ZIMSEC O Level Combined Science Notes: Experiment: Making salt:copper sulphate
Materials: Making a salt, copper sulphate
Materials: copper oxide, dilute sulphuric acid, plastic beaker, evaporating dish, filter funnel, filter paper, stirring rod, spatula/plastic teaspoon
Making copper sulphate
Method
The purification of copper using the flotation cell ZIMSEC O Level Combined Science Notes:Experiment: The flotation cell
Aim: To make a copper flotation cell
Materials: basin of water, mixture of sand and powdered copper sulphide, washing powder/dish washing liquid,litmus paper, rubber tube, filter funnel, tray, wooden […]
Apparatus used in the electrolysis of water. Image credit youtube.com ZIMSEC O Level Combined Science Notes: Experiment: Electrolysis of water
Aim: To produce hydrogen gas using the electrolysis of water
Materials: beaker, test tubes, carbon electrodes, water, concentrated sulphuric acid, battery/8-12v power supply, connecting […]
Distillation of alcohol. Image credit bbc.co,uk ZIMSEC O Level Combined Science Notes: Experiment: The distillation of ethanol
Aim: To concentrate alcohol using the distillation process
Materials: thermometer, clamp stands, rubber bungs, round bottomed flask, fractionating column. condenser with rubber tubing, watch-glass or tin lid, porcelain chips or clean dry sand
A simple circuit diagram ZIMSEC O Level Combined Science Notes: Current electricity
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Cells in series ZIMSEC O Level Combined Science Notes: Cells in a series
Fleming’s right hand rule ZIMSEC O Level Combined Science Notes: Fleming’s Left hand rule
Gang nails on a wooden truss. Image credit naildesignart.biz ZIMSEC O Level Combined Science Notes:Joining trusses
Gears in a machine. Image credit wall.alphacoders.com ZIMSEC O Level Combined Science Notes: Machines
Siphons being used for irrigation. Image credit wonderopolis.org ZIMSEC O Level Combined Science Notes: The siphon
