Year 9 Science · Unit 1 · Lesson 19

Public Health and Prevention

Foundation Worksheet

Name

Date

Class

Learning Goals

Recall key milestones in the history of public health
Distinguish between primary, secondary, and tertiary prevention
Identify Australian public health strategies and the diseases they target

Warm Up

Order the steps

Number the events from 1 to 7 to show the correct chronological order. Event 1 = what happened first.

Order	Event
	Australia introduces the National Immunisation Program (NIP) to provide free childhood vaccines
	John Snow removes the Broad Street pump handle in London after mapping cholera cases to a contaminated water source
	Australia becomes the first country in the world to introduce plain packaging for tobacco products
	Louis Pasteur and Robert Koch establish germ theory, microorganisms cause disease
	Edward Jenner develops the first smallpox vaccine using cowpox material
	Major cities begin constructing sewage treatment systems and piped clean water infrastructure
	Australia introduces mandatory seatbelt laws, reducing road deaths by approximately 40%

Your Turn

Sort it!

Write each public health measure from the pool into the correct prevention level box. Each item belongs in exactly one category.

Childhood vaccination BreastScreen Australia mammogram Cardiac rehabilitation program Mosquito net distribution Cervical Screening Test (every 5 years) Slip Slop Slap campaign Physiotherapy after a stroke FOBT bowel cancer test (NBCSP) Plain packaging on cigarettes Diabetes medication management

Primary prevention
(prevent disease occurring)

Secondary prevention
(detect disease early)

Tertiary prevention
(manage existing disease)

Show What You Know

1. Explain how John Snow's 1854 cholera investigation is an example of epidemiology. What action did he take, and what was the result?

Recall 3 marks

2. Australia's plain packaging law was introduced in 2012. Smoking rates fell from 24% to approximately 11% over the following decade. Identify whether this is primary, secondary, or tertiary prevention, and give a reason for your answer.

Recall 2 marks

Wrap Up

In one sentence, what is the main goal of public health, and how is it different from treating individual patients?