Yes, SHOCKS is a Scrabble word!

Letter values in Scrabble US: S 1, H 4, O 1, C 3, K 5, S 1.

Is it a valid word?

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

the feeling of distress and disbelief that you have when something bad happens accidentally
the violent interaction of individuals or groups entering into combat
a reflex response to the passage of electric current through the body
(pathology) bodily collapse or near collapse caused by inadequate oxygen delivery to the cells; characterized by reduced cardiac output and rapid heartbeat and circulatory insufficiency and pallor
an instance of agitation of the earth's crust
an unpleasant or disappointing surprise
a pile of sheaves of grain set on end in a field to dry; stalks of Indian corn set up in a field
a bushy thick mass (especially hair)
a sudden jarring impact
a mechanical damper; absorbs energy of sudden impulses

Also: electric shock, electrical shock, seismic disturbance, shock absorber, ball over, blow out of the water, take aback.