Science · Year 5 · Animals Including Humans · Spring Term

Ageing and Later Life

Understanding factors that affect respiratory health, including air quality and the effects of smoking.

• National Curriculum Attainment Targets
• NC-KS2-Science-Y5-AIH-4

About This Topic

Ageing brings gradual changes to the human body that Year 5 students explore, such as reduced muscle strength, stiffer joints, weaker bones, dulled senses, and lower lung capacity. These affect daily activities and respiratory health, with poor air quality causing inflammation and smoking leading to tar buildup, emphysema, and higher infection risks. Students compare elderly bodies to young adults, noting slower reflexes and breathlessness, while identifying habits like exercise, fresh air, and quitting smoking to maintain health.

This topic supports the Animals including Humans unit and NC-KS2-Science-Y5-AIH-4 by linking life stages to environmental factors. It fosters empathy, decision-making, and evidence evaluation as students weigh health choices.

Active learning suits this topic well. Students build lung models with balloons to feel capacity differences, survey local pollution, or interview elders for personal stories. These approaches make changes tangible, spark discussions, and connect science to lives, deepening understanding and retention.

Key Questions

1. What are some of the changes that happen to the human body as people grow older?
2. Describe how an elderly person's body might be different from a young adult's body.
3. Can you name three things older people can do to help their bodies stay healthy?

Learning Objectives

• Compare the physiological changes in respiratory function between younger adults and elderly individuals.
• Explain the impact of air pollutants, such as particulate matter, on lung tissue inflammation.
• Analyze the long-term effects of smoking on lung capacity and susceptibility to respiratory infections.
• Identify at least three lifestyle choices that promote respiratory health in later life.

Before You Start

The Human Lungs and Breathing

Why: Students need a basic understanding of how healthy lungs work before exploring changes associated with ageing and environmental factors.

Healthy Habits for the Body

Why: Prior knowledge of general health practices provides a foundation for discussing specific habits that support respiratory health in later life.

Key Vocabulary

Lung Capacity	The total amount of air that the lungs can hold. This often decreases with age.
Emphysema	A lung condition that causes shortness of breath, often caused by smoking, where the air sacs in the lungs are damaged.
Tar	A sticky, brown substance found in cigarette smoke that coats the lungs and can cause damage and disease.
Particulate Matter	Tiny particles in the air, often from pollution, that can be inhaled and irritate or damage the lungs.

Watch Out for These Misconceptions

Common Misconception

All older people become frail and ill inevitably.

What to Teach Instead

Lifestyle choices like diet and activity influence health greatly. Interviews with active elders and class discussions reveal variability, helping students adjust views through shared evidence.

Common Misconception

Smoking only damages the smoker's lungs right away.

What to Teach Instead

Long-term effects include tar accumulation and reduced capacity, plus second-hand harm. Balloon models with 'smoke' residue demonstrate buildup, with peer explanations reinforcing accurate timelines.

Common Misconception

Lung function stays the same from youth to old age.

What to Teach Instead

Capacity declines due to muscle weakening. Hands-on model comparisons let students measure and feel differences, building precise mental models via group trials.

Active Learning Ideas

Modelling: Lung Capacity Changes

Provide bottles, balloons, and straws for students to build lung models. Compare a 'young' full balloon with an 'aged' partially taped one to show reduced expansion. Add cotton wool as 'tar' from smoking and measure breath volume differences before discussing observations.

35 min·Small Groups

Survey: School Air Quality Audit

Equip groups with settling dust collectors or simple particle testers. Map pollution sources like traffic or litter around school. Analyse data to link findings with respiratory risks and propose improvements.

45 min·Small Groups

Interview: Family Ageing Stories

Pairs create question lists on body changes and health tips. Conduct phone or in-person interviews with older relatives. Collate responses into a class chart for shared insights.

50 min·Pairs

Formal Debate: Healthy Habits Role Play

Assign roles as elderly characters facing choices like smoking or exercising. Groups prepare arguments, perform short skits, then vote on best actions with reasons.

40 min·Small Groups

Real-World Connections

• Respiratory therapists work in hospitals and clinics to help patients with breathing difficulties, often advising elderly patients on managing conditions like COPD, which can be worsened by smoking and pollution.
• Public health campaigns, such as those run by the NHS, provide information and resources to help people quit smoking and reduce exposure to air pollution, aiming to improve long-term lung health across the population.

Assessment Ideas

Exit Ticket

Students write down two ways their lungs might function differently from an elderly person's. Then, they list one specific action an older person can take to protect their lungs.

Discussion Prompt

Pose the question: 'Imagine two people, one who has smoked for 40 years and one who has never smoked, both aged 70. How might their breathing be different and why?' Facilitate a class discussion, guiding students to use vocabulary like 'tar' and 'emphysema'.

Quick Check

Show images of different environments (e.g., a busy city street, a forest, a smoking room). Ask students to quickly write down one word describing the potential impact of the air quality on lungs for each image.

Frequently Asked Questions

What body changes with ageing does Year 5 science cover?

Students learn about decreased lung capacity, stiffer joints, weaker muscles, and sensory decline, comparing these to young adult bodies. They connect changes to respiratory health, noting how exercise and clean air help. Real examples from guests or videos make concepts relatable, aligning with curriculum standards.

How does smoking affect older people's respiratory health?

Smoking deposits tar, destroys lung cilia, and worsens age-related capacity loss, leading to chronic coughs and breathlessness. Students model this with balloons and 'smoke' to see restrictions. Lessons emphasise quitting benefits at any age, supported by health stats discussions.

How can active learning help teach ageing and respiratory health?

Activities like lung balloon models let students physically experience capacity changes, while air quality surveys connect local data to risks. Interviews with elders add personal relevance, and role plays build decision skills. These methods engage kinesthetic learners, promote collaboration, and make abstract ideas concrete for better recall.

Ideas for linking air quality to ageing in Year 5?

Conduct schoolyard pollution audits with dust traps, then discuss how particulates inflame ageing lungs more. Compare clean vs polluted model lungs. Extend to habits like tree planting, tying observations to health protection and curriculum outcomes.