On this page you will find a Masibambisane High School Grade 10 Life Sciences practical task and memo for Term 3, worth 30 marks over one hour, on the biosphere. It explains the biotic and abiotic components of ecosystems and how organisms are classified by how they obtain energy. The formal, supervised task is completed individually under test conditions with diagrams labelled in ink. A full memorandum is included to support accurate marking. This resource helps Grade 10 learners and teachers work through ecosystem concepts central to the Term 3 Life Sciences curriculum.
The following document, Life Sciences Grade 10 TERM 3 Practical Task 2022 and Memo.pdf, is the full document.
Term 3 Content Brief
Grade 10 Life Sciences Term 3 Practical Task on the Biosphere PDF 7sgmso
Defines the biosphere as “the thin layer of land, air and water around the earth’s surface that supports life,” and distinguishes abiotic from biotic ecosystem components, plus “ecological pyramids” as a representation of energy/biomass flow through trophic levels.
Masibambisane High School Grade 10 Life Sciences Practical Task 3 (30 marks, 1 hour) on abiotic factors, analysing soil sample water content, permeability and humus data to classify soil types.
Classify soil samples as sandy, clay or loam based on water content and permeability data; identify which soil is prone to waterlogging; explain differences in plant wilting related to soil properties.