Background info, literature review, identified knowledge gap, and your specific hypothesis. Detailed roadmap of your experiment.
Materials used, experimental design, data collection procedures, and statistical analysis tools. Objective presentation of data.
Your “observation” is just a specific kind of physical interaction: photons hitting your retina, triggering electrochemical cascades. You are not a special exception to physics. You are physics, all the way down.
Claiming something is completely science requires humility. Many domains are incomplete science—not because they are wrong, but because they are works in progress.