Which best desribes a theory?

Does zinc iodide prove the law of conservation of mass? Give one example of how cooperation can help organisms survive? Can you lift your own weight? What cause circuit breaker to trip when refrigerator plug in? Why only wind chill affects people but not things? How does the existence of polarity within a molecule lead to its ability to dissolve? Are atoms divided up into groups according to color? Aboriginal people were a minority and classified as Flora and Fauna why? What inaccuracy may result with tympanic thermometer? What is the name of the science center in canberra? What are the best metal conductors? How can you test microbial antagonism? All organisms are made of small building blocks called? Why ahlophytes and xerophytes posses similar adaptations? What is anything a user types in a cell called? When the equation KClO3(s) KCl(s) O2(g) is balanced the coefficient of KClO3 is .? What is the porpuse of transcription? What technology advanced cell theory? What damage does petrol do to the earth? Which degree of longitude are Islams holy cities of mecca and Medina?