Immune System: Defending Against Germs
This worksheet introduces white blood cells, antibodies, and the lymphatic system. Learners label immune organs and sequence how the body fights bacteria and viruses. A matching game reinforces key terms like pathogen and vaccine.
This asset is part of Free Printable Science Worksheet: Body Systems for Kids published by SheetForge. Licensed under CC BY 4.0 — Free for personal use. Free to use with attribution.