This printable word search puzzle on the topic of Human Body Systems contains 15 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.
cellular respiration
negative feedback
organic compound
organ system
homeostasis
absorption
excretion
digestion
alveola
mineral
enzyme
tissue
villi
organ
cell