What does investegation mean in science?

You have to state whether or not your hypothesis was supported by the experiment and then explain why or why not. e.g. The hypothesis, if the concentration of the hydrochloric acid is increased, the change in weight of the calcium carbonate will increase, was supported by the experiment that was conducted. There was a notable difference in the change in weight of the calcium carbonate between the different concentrations. The data was reliable as the data was consistent over the three trials and it supported the hypothesis, which was backed by scientific explanation. Acids with a higher concentration contain more acidic particles. Because of this, the reaction was more likely to happen and happened over a larger amount of the surface area of the calcium carbonate. There were no anomalies in the data. As stated previously, the data was consistent over the three trials.

Make sure you explain how reliable the data was and why or why not