This question is too vague but I will answer it as best I'm able. If you are referring to the actual act of speaking words then it is called the manner of articulation. If you are referring to the audio waves present in the air generated by speech, then you might be looking for phonology in which these units of sound are called phonemes. On the flipside of that if you are referring to the understanding of these audio waves then it is phonetics and these units of sound are called phones. This is why it is called a telephone - it is a method of transmitting phones via telecommunication.
the scientific word for hardness is density
macro is the scientific word for big
A scientific word for facts or figures would be data.
You just did. Just change "the word scientific method..." to "the TERM scientific method". Or you could say "That's not following the scientific method."
the scientific law is science
* adjective * modifies the subject of the sentence 'novel'
The word law is a noun, a common, singular noun. Law is also an adjective (law degree, law book, etc.).
No, the word 'scientific' is an adjective, a word used to describe a noun; for example, a scientific experiment, a scientific expedition.
The word speech is a noun.
The scientific word for people is homosapiens
speech is a single syllable word.
He emphasizes the word 'honorable' in his speech.
The word "speech" has one syllable.
the scientific word for hardness is density
macro is the scientific word for big
The scientific word for leaf is "phyll."
The scientific word for stick is "twig."