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.
excretion
diffusion
diaphragm
nephrons
kidneys
bladder
ureters
bronchi
alveoli
trachea
pharynx
exhale
inhale
water
urine
mouth
Lungs
salt
nose
ribs