Botswana BGCSE Science Double Award (0569) case studies
Botswana BGCSE Science Double Award (0569) · Put your knowledge to work in context.
The BGCSE Science Double Award (syllabus 0569) is a Botswana General Certificate of Secondary Education qualification that counts as two science subjects in one award. It is designed for learners in senior secondary schooling who need a broad, balanced grounding in biology, chemistry and physics rather than a single specialism, and it supports progression to further study and to science-related work. The Botswana BGCSE Science Double Award (0569) case studies are 5 cases and about 3,290 words.
1The Village Borehole and the Nitrate Problem
A village of 900 people draws drinking water from a borehole 40 m deep. A nearby farmer keeps 60 cattle in a kraal 30 m from the borehole and spreads 200 kg of ammonium nitrate fertiliser on a maize field each season.
618 words, about 3 min2Testing a Fertiliser Sample in the School Laboratory
A Form 5 student is given a white crystalline sample labelled only 'fertiliser salt, possibly ammonium sulphate or ammonium chloride'. She has dilute sodium hydroxide, dilute nitric acid, silver nitrate solution, barium chloride solution, a Bunsen burner, test tubes and red litmus paper.
673 words, about 3 min3Choosing a Bulb for a Solar-Powered Chicken House
A poultry farmer wants to light a 4 m by 3 m chicken house at night using a 12 V battery charged by a 60 W solar panel. She has three bulbs: bulb A rated 12 V, 24 W; bulb B rated 12 V, 6 W; bulb C rated 240 V, 24 W.
715 words, about 4 min4A New Well and the Disappearing Frogs
A wetland of about 2 hectares lies beside a village. It supports frogs, reed warblers, dragonflies and a small fish population.
655 words, about 3 min5The Bicycle Brake and the Steep Hill
A student rides a bicycle down a hill 120 m long that drops 15 m in height. The bicycle and rider have a combined mass of 80 kg.
629 words, about 3 min