What is some differences between fats and oils?

lipids is divided into several subgroups. one of which is triglycerides(fats and oils)

the main difference is that oils have double bonds in the carbon backbone (unsaturated) so they are liquids, while fats don't have double bonds(saturated) so they're solids.

here's some more information in the photo.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.