What is a scientific question? a question that is asked by scientists only a question that is based on observations and that is testable a question that is broad and that reinforces existing knowledge a question that has a simple answer that doesn’t need to be tested

"a question that is based on observations and that is testable" A lot of science has to do with observation and testing your hypothesis.

The answer would be 'a question that is based on observations and that is testable' because if you ask a question and it's not testable, like 'I can predict I will fly to the moon', there is no purpose of it whatsoever.