image credit onlinecollegecourses.com ZIMSEC O Level Principles of Accounts Notes: The format of a Simple Trading and Profit and Loss Account
The Name of the Business/Proprieter
NB The exact names and types of expenses and other income will vary from business to business you should […]
Common types of beams and their associated forces ZIMSEC O Level Combined Science Notes: An introduction to Beams and their types
Eating junk food can lead to obesity. Image credit newtimes.co.rw ZIMSEC O Level Combined Science Notes: Malnutrition
Heating metals in air, Magnesium oxide. ZIMSEC O Level Combined Science Notes: Experiment: Heating metals in air
Aim: To heat metals in air and observe and record the process and results
Materials: magnesium, zinc, iron, copper, tongs, burner
Method
Universal paper can be used to test the acidity of a solution. Image credit MediaWiki ZIMSEC O Level Combined Science Notes: Experiment: The properties of acids
Aim: Investigating the properties of acids
Materials: Dilute hydrochloric acid, vinegar, lemon juice, […]
ZIMSEC O Level Combined Science Notes: Experiment: investigating reversible reactions
Aim: Investigating reversible reactions
Materials: boiling tube, test tubes, copper sulphate crystals,solid ammonium chloride, red litmus paper, blue litmus paper, dilute hydrochloric acid, sodium hydroxide solution, potassium chromate solution, tongs
Heating ammonium chloride. Image credit youtube.com
Method A
Copper plating iron ZIMSEC O Level Combined Science Notes: Experiment: Copper plating an iron nail
Aim: Copper plating an iron nail
Materials: beaker, copper sulphate, dilute sulphuric acid, iron nail, copper electrode, amateur, 1.5V torch cells, sandpaper
Method
Engen Garage. Image credit chronicle.co.zw ZIMSEC O Level Combined Science Notes: Types of fuel
Honda Diesel Engine. Image credit forum.cardekho.com ZIMSEC O Level Combined Science Notes: The Diesel engine
ZIMSEC O Level Combined Science Notes: Electric Power equations and calculations
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