Sand, Loam and Clay soil samples. Image credit ayersbasementsystems.com ZIMSEC O Level Combined Science Notes: Comparing the air content of soils
Materials: small tin cans, measuring cylinders, water, samples of clay, sandy and loam soils, hammer, nail
Method
The atomic structure of carbon. Image credit ucsb.edu ZIMSEC O Level Combined Science Notes: Structure of atoms: protons,electrons and neutrons
Protons and neutrons
Loading a beam ZIMSEC O Level Combined Science Notes: Loading a beam
Magnesium reacts with steam ZIMSEC O Level Combined Science Notes: Experiment: The reaction of metals and water
Aim: To investigate and observe the reaction of magnesium and water
Materials: magnesium ribbon, hard glass test tube, water, sand, 2 burners, short glass tube, splint, clamp stand
Method
Household goods that are bases. Image credit MediaWiki ZIMSEC O Level Combined Science Notes: Introduction to Bases
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, […]
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