The basic structure of a flower: showing the reproductive organs ZIMSEC O Level Combined Science Notes: Reproduction in plants: Flowers and Pollination
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 structure of atoms. Image credit enotes.com ZIMSEC O Level Combined Science Notes: Structure of atoms
image credit tiespecialistas.com.br ZIMSEC O Level Principles of Accounts Notes: Uses and the importance of the Trading and Profit and Loss Account
Trial balance. image credit vpg.lt ZIMSEC O Level Principles of Accounts Notes: Sole Trader: Trading and profit and loss accounts and balance sheets: Other items
From the following trial balance of G Musandu, draw up a trading and profit and loss account for the year ended 30 […]
The cross section of beams ZIMSEC O Level Combined Science Notes: Strength to Mass ratio
There are a lot factors to consider when choosing a source of finance. Image credit quicken.com ZIMSEC O Level Business Studies Notes: Factors to consider when choosing a source of capital
Investigating the rusting of iron ZIMSEC O Level Combined Science Notes: Experiment: Investigating the rusting of iron
Aim: Investigating the rusting (oxidation) of iron
Materials: 4 iron nails, 1 steel nail, a piece of copper/brass, 5 test tubes, cotton wool, solid calcium chloride, magnesium ribbon
Method
Relationship between temperature and rate of reaction. Image credit bu.edu ZIMSEC O Level Combined Science Notes:Experiment: The rate of reactions and temperature
Aim: To find the effect of temperature on the rate of reaction: using hydrochloric acid and sodium thiosulphate
Materials: flask, […]
Investigating the rusting or iron ZIMSEC O Level Combined Science Notes: Coating metals/Protecting metals from corrosion
