This printable word search puzzle on the topic of Human Body Systems contains 18 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.
inflammatory response
germ theory of diseases
kochs postulates
vaccination
risk factor
carcinogen
antibiotics
allergies
histamine
pathogens
immunity
disease
passive
asthma
antigen
vectors
tumor
fever