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      Why we need energy and nutrients

      Lesson details

      Learning outcome

      I can explain why we need energy and name different nutrients.

      Key learning points

      1. To be active and healthy, food is needed to provide energy for the body. 
      2. Different people need different amounts of energy, and different activities use different amounts.
      3. Food and drinks provide nutrients, fibre and water. They have different functions to keep us healthy.
      4. A wide variety of food is needed as different food provides different types and amounts of nutrients.

      Keywords

      • Energy - derived from food and required for us to stay alive and function

      • Nutrients - substances that are essential for life, growth and health

      • Fibre - substances in food from plants that are resistant to digestion

      • Water - a colourless and odourless liquid, the basis of living things

      Common misconception

      Activity is about being sporty, being active.

      Activity is all the things we do and movements we make, not only sports. It includes sports, but also reading, sleeping and watching TV.

      Teacher tip

      Use food packaging to allow pupils to investigate the energy provided by different foods. Pupils could arrange the foods in order - from highest to lowest energy.

      Licence

      This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      Pick three foods from this food group:

      An image in a quiz
      eggs
      sweetcorn
      Correct answer: wholemeal bread
      Correct answer: brown rice
      Correct answer: boiled potatoes

      Q2.
      Which foods should we eat less often and in small amounts?

      celery, apples and bananas
      beans, eggs and chicken
      Correct answer: cakes, biscuits and crisps
      Correct answer: chocolate and ice cream

      Q3.
      True or false? We need a variety and balance of foods to stay healthy.

      Correct answer: true
      false

      Q4.
      The Eatwell Guide shows that we should have __________ a day.

      2 - 4 drinks
      4 - 6 drinks
      Correct answer: 6 - 8 drinks
      8 - 10 drinks

      Q5.
      Match the key messages to the foods:

      Correct Answer:Have 5 A DAY,plums, okra

      plums, okra

      Correct Answer:Have with each meal,noodles, potatoes

      noodles, potatoes

      Correct Answer:Have two portions of fish every week,salmon, prawns

      salmon, prawns

      Correct Answer:Have some everyday,cheese, yogurt

      cheese, yogurt

      Correct Answer:Have occasionally and in small amounts,biscuits, cakes

      biscuits, cakes

      Q6.
      Some people can have a bad reaction to a food; this is known as a food .

      Correct Answer: allergy, allergies
      Q1 © Crown copyright, OHID in association with the Welsh government, Food Standards Scotland and the Food Standards Agency in Northern Ireland.

      6 Questions

      Q1.
      True or false? Being active is about being sporty.

      true
      Correct answer: false

      Q2.
      Food and drinks are the body’s source of .

      Correct Answer: energy

      Q3.
      How much energy is provided by this food for one biscuit?

      An image in a quiz
      100 kJ or 15 kcal
      251 kJ or 64 kcal
      Correct answer: 351 kJ or 84 kcal
      2063 kJ or 493 kcal

      Q4.
      True or false? The Eatwell Guide food groups provide different nutrients, so we need a variety of different foods.

      An image in a quiz
      Correct answer: true
      false

      Q5.
      Which types of foods provide fibre?

      milk and cheese
      Correct answer: beans and pulses
      eggs and fish
      Correct answer: vegetables and fruit
      Correct answer: potatoes and pasta

      Q6.
      The different substances that food and drinks contain that are needed to keep us healthy are __________, __________, __________.

      Correct answer: nutrients
      gases
      medicines
      Correct answer: fibre
      Correct answer: water
      Q4 © Crown copyright, OHID in association with the Welsh government, Food Standards Scotland and the Food Standards Agency in Northern Ireland.

      To help you plan your 5 cooking and nutrition lesson on: Why we need energy and nutrients, download all teaching resources for free and adapt to suit your pupils' needs...