This printable word search puzzle on the topic of Human Body Systems contains 20 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.
reassortment
inflammatory
macrophages
penicillin
microglia
rotavirus
histamine
estrogen
pandemic
protease
synapses
pathogen
antibody
antigen
vaccine
enzymes
allergy
clones
plasma
immune