science vs. engineering

do you know the difference?
Science
From Cambridge: (knowledge from) the careful study of the structure and behaviour of the physical world , especially by watching , measuring , and doing experiments , and the development of theories to describe the results of these activities
From Webster's: knowledge about or study of the natural world based on facts learned through experiments and observation; knowledge or a system of knowledge covering general truths or the operation of general laws especially as obtained and tested through scientific method.

Engineering
From Cambridge: to design and build something using scientific principles
From Webster's: to plan, build, or manage (something) by using scientific methods


If you say you're 'going to try science, know that it implies you'll be testing an assumption or answering a question using a systematic approach; most likely people mean you're going to engineer something, which by definition is using science to some end.

Science: "I think a styrofoam raft will float but a lead one will not" and then you build both to assess.
Engineering: "I'm going to build a styrofoam raft because some people in the past have determined that it's better" and then you embark on a river cruise.