ZIMSEC O Level Combined Science Notes: Experiment: The reaction of metals and water
Aim: Investigating and Observing the reactions of metals and water
Materials: calcium, magnesium, zinc, lead, iron, copper, beaker, test tubes, filter funnel, water, splint, burner, universal indicator
Some metals like calcium react with water.
Method
Universal indicator results showing the pH of various solutions. Image credit MediaWiki ZIMSEC O Level Combined Science Notes: The pH scale
The pH colour chart. Image […]
Steel beams. Image credit risleysteelservices.ca ZIMSEC O Level Combined Science Notes: Steel making
Tin plating is used in making food cans. Image credit alsagerfoodbank.org.uk ZIMSEC O Level Combined Science Notes: Summary of plating and its uses
Making coke ZIMSEC O Level Combined Science Notes: Experiment:Making coke and collecting the resulting gases
Aim: To make coke using coal and collect the gas and liquid by-products
Materials: crushed coal, test tubes, glass tubing, splints, lead ethanoate solution, filter paper, red and blue litmus paper, sodium hydroxide solution, beaker, water, trough, […]
Like charges repel and unlike attract ZIMSEC O Level Combined Science Notes: Experiment: Charges between charged bodies
Aim: To demonstrate the forces of static electricity
Materials: glass/perspective rod, 2 polythene rods, silk cloth, woolen cloth and 2 watch-glasses
Method
Testing simple cell electrodes ZIMSEC O Level Combined Science Notes: Experiment: To measure the potential difference of a simple cell
Aim: To measure the potential difference of a simple cell when different electrodes are used
Materials: dilute sulphuric acid, voltmeter, beaker, leads and crocodile clips, magnesium ribbon,lead foil, copper foil, […]
A simple motor. Image credit youtube.com ZIMSEC O Level Combined Science Notes: Electric motors
A bridge made of ice cream sticks. Image credit pinterest.com ZIMSEC O Level Combined Science Notes:Experiment: Comparing roof truss structures
Aim: To determine which structure is best for roof trusses/bridge girders
Materials: Poplar wood /ice cream sticks/grass straws, stikistuff/drawing pins/glue, tin of sand, […]
A pier bridge. Image credit sehinc.com ZIMSEC O Level Combined Science Notes: Pier Bridge
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