This printable word search puzzle contains 12 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.
Circulatory System
Carbon-dioxide
Oxygen-rich
Capillaries
Hemoglobin
Platelets
Arteries
Alveoli
Center
Blood
Heart
Veins