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Schemes of Work
QCA

Science at key stage 3    (Year 8)

Unit 8B: Respiration

QCA

Resources

Resources include:

  • a selection of living material, eg germinating peas, maggots, woodlice
  • thermometers, liquid crystal strips
  • reference sources, including ICT sources, providing information about how organisms, including aquatic ones, exchange gases with the environment
  • information, eg labels, about the content of 'high energy' drinks/food supplements
  • secondary sources of information about the heart
  • software simulations and video clips illustrating the transport of substances in the blood
  • video clips illustrating athletics or other sports
  • information about intravenous feeding
  • information concerning early ideas about circulation

Sections in this unit

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