*WASSCE 2025* INTEGRATED SCIENCE TRIAL TEST. *We are available for wassce, BECE and CTVET* DITO DITO QUESTIONS AND ANSWERS WILL BE AVAILABLE 💯💯💯💯 QUESTION 1 a. i. List two raw materials used in the manufacture of indigenous soap. ii. State three ways of improving upon the quality of indigenous soap. b. Explain three (3) ways in which the human sperm cell is adapted to its function. c. State four (4) human activities that result in the depletion of soil resources. d. Describe how the relative density of salt solution can be determined using the hydrometer. QUESTION 2 https://whatsapp.com/channel/0029VaEW2JPEawdvPSdOBG1m a. Explain the term tissue as applied to living organism. b. An atom Y has atomic number 15. It accepts three electrons in order to become stable. Determine the: i. number of protons of the atom. ii. number of electrons after accepting electrons. iii. Charge on the atom before accepting electrons iv. Charge on the atom after accepting electrons. c. i. Explain the term weaning as used in rabbit production. ii. State three (3) advantages of weaning. d. i. State two (2) reasons why it is important to know the blood group of a person. ii. Explain briefly why a father with blood group AB cannot produce a child with blood group O when he marries a woman of blood group O. e. i. State Ohm’s law. Ii. Two resistors of resistance 10Ω and 20Ω are connected in parallel to a battery of emf. 12V. Calculate the current through the 20Ω resistor. QUESTION 3 a. i. What is an organic fertilizer? ii. Give three (3) examples of organic fertilizer that could be used in maize production. b. State i. Two industrial uses of each of the following α. aluminum. β. Copper. ii. three(3) reasons why gold is regarded as a metal. c. A force acts on a body of mass 15g and causes the body to move with acceleration of 40.0ms-2 . _0542743763 Calculate the force acting on the body. d. i. Give one reason why trypanosomiasis is considered as a parasite. ii. State two (2) ways of controlling trypanosomiasis. https://whatsapp.com/channel/0029VaEW2JPEawdvPSdOBG1m QUESTION 4 a. i. Name the four (4) parts of a complete flower. ii. Which two of the parts mentioned in (i) are the reproductive part of the flower? b. i. Arrange the following component of the electromagnetic spectrum in order of increasing wavelength; red light, blue light, microwaves, x-rays. ii. State one use of α. Microwaves. β. X-rays c.i. What is ionic bond? ii. Name the type of bond in each of the following compounds α. Calcium oxide. β.methane ȣ. Copper (II) oxide Y. methanol. d. State two(2) functions of each of the following plant nutrients i. nitrogen ii. Phosphorus. QUESTION 5 a. i. What is meant by the term seed dispersal? ii. State three (3) ways in which seed dispersal is important. b. i. Define potential energy. ii. A 400g orange on a tree is 120cm above the ground. Calculate the potential energy of the orange. [g=10ms-2 ]. c. Give two (2) examples each of the following types of fertilizer i. inorganic fertilizer ii. Organic fertilizer d. Three liquids, dilute acid solution, alkaline solution and distilled water were kept in unlabeled identical reagent bottles. Describe briefly a test that could be performed to identify each of the liquids. QUESTION 6 a.i. What is meant by the term modern technology? ii. Give three (3) reasons for the lack of improvement of technology in Ghana. b.i. Explain the term convection as used in heat energy. ii. Explain convection cannot take place in solids. c.i. Differentiate between soil erosion and soil depletion. ii. Give three (3) effects of soil erosion on agricultural productivity. https://whatsapp.com/channel/0029VaEW2JPEawdvPSdOBG1m