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Science at key stage 3    (Year 8)

Unit 8A: Food and digestion
Section 5: b. Which foods provide a balanced diet?

QCA

Objectives
Children should learn:
  • to distinguish facts from theories/ hypotheses/opinions
  • to show relationships between ideas, by using links which show purpose and reservations

Activities

Outcomes
Children:
  • Ask pupils to use information from a variety of secondary sources to find out more about one question from those already raised by pupils or others, eg
    • What foods should you eat to reduce the chance of heart disease?
    • What do athletes eat at different stages of training?
    • What does a pregnant woman need in her diet?
    • What are 'organic' foods and how are they different from other foods?
    • Are breakfast cereals really good for you?
  • Discuss with pupils what they have found out and the extent to which they have confidence in the information they used.
  • critically assess the sources of secondary data, and use selected sources for a purpose
  • identify factual information and distinguish it from an opinion/claim, focusing on the language used
  • recognise when presenting results that knowledge is incomplete and interpretation of evidence is difficult

Points to note
  • This provides an opportunity for considering an area of science in which our knowledge is incomplete and interpretation of the available evidence is difficult.

Sections in this unit

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This unit is divided into sections. Each section contains a sequence of activities with related objectives and outcomes. You can view this unit by moving through the sections or print/download the whole unit.
1. a. What's in food and why is it important?
2. b. What's in food and why is it important?
3. c. What's in food and why is it important?
4. a. Which foods provide a balanced diet?
5. b. Which foods provide a balanced diet?
6. c. Which foods provide a balanced diet?
7. Checking progress
8. a. What happens to food inside the digestive system?
9. b. What happens to food inside the digestive system?
10. a. What do digestive enzymes do?
11. b. What do digestive enzymes do?
12. Where are the products of digestion used?
13. Reviewing work