Your mom. no
The term supernatant scientifically refers to lying above a precipitate or sediment. Supernatant scientifically also refers to floating on the surface of a liquid.
The term that describes the distance from the crest to the trough of a wave is called the amplitude.
"Menstrology" is not a recognized term. It may be a play on the words "menstruation" and "astrology," but it is not a scientifically validated concept.
In the last boss, the crest is an hourglass. But, if you mean the other crest, it's the Triforce.
5
which crest if you mean the triforce or hourglass, you have to draw it on the door, if you mean the sacred crest, it is past the first red door, the one you draw the hourglass
It's not an idiom. It means just what it says -- something is on the crest of a wave. The crest is the top of the wave.
The crest is the term that refers to the highest point of a wave.
it is totally wrong for human to bear twins, i mean scientifically.
False
Not sure what you mean by "scientifically funny", but a joke can be both scientific, i.e. about some science topic (and perhaps even scientifically accurate), and funny.
I assume you mean, the crests of a wave. That distance is called the wavelength.