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      Fats in food: plan and do (non-statutory)

      Lesson details

      Learning outcome

      I can set up an investigation to compare how much fat is in different types of food.

      Key learning points

      1. Fats are a type of nutrient that you get from your diet, that give your body energy.
      2. It is essential to eat some fats, though it is also harmful to eat too much.
      3. Fats in foods produce a greasy mark that is not easily removed.
      4. Fats in food, absorbed by paper, are easily visible and make it easy to identify which foods contain fats.
      5. Scientists ask questions, then plan investigations to find answers.

      Keywords

      • Nutrient - A nutrient is any substance that plants or animals need in order to live and grow.

      • Label - A label is a sign that gives us information about the thing it is with.

      • Fat - Fat is a nutrient found in foods such as butter and cheese. Only small amounts are needed as part of a healthy diet.

      • Greasy - Something that is greasy is covered with or produced by fats and oils.

      • Observe - To observe is to look very closely and use other senses too.

      Common misconception

      All foods containing fats are 'bad' for us and we should not eat them.

      Humans need some fat as part of a balanced diet but a diet that is very high in fat is not healthy for humans.

      Teacher tip

      Keep the food labels used in the previous lesson to use again or ask pupils to collect and bring in food labels from home to ensure a good variety to explore.

      Equipment

      Food labels, a variety of different types of crisps, squared paper.

      Content guidance

      Depiction or discussion of sensitive content

      Supervision

      Adult supervision recommended

      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.
      Which of these can help us to make decisions about the food that we eat?

      a website about animals
      a supermarket display
      Correct answer: a food label

      Q2.
      Why is it important that humans have a diet that contains some fat?

      Fat helps a human's bones to stay healthy.
      Correct answer: Fat gives humans energy.
      Fat helps a human's body to repair itself.

      Q3.
      Fat is a type of ...

      protein
      carbohydrate
      Correct answer: nutrient

      Q4.
      Which of these foods has a high fat content?

      Correct answer: olive oil
      tomatoes
      rice

      Q5.
      Which of these food labels shows a high fat content?

      Correct answer: label 1
      label 2
      label 3

      Q6.
      How can we find out more about nutrients in food?

      by eating different foods
      Correct answer: by testing different foods
      by measuring different foods

      6 Questions

      Q1.
      What is a nutrient?

      a type of carbohydrate
      Correct answer: a substance that plants or animals need in order to live and grow
      the name of a vegetable

      Q2.
      Should humans eat foods that contain fats?

      Yes, humans should have a diet made up of mostly foods that are high in fat.
      Correct answer: Yes, humans should have some foods that contain fat as part of a balanced diet.
      No, humans should not eat any foods that contain fat.

      Q3.
      How can we find out which foods contain fat?

      We can eat them and see which ones taste the saltiest.
      We can smell them to see which ones smell the best.
      Correct answer: We can place them on paper and see which ones produces the largest greasy mark.

      Q4.
      Greasy marks left by some foods are easy to see. Why is this useful?

      It helps us to identify foods that contain dairy.
      Correct answer: It helps us to identify foods that contain fat.
      It helps us to identify foods that contain protein.

      Q5.
      How much fat does this pizza contain per 100 g?

      An image in a quiz
      Correct Answer: 10.0 g, 10g, 10.0g, 10 g, 10 grams

      Q6.
      Which of these foods would we expect to create the largest greasy mark?

      a tomato
      Correct answer: a crisp
      a small piece bread

      To help you plan your 3 science lesson on: Fats in food: plan and do (non-statutory), download all teaching resources for free and adapt to suit your pupils' needs...