According to the attached Science Practical Report Format, here's what should be in those sections.
Discussion:
What do the results show?
Is there a relationship between the variables? Describe any trends.
Do any of the results appear to be inconsistent? Can you think of a reason why?
Were there any sources of error during the experiment? What effect could they have had?
How could the experiment design be improved to reduce error and/or get better results?
Can you think of a real-life use or example of these results?
Conclusion:
Was your hypothesis confirmed, supported or refuted?
Overall, what did your results show (generalize)?