This printable word search puzzle on the topic of Human Body Systems contains 13 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.
diffusion
diaphragm
exchange
bronchi
pharynx
trachea
alveoli
sinuses
oxygen
larynx
cilia
lungs
gas