Circulatory systems (3)Grade 10 / Life Sciences / Life processes in plants and animals

Human impact on the environment – Food security Grade 11 / Life Sciences / Environmental studies

Body systems - The excretory systemGrade 9 / Natural Sciences / Life and living

Harmful micro-organismsGrade 8 / Natural Sciences / Life and living

Angiosperm reproduction (2)Grade 7 / Natural Sciences / Life and living

Circulatory systems (4)Grade 10 / Life Sciences / Life processes in plants and animals

Human impact on the environment – Solid-waste disposal Grade 11 / Life Sciences / Environmental studies

Useful micro-organismsGrade 8 / Natural Sciences / Life and living

Sexual reproduction in humans (1)Grade 7 / Natural Sciences / Life and living

ExcretionGrade 9 / Natural Sciences / Life and living