Potted plant. Image credit hotstyledesign.com ZIMSEC O Level Combined Science: The test for starch
Aim: To test whether light is required for the photosynthesis process.
Materials
A potted plant, cardboard or aluminum foil, scissors, paper clips or tape, equipment for the start test.
Method ![Image credit [...]
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Starch food. Image credit eurofins.com ZIMSEC O Level Combined Science Notes: The enzyme amylase
The effect of loss and gain of water in plants respectively. Image credit slideshare.net ZIMSEC O Level Combined Science Notes:Water and ion uptake in plants
Guava fruits are juicy and the seeds are can resist digestion. Image credit plantvillage.org ZIMSEC O Level Combined Science Notes: Reproduction in plants: Reproduction in Plants:The dispersal of plant seeds
Worms are part of the soil’s biological components. Image credit wageingenur.nl ZIMSEC O Level Combined Science Notes: Biological components of the soil
Melting ice. Image credit flemox.com ZIMSEC O Level Combined Science Notes: Changes in state
When a solid item is heated the forces of attraction between the particles become weaker
as a result the particles move more quickly
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Iodised salt can prevent iodine deficiency ZIMSEC O Level Combined Science Notes: Deficiency Diseases
Iodine ![Goitre is a [...]
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ZIMSEC O Level Combined Science Notes: The reduction process
The reduction of copper.
Rate of reactions. Image credit about.com ZIMSEC O Level Combined Science Notes: The speed of reactions
Refining copper using electrolysis ZIMSEC O Level Combined Science Notes: Experiment: Purification of copper using electrolysis
Aim: To investigate the process of refining copper using electrolysis
Materials: two strips of copper, sandpaper, copper sulphate solution, 12 volt dc supply/battery, beaker, ammeter/bulb
Method
