A house is a structure, so is furniture and staircases window/door frames etc. Image credit abduzeedo.com ZIMSEC O Level Combined Science Notes:Structures and construction materials
A wooden house. Image credit designrulz.com ZIMSEC O Level Combined Science Notes:Timber properties and timber structures
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Metals are popular in construction. Image credit traveldigg.com ZIMSEC O Level Combined Science Notes: Metal and metal alloy properties and their construction uses
Reinforced concrete. Image credit surfcivil.blogspot.com ZIMSEC O Level Combined Science Notes: Metal and metal alloy properties and their construction uses
Comparing the strength of various materials ZIMSEC O Level Combined Science Notes: Experiment: Comparing the strength of natural timber and other construction materials
Aim: To compare the strength of some natural timbers and other materials
Materials: Plywood, hard wood cut across the grain, soft wood cut along the grain, […]
Sheets of made of sponge rubber. Image credit rollsheetrubber.com ZIMSEC O Level Combined Science Notes: Experiment: To compare the shear and tensile strength of sponge rubber and soft wood
Aim: To compare the shear and tensile strength of sponge rubber and a softwood
Materials: wooden ice-cream […]
Rusted metal. Image credit racingstrong.com ZIMSEC O Level Combined Science Notes: Experiment:To compare the effects of atmospheric corrosion on metals
Aim: To compare the effects of atmospheric corrosion on various metals
Materials: samples of mild steel/cast iron, stainless steel, cutting steel (razor blade/old hacksaw blade), brass, aluminium, copper, plastic […]
The effects of acid rain. Image credit penguinsofchemistry.wordpress.com ZIMSEC O Level Combined Science Notes: Experiment To show the effect of sulphuric acid on some materials
Aim: To show the effect of sulphuric acid on some materials
Materials: dilute sulphuric acid, wood, copper, plastic, iron, steel, aluminium, […]
Treated poles. Image credit lynnridgetimbers.co.za ZIMSEC O Level Combined Science Notes: Experiment: To compare the resistance of different woods to termite attack
Aim: To compare the resistance of different types of wood to termite attack
Materials: gloss paint, used motor oil, creosote, 4 samples of softwood (pine), 4 samples of […]