The density of an object is 1.23 g/cm3. in which of the following materials will it float
a. water
b. olive oil
c. ethyl alcohol
d. citric acid

some think that theories become laws, but theories and laws have separate and distinct roles in the scientific method. a law is a description of an observed phenomenon in the natural world that hold true every time it is tested. it doesn't explain why something is true; it just states that it is true.

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.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue