A house built using Eco friendly materials. Image credit asiagreenbuildings.com ZIMSEC O Level Combined Science Notes: Factors to consider when choosing construction materials
Wooden pulleys. Image credit wisegeek.com ZIMSEC O Level Combined Science Notes: Machines: Pulleys
Burning food to to test its energy content ZIMSEC O Level Combined Science Notes: Experiment: Food and Energy
Aim: Comparing the energy value of foods
Materials: burners, small containers/beakers to hold the water, food holders, thermometers, different types of starchy and fatty foods
Method
A Zimbabwean family ZIMSEC O Level Combined Science Notes: Reproduction in Humans
Image credit singleblackmale.org ZIMSEC O Level Combined Science Notes: Sexually Transmitted Infections (STIs)
To access more topics go to the Combined Science Notes page
Safe use of chemicals. Image credit montana.edu ZIMSEC Combined Science Notes: Safety when using chemicals
Lime water is used to test for carbon dioxide. Image weebly.com ZIMSEC O Level Combined Science Notes: Inhaled vs Exhaled air experiment: Method 1
Aim: Test to compare the composition of exhaled and inhaled air.
Materials: Limewater (to test for the presence […]
Different types of food have different functions. Image credit healthydietadvisior.com ZIMSEC O Level Combined Science Notes: Food types and their importance
Growing mulberry cuttings. Image credit wordpress.com ZIMSEC O Level Combined Science Notes: Reproduction in plants: Growing plants using the vegetative reproduction method
Materials; trays of soil/sand or prepared garden beds, plant cuttings of sugar cane, mulberry, sweet potato cuttings etc
Method ![Plant [...]
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SeedCo trial fields are used for breeding seeds. Image credit