An instinct is something that naturally tells you what to do. For example: a mother dog being protective of her puppies. Instinctually, she knows she has to.
Birds building a nest is an instinct, beecause they knew how to do it natuarally from the day they were born. They do not need to learn how because they automaticlly know
Facts differ from opinions because facts are things that can be proven or tested. Opinions are personal beliefs or judgements. Example of a fact in science: The Periodic Table of Elements is a...