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Science at key stage 3    (Year 8)

Unit 8B: Respiration
Section 8: Checking progress

QCA

Objectives
Children should learn:
  • about the reaction in cells between glucose and oxygen
  • how the blood transports glucose and oxygen around the body

Activities

Outcomes
Children:
  • Provide pupils with a series of true/false statements or flashcards about respiration and the transport role of blood. Ask them to work in groups to classify the statements and to provide reasons for their choices. They should be shown how to discuss and respond to initial ideas and information, carry out the task, and then review and refine ideas. Use the work to form the basis of a summary of key points.
  • identify the reactants and the products of respiration
  • explain the role of the blood in supplying and removing substances to cells
  • identify some effects of a reduced oxygen supply to respiring cells
  • contribute to sustained group work to carry out and report on a task

Points to note
  • At this point teachers may wish to reinforce the idea that respiration and breathing have different scientific meanings.

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. How do cells use the food molecules absorbed after digestion?
2. b. How do cells use the food molecules absorbed after digestion?
3. c. How do cells use the food molecules absorbed after digestion?
4. d. How do cells use the food molecules absorbed after digestion?
5. a. How does the oxygen needed for respiration reach the tissues of the body?
6. b. How does the oxygen needed for respiration reach the tissues of the body?
7. What happens to the oxygen when it reaches the cells?
8. Checking progress
9. What is the role of the lungs?
10. How are inhaled and exhaled air different?
11. a. Do other organisms respire in a similar manner?
12. b. Do other organisms respire in a similar manner?
13. Reviewing work