This printable word search puzzle on the topic of Psychology & Sociology contains 12 hidden words in a 24x24 letter grid. Words go horizontally, vertically, backwards, and diagonally. This word search is also available to download as a Microsoft Word document or a PDF.
Paradoxical sleep
Sleep spindles
Fourth stage
Second stage
Alpha waves
Brain waves
Delta waves
First stage
Third stage
NREM
EEG
REM