Grade 8: Biology
Online lessons to help you learn.
Take online learning one step at a time with our digital content and interactive simulations. To launch a lesson click on the green folder symbol. To launch a simulation click on the green hand symbol.
1. Adaptations and Survival
Learn how different organisms are adapted to survive in their habitat.
2. Adaptations of the Alveoli
Understand how the lungs are adapted for efficient gas exchange.
3. Birth
Learn what happens during the birth of a baby.
4. Breathing
Learn how the lungs are ventilated by breathing.
5. Cell Fertilisation
Learn that fertilisation in humans and flowering plants is the fusion of a male and a female cell.
6. A Balanced Diet
Learn the names and sources of food types needed in a balanced diet and the different uses of food in the body.
7. Composition of Blood
Learn the components of blood and understand that many substances are transported dissolved in the plasma.
8. Experiments to Compare Inhaled and Exhaled Air
Learn how to compare inhaled and exhaled air.
9. Human Fertilisation
Learn that fertilisation is the fusion of the egg and sperm nuclei, and know what happens to the egg after fertilisation.
10. Mucous Membrane
Learn how the mucous membrane lining the respiratory system helps to prevent infection.
11. Organ systems
Understand that different organs work together in an organ system, and learn the functions of different organ systems in the human body.
12. Organ Systems at Work
Understand that different organ systems work together in a healthy organism.
13. Pregnancy
Understand the functions of the placenta and amniotic fluid during pregnancy.
14. Respiration
Learn that aerobic respiration is a chemical reaction that occurs in cells to release energy from glucose. Learn the word equation that represents it.
15. Sexual Intercourse
Learn what happens during sexual intercourse.
16. Testing a leaf for starch
Learn how to test a leaf for starch.
17. The Female Reproductive System
Learn the structure and function of the female reproductive organs.
18. The Heart as a Double Pump
Learn and understand that the heart is a double pump.
19. The Male Reproductive System
Learn the structure and function of the male reproductive organs.
20. The Respiratory System
Learn the structure and function of the respiratory system.
21. Using a Microscope
Learn how to use a microscope correctly.
22. Transport of Gases
Learn how oxygen and carbon dioxide are transported around the body.
23. Plant Mineral Requirements
Understand that nitrogen and other elements, in addition to carbon, oxygen and hydrogen, are required for plant growth.