I agree there are differences in methodology in the Natural science which* *rely more on objective observation and controlled experiments to find patterns and laws where Social sciences deal with complex human behaviour and societies, making controlled experiments difficult or impossible. They rely more on inference, qualitative observation, and statistics, and must consider ethical and practical restrictions that natural sciences don't.
Scientific training emphasises logic and objective data, but social science involves interpreting subjective human experiences and a wider range of variables that can't be easily controlled or isolated.
A science major may find the quantitative aspects of social science (like statistics) more familiar, but they may struggle with the qualitative and interpretative methods if they haven't had training in them.
Conversely, someone from a social science background may have an easier time with the interpretative and qualitative methods but may find the highly quantitative methods of some natural sciences more challenging.
So it's no surprise there's a difference in understanding of complex human experiences.