17. What makes water a polar
molecule?

A water molecule, because of its shape, is a polar molecule. That is, it has one side that is positively charged and one side that is negatively charged.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.