This printable word search puzzle on the topic of Human Body Systems contains 15 hidden words in a 17x17 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.
IMMUNESYSTEM
LYMPHOCYTES
LYMPH NODES
BONE MARROW
LEUKOCYTES
AUTOIMMUNE
PARASITES
ALLERGIES
VACCINES
BACTERIA
DISEASES
VIRUSES
THYMUS
SPLEEN
CELLS