This printable word search puzzle on the topic of Human Body Systems contains 15 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.
White Blood Cells
Immune Response
Immune System
Immunization
Bone Marrow
Lymph Nodes
Leukocytes
Infection
Bacteria
Flu Shot
Disease
Spleen
Thymus
Germs
Virus