The rate of transpiration is influenced by any number of things. Image credit wordpress.com ZIMSEC O Level Combined Science Notes:Factors affecting rate of transpiration
ZIMSEC O Level Business Studies Notes:Reasons why the government regulates Business activity
Arteries, capillaries and veins. Image credit evolvingsciences.com ZIMSEC O Level Combined Science Notes: The blood vessels
Loam soil. Image credit betterground.org ZIMSEC O Level Combined Science Notes: The physical components of the soil
Sand, Loam and […]
Nitrogen fixing roots in legumes. Image credit MediaWiki ZIMSEC O Level Combined Science Notes: The nitrogen cycle
Cooling naphthalene ZIMSEC O Level Combined Science Notes: Experiment: the cooling curve of naphthalene
Materials: test tube, naphthalene, thermometer, hot water, burner, stand, clamp
Be careful as naphthalene vapour is poisonous: you can wear a breathing mask to reduce the risk of you inhaling the vapour
Method
Image credit udiscover-psbedu.paris ZIMSEC O Level Principles of Accounts Notes: Sole Trader: Simple Balance Sheet Example 2
From the following trial balance of J Nhiwatiwa after his first year’s trading, you are required to
draw up a trading and profit and loss account for the year ended 30 June […]
Types of stresses that affect beams. The arrows show the direction of force. ZIMSEC O Level Combined Science Notes: Stress in beams
Business can make use of internal sources of finance. Image credit elfidental.com ZIMSEC O Level Business Studies Notes: Internal Sources of finance
ZIMSEC O Level Combined Science Notes: Experiment: Reducing Copper oxide with carbon
Aim: To reduce copper oxide with carbon
Materials: black copper oxide, tongs, crucible lid, powdered carbon, burner
Carbon can be used to reduce copper oxide
Method
