Year 9 Science · Unit 1 · Lesson 14
Foundation Worksheet
Learning Goals
Match each term to its definition
Draw a line connecting each term on the left to its correct definition on the right. Or write the matching letter next to each term.
| Term | Your answer | Definition |
|---|---|---|
| Pathogen | A. The body's first physical barrier against disease, e.g. skin and mucus. | |
| Antibiotic resistance | B. When bacteria evolve so that drugs can no longer kill them. | |
| Herd immunity | C. A protein on the surface of a pathogen that triggers an immune response. | |
| Non-infectious disease | D. A microorganism that causes disease in a host. | |
| Antigen | E. Protection of unvaccinated individuals when enough of a population is immune. | |
| First line of defence | F. A disease with no pathogen that cannot spread between people. | |
| Epidemic | G. A rapid spread of disease affecting many people in a region at the same time. | |
| Koch's postulates | H. A set of rules used to prove that a specific microorganism causes a specific disease. |
Sort it!
Write each item from the pool into the correct theme box. Each item belongs to exactly one theme from Unit 1.
Body Defences (Lines 1–3)
Disease Treatment
Non-Infectious Disease
Public Health / Epidemiology
1. State what a depth study investigation requires you to do. Your answer should mention a question, evidence, and a conclusion.
2. Write a correct scientific hypothesis using if–then–because format for the following question: "Does smoking increase a person's risk of cardiovascular disease?"
Wrap Up
In one sentence, what was the main idea of this lesson?