Testing fuel to determine its energy content ZIMSEC O Level Combined Science Notes: Experiment:investigating fuel efficiency
Aim: To determine the amount of heat liberated when different liquid fuels burn
Materials: 2 spirit burners, wooden block, clamp and stand, meths, paraffin, thermometer, draught shields, clamp, beaker, water, tripod […]
ZIMSEC O Level Combined Science Notes: Experiment: Finding the resistance of a resistor using a voltmeter
Aim: To find the resistance of a resistor in a circuit using voltmeter
Materials: cells, ammeter, resistor,switch, leads with crocodile clips
Finding Resistance
Method
Hwange Power Plant. Image credit chronicle.co.zw ZIMSEC O Level Combined Science Notes: Introduction:Motors and generators
Rectangular foam rubber can be used to show the effects of forces. Image credit shopify.com ZIMSEC O Level Combined Science Notes: Experiment: The effect of different forces on sponge rubber
Aim: To show the effects of forces on […]
Reinforced concrete. Image credit surfcivil.blogspot.com ZIMSEC O Level Combined Science Notes: Metal and metal alloy properties and their construction uses
ZIMSEC O Level Combined Science Notes: Experiment:Finding the mechanical advantage of an inclined plane
Aim: Finding the Mechanical Advantage of an inclined plane
Materials: 1m long plank, sandpaper, bricks. cotton reel, nails, thick steel wire, wood block (smoothed on the underside) weights/tin and sand, pliers, string, spring balance/scales
Finding the […]
Syringes showing how a hydraulic machine works ZIMSEC O Level Combined Science Notes: Experiment: To show how a hydraulic Machine increases force
Aim: To show how a hydraulic machine increases force
Materials: small syringe, syringe with larger diameter, plastic tube, water, ruler
Method
Zimbabwe nurse and health worker. Image credit icrc.org ZIMSEC O Level Combined Science Notes: Disease:Immunity and Immunisation
HIV and Its effects
Sterility can cause strain in a relationship. Image credit colossiansfamilynetwork.org ZIMSEC O Level Combined Science Notes: Causes of infertility
Tomato plant with red mite. Image credit thedemogadern.org ZIMSEC O Level Combined Notes: Pest Control
