ZIMSEC O Level Combined Science Notes: Experiment: Investigating the gas produced by acids and carbonates
Aim: To investigate the reaction of acids and carbonates and the gas that is produced
Materials: sodium corbonate/sodium hydrogen carbonate (baking soda), dilute hydrochloric acid/vinegar, lime water/ligted splint, 2 test tubes
Acids and carbonates […]
Molten cast iron. Image credit engineering.com ZIMSEC O Level Combined Science Notes: Cast iron and the oxygen lance process
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Rusting iron nails. Image credit corrosionist.com ZIMSEC O Level Combined Science Notes: Experiment: Investigating the corrosion of plated of plated iron
Aim: To investigate the corrosion of iron
Materials: ferroxyl indicator (turns blue when iron rusts), iron nails, sand paper, magnesium ribbon, zinc, copper, five test tubes, paint
Method
Raw Coke. Image credit MedialWiki ZIMSEC O Level Combined Science Notes: The manufacture of coke at Hwange
Demostrating static electricity using a comb. Image credit alinasadventuresinhomemaking.com ZIMSEC O Level Combined Science Notes: Electrostatics/Static Electricity
A simple cell in action ZIMSEC O Level Combined Science Notes: Experiment: Changing chemical energy into electrical energy
Aim: To change chemical energy into electrical energy using a simple cell
Materials: 10 cm magnesium ribbon, strip of copper foil, dilute sulphuric acid/ethanoic acid, ammeter/lamp/torch bulb,connecting leads with crocodile clips, […]
A simple motor. Image credit youtube.com ZIMSEC O Level Combined Science Notes: Electric motors
Joining parts of a plane. Image credit airportjournals.com ZIMSEC O Level Combined Science Notes:Methods of Joining materials
The Hong Kong Bridge. Image credit plus.maths.org ZIMSEC O Level Combined Science Notes: Suspension bridge
Bicycle pump in action. Image credit mpora.com ZIMSEC O Level Combined Science Notes: Pumps: Cycle pump
The internal structure of a cycle pump […]
