The Immune System
Science · The Human Body · conceptual
Know that the body has an immune system that protects against illness: the skin acts as a barrier, white blood cells identify and destroy germs (bacteria and viruses), and vaccines train the immune system to recognise specific diseases before they cause illness
What mastery looks like
- Describe the skin as the body's first line of defence against germs
- Explain that white blood cells detect and fight bacteria and viruses inside the body
- Describe how vaccines work: they contain weakened or inactive germs that train the immune system to recognise the real disease
Check your understanding
Can The Immune System explain how their body fights off germs — and why getting a vaccine helps protect them from getting sick?
Prerequisites
Required first