Business often make use of Overdrafts. Image credit telegraph.co.uk ZIMSEC O Level Principles of Accounts Notes: The Cash Book:Bank Overdrafts
Capital also includes the equipment that a business uses. Image credit MediaWiki
ZIMSEC O Level Business Studies Notes: The nature,importance and uses of capital
ZIMSEC O Level Combined Science Notes: Oxidation of iron/Rusting
Rate of reactions. Image credit about.com ZIMSEC O Level Combined Science Notes: The speed of reactions
Refining copper using electrolysis ZIMSEC O Level Combined Science Notes: Experiment: Purification of copper using electrolysis
Aim: To investigate the process of refining copper using electrolysis
Materials: two strips of copper, sandpaper, copper sulphate solution, 12 volt dc supply/battery, beaker, ammeter/bulb
Method
Dry ice has a number of industrial uses. Image credit MediaWiki ZIMSEC O Level Combined Science Notes: Industrial gases
Fermentation of glucose ZIMSEC O Level Combined Science Notes: Experiment: Determining the best conditions for the production of ethanol
Aim: To determine the best conditions for ethanol production
Materials: 5% glucose solution, 20% glucose solution, yeast, sodium hydroxide solution, mealie meal, dilute hydrochloric acid, thermometer, conical flask, cork, glass tube, test tube, […]
A voltmeter in a circuit measuring potential difference between two points ZIMSEC O Level Combined Science Notes: Potential difference
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Cells in parallel ZIMSEC O Level Combined Science Notes: Cells in parallel
Safe use of electricity .Image credit keyword-suggestions.com ZIMSEC O Level Combined Science Notes: Electrical safety
