One reason that multiple approaches are often taken to answer a testable question is that scientists have different educational backgrounds and experiences.
• want to determine the single best way to find an answer.
often look for the quickest way to answer the question.
get tired of using the same approach every single time.

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."

if the temperature drops and becomes cool

then the atmosphere can be freezing as the water vapor in the air is at maximum (100%) and can be severely cold

also can be snowing lightly as the moisture in the air will start to solidify

and btw this is not chemistry but