mineral content, the ph, the density and the clarity of the water. which of the following best explains the scientists plans? the scientists are making observations. the scientists are conducting an investigation. the scientists are conducting a controlled experiment. the scientists are conducting both an investigation and a controlled experiment.

Explanation:

The students are measuring multiple aspects of water quality such as mineral content, pH, density and clarity. This is an investigation. They are not just making observations as they are actively measuring values. A controlled experiment would involve a control group and experimental group with one variable being changed, which isn't indicated here. So they are conducting an investigation.

Answer:

The scientists are conducting an investigation.