Yes, LEARNS is a Scrabble word!

Letter values in Scrabble US: L 1, E 1, A 1, R 1, N 1, S 1.

Is it a valid word?

LEARNS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

gain knowledge or skills
get to know or become aware of, usually accidentally
commit to memory; learn by heart
be a student of a certain subject
impart skills or knowledge to
find out, learn, or determine with certainty, usually by making an inquiry or other effort

Also: get word, get wind, pick up, find out, get a line.

Not playable in Scrabble US: LARN.