Scientific processes crossword puzzle

hello

answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

answer; motor (efferent)neurons;