Science // Organisms & Life Processes

Diet, Exercise & Lifestyle

Recognise the impact of diet, exercise, drugs, and lifestyle on the way human bodies function

Ages
10 to 11
Type
Concept
Builds on
3 topics
Leads to
1 topic
Standards
1 code

Quick check

Can the learner explain why eating well and exercising regularly helps the body stay healthy, and why drugs and smoking are harmful?

Ask this to see whether the topic is secure.

Topic // Mastery

What mastery looks like

What a learner can do once this topic is secure.
  • Describe how a balanced diet provides energy and nutrients the body needs
  • Explain the positive effects of regular exercise on the heart, muscles, and mental health
  • Describe harmful effects of drugs, alcohol, or tobacco on the body

Topic // Map

Where this fits

What to learn first and what this topic opens up, with the reason for each link. Required links come first.
  • RequiredMust come first
  • HelpfulHelps, but not essential

Before this

3 topics
  • Animal NutritionRequired

    Organisms & Life Processes // Ages 7 to 8

    Must understand nutrition before evaluating impact of diet on health

  • The Circulatory SystemRequired

    Organisms & Life Processes // Ages 10 to 11

    Must know circulatory system before understanding how diet and exercise affect it

  • Healthy Lifestyle ChoicesHelpful

    The Human Body // Ages 9 to 11

    Enrichment knowledge of lifestyle choices and health supports formal curriculum study of diet/exercise/lifestyle impact

You are here

Diet, Exercise & Lifestyle

Ages 10 to 11 // Concept

Leads to

1 topic
  • Effects of Drugs & AlcoholRequired

    Organisms & Life Processes // Ages 13 to 14

    KS3 recreational drugs (mechanisms, categories) extends KS2 recognition that drugs and lifestyle affect health

Topic // Research-informed

Teaching notes

From the Marble Skill Taxonomy. These notes have not been validated in classrooms, so treat them as a starting point for your own judgement.

The approach

Help 10–11 year-olds EXPLAIN (not just list) how lifestyle choices affect how body systems function, using cause-and-effect reasoning grounded in the circulatory, digestive and muscular systems they already know. The teaching core is linking a specific choice (exercise, diet balance, harmful substances) to a bodily effect — for example exercise strengthens the heart and muscles and also benefits mental health — distinguishing immediate effects (heart rate rises now) from long-term effects (heart strengthens, resting pulse lowers, weight changes), and backing the reasoning with real measurement (pulse before/after exercise). Treat drugs, alcohol and tobacco factually and age-appropriately, and avoid moralising 'good vs bad' lists or stigma around weight.

Common misconceptions

  • Treating the topic as 'good vs bad' foods/behaviours rather than understanding the mechanism of impact on body function.
  • Thinking exercise only builds muscles, missing its effect on the heart, lungs and healthy weight.
  • Believing effects are only immediate (or only long-term), rather than both (heart rate now, strengthening over time).
  • Assuming 'healthy' means thin or that weight alone measures health, rather than how well systems function.
  • Thinking small amounts of harmful substances have no effect on how the body works.

Useful representations

  • A choice→effect diagram linking diet/exercise/substances to a body system
  • A pulse-rate-before-and-after-exercise chart
  • A 'lifestyle over time' set of meters (fitness, healthy weight, organ function)
  • A body figure showing which system each choice affects
  • Cross-links back to the circulatory and nutrition representations

Teaching practices

  • Teach it as CAUSE-AND-EFFECT on body function (choice → effect on a system), not as moralising 'good vs bad' food/behaviour lists.
  • Ground every impact in the systems children already know (exercise on the heart from the circulatory topic; diet on energy from the nutrition topic) so reasoning is mechanistic.
  • Use real measurement (pulse before/after exercise, interpreting simple health data) to make the impact evidence-based and personal.
  • Distinguish immediate effects (heart rate rises during exercise) from long-term effects (heart gets stronger, weight changes over time).
  • Handle drugs, alcohol and tobacco factually and age-appropriately, focusing on how they affect body function rather than fear messaging.
  • Emphasise that everyone's body is affected by choices, avoiding stigma around weight or health status.

Activities to try

  1. 1

    Lifestyle simulator: run a body over time by changing choices

    Why it works: A lifestyle choice is a cause that changes how a specific body system functions, with both immediate and longer-term effects. In the model, the same starting body can end up functioning very differently because of the choices made; in real life, genes, age and other factors also play a part.

    1. Set a character's choices using controls: an exercise/activity level, a diet-balance control, and toggles for harmful substances (tobacco, alcohol, misused or illegal drugs). Medicines are also drugs and, used correctly, can help the body.
    2. Push the exercise level up and observe the live heart-rate meter climb immediately.
    3. Let a few simulated weeks pass and watch the 'heart & muscle strength' and 'healthy weight' meters change over time.
    4. Then lower activity and set the diet to very sugary/fatty, and watch the weight and heart-strain meters move the other way.
    5. Add tobacco and observe a lung-function meter fall.
  2. 2

    Pulse before and after exercise (real measurement)

    Why it works: The heart's response to exercise is real, measurable and personal: heart rate rises during activity and recovers afterwards, and greater fitness is linked to a lower resting rate and faster recovery.

    1. Measure and record your resting pulse (beats per minute).
    2. PREDICT what your pulse will do after exercise and why.
    3. Do one minute of vigorous activity such as star jumps.
    4. Measure your pulse again immediately afterwards.
    5. Time how long it takes to return to your resting rate.
  3. 3

    Explore-a-body: reveal how each choice affects a system, with myth-busters

    Why it works: Each lifestyle choice maps to specific effects on specific body systems — exercise is more than bigger limb muscles (it strengthens the heart, lowers resting pulse and supports mental health), and harmful substances impair organ function.

    1. Select the heart to reveal what regular exercise does to it (strengthens it, lowers resting heart rate).
    2. Select the lungs to reveal how smoking affects them.
    3. Select muscles and the digestive links to reveal how diet balance supplies energy and nutrients.
    4. Reveal that regular exercise also benefits mental health, not only the heart and muscles.
    5. Open myth-buster prompts such as 'Does exercise only build visible muscles?' and read the correction.

Topic // Standards

Curriculum standards

Codes for the curriculum statements this topic maps to. Each publisher owns its standard text.
The national curriculum in England: Key stages 1 and 2 framework document
Y6.Sci.A.2

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