Environment 5: Grade 08

Grade 8: Eco Curriculum


• Natural resources (such as types of marine life, water, air, forests and soil) in your country and worldwide:
• how they are being used
• conservation and protection of resources (including wildlife)
• why conservation is necessary
• threats to conservation
• new opportunities to conserve resources such as community development, eco-tourism, ways to share resources sustainably

Life and Living

Interactions in Environments:
Summery: Successful reproduction secures continued existence.
• Human reproduction is more than conception and birth; it involves adults raising children, which requires judgement and values and usually depends on the behavior of other people in the community and environment.
• Each species of animal have characteristic behaviors which enables it to feed, find a mate, breed, raise young, live in a population of the same species, or escape threats in its particular environment. These behaviors have risen over long periods of time that the species population has been living in the same environment.
• All organisms have adaptations for survival in their habitats (such as adaptations for maintaining their water balance, obtaining and eating the kind of food they need, reproduction, protection or escape from predators.)

Bio-diversity, Change and Continuity:
Summery: Natural selection ensures survival of the healthy individuals in a given environment and so ensures a healthy and continued co-existence.
• Offspring of organisms differ in small ways from their parents and generally from each other. This is called variation in species.
• Natural selection kills those individuals of a species which lack the characteristics that would have enabled them to survive and reproduce successfully in their environment. Individuals who have characteristics suited to the environment reproduce successfully and some of their offspring carry the successful characteristics. Natural selection is accelerated when the environment changes; this can lead to the extinction of species.
The Planet Earth and Beyond
The Changing Earth
Summery: As animals have changed over millions of years, so landscapes also change, either over long periods or via catastrophic events. Make a point of the fact that soil cannot quickly be formed.

• The planet earth has a layered structure, with lithosphere, a hot, convecting mantle and a dense, metallic core.
• Lithospheric plates larger than some continents constantly moves at rates of centimetres per year, in response to movements in the mantle. Major geological events, such as earthquakes, volcanic eruptions and mountain building, result from these plate motions.
• Landforms are the result of a combination of constructive and destructive forces. Constructive forces include crustal deformation, volcanic eruption, and deposition of sediment, while destructive forces include weathering and erosion.
LIFE ORIENTATION SPECIFIC THEME: Take care of your environment; take care of yourself
In the National Curriculum Framework no theory, but only practical application has been identified for this learning area.

Technological processes and skills:
Summery: Design a product to fulfill a national need taking into account safety and environmental considerations.
• Investigate the background context, the nature of the need, the environmental situation, and the people concerned when given a problem, need or opportunity set in a nationally relevant context.
• Compare existing products relevant to the problem situation based on:
• safety;
• sutability of materials;
• fitness for purpose;
• cost.
• Develop and perform practical tests in the technological knowledge areas (Structures, Processing, and Systems and Control)
• List product and design specifications and constraints for a solution to an identified or given problem, need or opportunity based on most of the design key words listed below:
• People: age, target market, human rights, access;
• Purpose: function; what the product will do;
• Appearance: colour, shape
• Environment: where the product will be used or made, impact on the environment;
• Safety: for users and manufacturers;
• Cost: cost of materials, wastage, cost of manufacture, maximum selling price.