Safety Equipment Image credit nexomundo.com ZIMSEC O Level Combined Science Notes: Safety wear
Quick NetOne, Econet, And Telecel Airtime Recharge
Potted plant. Image credit artificialplantsandtrees.com ZIMSEC Combined Science Revision Notes: Do plants release carbon dioxide when they respire?
Aim: To determine whether all living things, including plants, release carbon dioxide when they respire.
Materials: bell jar or a large container, 3 boiling tubes/flasks glass or rubber tubing, lungs, suction […]
Transpiration occurs mainly through the leaves. Image credit desk7.net ZIMSEC O Level Combined Science Notes: Investigating water loss in plants
Aim: To determine how plants loose their water
Materials: plants or branches from plants, weighing balance, containers, water, oil/Vaseline.
Soil profile. Image credit nesoil.com ZIMSEC O Level Combined Science Notes: Ecosystems: The soil
The carbon cycle. Image credit windows2universe.org ZIMSEC O Level Combined Science Notes: The Carbon cycle
A bottle of methylated spirit. Image credit wilko.com ZIMSEC O Level Combined Science Notes: Experiment: to show the cooling effect of methylated spirits
Material: cotton wool,methylated spirits
Method
Copper wires. Image credit globalminingobserver.com ZIMSEC O Level Combined Science Notes: Common metals and their uses
Copper
Universal paper can be used to test the acidity of a solution. Image credit MediaWiki ZIMSEC O Level Combined Science Notes: Experiment: The properties of acids
Aim: Investigating the properties of acids
Materials: Dilute hydrochloric acid, vinegar, lemon juice, […]
ZIMSEC O Level Combined Science Notes: Experiment: investigating reversible reactions
Aim: Investigating reversible reactions
Materials: boiling tube, test tubes, copper sulphate crystals,solid ammonium chloride, red litmus paper, blue litmus paper, dilute hydrochloric acid, sodium hydroxide solution, potassium chromate solution, tongs
Heating ammonium chloride. Image credit youtube.com
Method A
Copper plating iron ZIMSEC O Level Combined Science Notes: Experiment: Copper plating an iron nail
Aim: Copper plating an iron nail
Materials: beaker, copper sulphate, dilute sulphuric acid, iron nail, copper electrode, amateur, 1.5V torch cells, sandpaper
Method
