February 2025

Benefits and damage of the Portuguese activities to the Mutapa State

By |2025-02-12T08:57:36+02:00February 12th, 2025|Notes, O Level History Notes, Ordinary Level Notes|

An early Portuguese map showing the Mutapa state An early Portuguese map showing the Mutapa state ZIMSEC O Level History Notes: The Portuguese in the Zambezi Valley: The benefits and damage of Portuguese activities to the Mutapa State

Benefits

  • They introduced new farming methods.
  • Introduced new crops e.g. maize and cassava.
  • Introduced new mining […]
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The tribes that formed (were part of) the Ndebele society

By |2025-02-12T09:10:26+02:00February 12th, 2025|Notes, O Level History Notes, Ordinary Level Notes|

A watercolour showing Mzilikazi Khumalo King of the Ndebele. Image credit africanfederation.net A watercolour showing Mzilikazi Khumalo King of the Ndebele. Image credit africanfederation.net ZIMSEC O Level History Notes:The Ndebele:The tribes that formed (were part of) the Ndebele society

The following tribes made up the Ndebele Society:

  • The Ndebele (the Khumalo originally […]
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Transport: Introduction

By |2025-02-12T09:24:42+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Esighodhini Bus Stop. Image credit zimbabwefocus.com Esighodhini Bus Stop. Image credit zimbabwefocus.com ZIMSEC O Level Geography Notes: Transport: Transport: Introduction

  • -refers to the means by which goods and people are moved from one point to another on the earth’s surface.
    Transport is an outcome of supply (production) and demand (consumption).
  • Goods or raw […]
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Inventions made in the Industrial revolution

By |2025-02-12T09:38:42+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Watt's steam engine. Image credit MediaWiki Watt’s steam engine. Image credit MediaWiki ZIMSEC O Level History Notes: Missionaries:Inventions made in the Industrial revolution

  • The following were some of the inventions that came out of Britain’s Industrial Revolution:
  • The seed drill
  • The steam engine
  • Weaving machines
  • Spinning machines such as Spinning Jenny
  • Railways
  • Telegraphs
  • Steam boats that made travel […]
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The Sales Returns and Purchases Returns Day Books

By |2025-02-12T09:06:25+02:00February 12th, 2025|Notes, Ordinary Level Notes, Principles of Accounts Notes|

Returns are part of business. Image credit ministryideaz.com Returns are part of business. Image credit ministryideaz.com ZIMSEC O Level Principles of Accounts Notes: The Sales Returns and Purchases Returns Day Books

  • Most businesses allow customers to return goods that they have bought for various reasons
  • For example if the goods are ill-fitting, […]
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Introduction to Limited Liability Companies

By |2025-02-12T09:21:51+02:00February 12th, 2025|Notes, O Level Business Studies Notes, Ordinary Level Notes, Principles of Accounts Notes|

Pick n Pay is an example of a limited liability company. Image credit tmsm.co.zw Pick n Pay is an example of a limited liability company. Image credit tmsm.co.zw ZIMSEC O Level Business Studies Notes: Introduction to Limited Liability Companies

  • Contrary to popular belief among students and common people the word company […]
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Sample surveys: collecting population data

By |2025-02-12T09:01:31+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Zimstat officials often carry out sample surveys. Image credit voazimbabwe.com Zimstat officials often carry out sample surveys. Image credit voazimbabwe.com ZIMSEC O Level Geography Notes: Population:Sample surveys: collecting population data

  • In a sample survey only part of the population is covered in the survey.
  • A survey is an exercise designed to obtain […]
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Experiment: Investigating the conditions necessary for germination to occur

By |2025-02-12T09:33:39+02:00February 12th, 2025|Notes, O Level Shona Notes, Ordinary Level Notes|

germination_of_seeds

ZIMSEC O Level Combined Science Notes: Reproduction in plants: Reproduction in Plants: Investigating the conditions necessary for germination to occur  

Materials: maize/bean seeds, containers one of which has a lid, cotton wool, filter paper, pyrogallic acid

Method

  1. Take four batches with ten seeds in each batch
  2. Put them in containers as shown in the diagrams above […]
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Experiment: Calculating the water and organic content of soil

By |2025-02-12T08:58:08+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

Soil has got organic content. Image credit manicapost.com Soil has got organic content. Image credit manicapost.com ZIMSEC O Level Combined Science Notes: Experiment: Calculating the water and organic content of soil

Materials: soil sample, burner, balance, evapourating dish basin, tongs, water bath

Method

  1. This burns off the organic content of the soil
  2. Roast the […]
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