Grade 11 Life Sciences

Grade 11 Life Sciences

4 Seasons

Grade 11 Life Sciences covers a range of biological concepts and processes such as the life processes in plants and animals, diversity, change and continuity and environmental studies.

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Grade 11 Life Sciences
  • Human impact on the environment

    Episode 1

    In this lesson we will look at the impact of human activities on the biophysical environment, biodiversity, other resources and the working mechanism of the environment.

  • Water availability

    Episode 2

    In this lesson we will look at water availability, both as surface water and groundwater, is essential for agriculture, human consumption, industry, and energy generation.

  • Water availability and quality part 2

    Episode 3

    In this lesson we are going to focus on the last four factors which include poor farming practices, exotic plantation and depletion of water table, boreholes and the effect on aquifers as well as wastage and cost.

  • Water quality and pollution

    Episode 4

    In this lesson, we will be covering water quality and pollution.

  • Food security part 1

    Episode 5

    In this lesson we will look at food security which is access to healthy food and optimal nutrition for all. Food access is closely linked to food supply, so food security is dependent on a healthy and sustainable food system.

  • Food security part 2

    Episode 6

    In this lesson we will be covering how overgrazing, the presence of alien plants, Genetically modified food leading to gene pool as well as food wastage affect food security.

  • Loss of biodiversity (the sixth extinction) Part 1

    Episode 7

    In this lesson we will look at the loss of biodiversity, the 6th mass extinction, as well as how it can be defined as a rapid and widespread loss in biodiversity.

  • Loss of biodiversity (the sixth extinction) Part 2

    Episode 8

    In this lesson we will look at the process in which a natural habitat is rendered unable to support the species present. In this process, the plants and animals which previously used the site are displaced or destroyed, reducing biodiversity.

  • Indigenous knowledge systems and sustainable use of the environment

    Episode 9

    In this lesson we will look at indigenous knowledge (IK) and indigenous knowledge systems (IKS) refer to knowledge and knowledge systems that are unique to a given culture. This system can help to meet the broader objectives of society, for instance conserving the environment, developing sustain...

  • Solid waste disposal

    Episode 10

    In this lesson we will look at how solid waste disposal must be managed systematically to ensure environmental best practices. Solid waste disposal and management is a critical aspect of environmental hygiene and it needs to be incorporated into environmental planning.