DR. TABI'S EXAMS LINK *WASSCE 2025 TRY QUESTIONS* *INT.SCIENCE* 1. (a) (i) What is corrosion? (ii) State two factors that can promote corrosion. (b) (i) What is biotic factor? (ii) Explain how three biotic factors are useful in forest habitat. (c) (i) What is the center of gravity of a body? (c) Name the type of bonds present in each of the following substances; (i) Ammonium chloride (ii) Ethane (iii) Carbon dioxide (iv) Calcium Chloride (d) Name three equipment used for harvesting fish from a pond. (ii) Explain why a body balances at its center of gravity. iii) State why it is important to treat water. (iv) Enumerate five methods of improving upon the quality of water for domestic use. (iiv) Give four qualities of loam soil that makes it suitable for crop production. 2 (a) (i) What is meant by excretion? (ii) Give two excretory Products of each of the following organs: (α) Lungs (β) kidney (γ) skin. 3marks (b) (i) State three main difference between ice and water. (ii) Give two reasons why the melting of ice is considered as a physical change. (c) (i) State the major components of soil. (ii) Give two farming practices which prevent soil erosion. d) (i) Name the most appropriate instrument for taking each of the following measurements: (α) diameter of a wire of radius 1.8mm, (β) Length of piece of wood 11.5cm long, (γ) Internal diameter of a beaker of radius 3.32cm. (ii) Name three devices whose operations depend on the effect of pressure on fluids. 3 (a) (i) What is a backyard garden? (ii) State three factors that should be considered when choosing a site for garden. (b) (i) What is temporary hardness of water? (ii) Describe briefly how a mixture of granulated sugar and sand can be separated. (c) (i) Define the following types of motion and given one example of each. (α) Linear motion (β) Circular motion, (γ) Random motion. (d) (i) Explain briefly why air – craft and boats are constructed in a stream line form. (ii) Give three reasons for classifying organisms. (iii) What is binomial system of nomenclature? 4 (a) (i) What is female genital mutilation? (ii) Explain why female genital mutilation should be stopped. (b) (i) What are convectional Currents? (ii) Explain briefly why smoke from burning bush is spread by moving air masses. (c) (i) Explain the following statement: (α) Pure water is neutral. (β) A sodium hydroxide is an alkaline. (ii) Give two uses of: (α) acid – base indicators. (β) sodium trioxocarbonate (IV). (d) (i) What is brooding in poultry production? (ii) Explain two methods of preserving eggs in poultry. 0542743763 5 (a) (i) What is osmosis? Explain how the root of a plant obtains energy. (b) (i) What is an ester? (ii) State one use of each of the following substances: (α) hydrogen (β) sodium hydroxide (c) (i) Explain how earthquake comes about. (ii) List three effects of earthquakes. (d) State three types of erosion and how it can be prevented Chat us for more try questions 👇🏻👇🏻👇🏻👇🏻👇🏻👇🏻 *Integrated science predicted areas* * technology and it importance * Cell, tissues.. * land degradation * Mole Concept * Machine ( efficiency, mechanical advantage, and lever ) * STDs( prevention and teenage pregnancy) * Transistors * Radioactivity ( negative effects of nuclear explosion) * Soil fertility * Crop production * Genetic Variation * DNA ( why DNA testing is important) * Depression and the causes * Heat ( Causes burns at the market places, heat transfer... ) * Concentrated and saturated solution ( acids) * Flooding ( measures and causes ) *velocity, acceleration ( calculations, definitions .. ) * Practical *Confirmed areas will be available in the month of May* 👉👉 0542743763 ..... Just inbox 0542743763 for your exams updates https://whatsapp.com/channel/0029VaEW2JPEawdvPSdOBG1m