This printable word search puzzle on the topic of Human Body Systems contains 12 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.
White Blood Cell
Immune System
Immunization
Antibodies
Vegetable
Invaders
Bacteria
Protect
Healthy
Antigen
Fruit
Virus