This printable word search puzzle on the topic of Human Body Systems contains 19 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.
CARBONDIOXIDE
BRONCHIOLES
EXHALATION
INHALATION
DIAPHRAGM
CONTRACT
WINDPIPE
BRONCHUS
TRACHEA
ALVEOLI
BRONCHI
OXYGEN
MUSCLE
RELAX
MOUTH
LUNGS
RIBS
NOSE
AIR