The composition of blood. ZIMSEC O Level Combined Science Notes: Blood and its properties
Testing the water holding capacity of soil ZIMSEC O Level Combined Science Notes: Comparing the water holding capacity of the soil
Materials: Measuring cylinders, funnels, cotton wool, water, dry soil samples, stop watch/clock
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
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
