2. make a hypothesis about which part of the light spectrum causes the most
plant growth and which part of the light spectrum causes the least plant growth.
assume that all conditions other than the color of the light are the same for each
seed as it grows: the soil, moisture, viability of the seed, etc. state your
hypothesis in the journal.

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.