Your conclusions summarize how your results support or contradict your original hypothesis. Discussion of the research project includes suggestions for improvements, refinement, and/or new approaches to experimental design and includes a discussion of future research questions. Conclusions are based on the analysis and are clearly related to the problem and previous studies.
Abstract: An abstract is a shortened version of the paper and should contain all of the highlights of your study, including: objectives of your study, how the study was conducted, your results, and the significance of the results.