https://validator.w3.org/feed/docs/rss2.html Sodium chloride is added to pure water<br> How does this affect the melting point and the pH of water? 2017 At which part of the curve is the substance a mixture of solid? The graph below shows a heating curve of a substance.<br>The curve is not drawn to scale. Which of the following actions will affect the pitch of the sound from a guitar? Which two substances produce carbon dioxide when reacted together? The diagram below shows a longitudinal wave with some lengths labelled P,Q,R and S.<br>Which letter represents the wavelength? The diagrams below show iron bars being magnetised to make electromagnets<br><strong>1</strong> and <strong>2</strong>. One end of electromagnet 1 is labelled X while one end of electromagnet 2 is labelled Y. <br>Which magnetic poles are producfed at X and at Y ? The table below shows the distance travelled by a car measured at intervals of 2 hours.<br>What is the average speed of the car? The table below shows the distance travelled by a car measured at intervals of 2 hours. What are the main energy changes that take place in a thermal power station? Which of the following objects is <strong>not</strong> a source of electrical energy? The diagram below shows information cards about three electrical appliances.<br>The cards are labelled <strong>P, Q</strong> and <strong>R</strong>.<br>Which row shows the decreasing order of electrical energy consumption by<br>the appliances in one hour? Which of the following environmental challenges is <strong>most</strong> likely to be caused by<br>human activity? The diagram below shows a boat travelling at a speed of 10km/h in a direction opposite to the water flow in a river. The river flows in the eastern direction at a speed of 4km/h<br>What is the resultant velocity of the boat? A measuring cylinder contains 45 cm<sup>3</sup> of water. Ten identical copper pellets are<br>lowered into water in the cylinder. The water level in the measuring cylinder rises to 65 cm<sup>3</sup>. The mass of <strong>each</strong> of the copper pellets is 18 g.<br>What is the density of the copper The diagram below shows containers <strong>M</strong> and <strong>N</strong> floating in paraffin. The containers<br>are of the same size but made from different material.<br>Which statement about the containers is <strong>true</strong>? The diagram below shows containers M and N floating in paraffin. The containers <br>are of the same size but made from different materials. Which quantity in the table is matched with its SI unit? Home Page The diagram below shows a weather map. <br>What is likely to be the state of weather at point J? Form 1 Science Material Slide 3 Science and Technology Form 3 Science Material The table below shows the percentage by mass of different nutrients in food <br>samples <strong>E,F,G and H.</strong> <br>Which food sample is <strong>most</strong>appropriate for a pregnant woman? The graph below represents the number of bacteria on a piece of meat over a few <br>days. <br>At which phase on the graph are conditions <strong>least</strong>favourable for the growth of <br> bacteria? The diagram of a flower is shown below. <br>Which part will develop into a fruit after fertilisation? Which statement is an example of absorption? Which food sample is <strong>most</strong>appropriate for a pregnant woman? At which phase on the graph are conditions <strong>least</strong>favourable for the growth of <br> bacteria? At what level of cell organisation is the stomach? Where in the digestive system is bile produced and where does it work? Which part will develop into a fruit after fertilisation? What is the blood group of a universal recipient? which functions are the human skeleton? The list below consists of functions of some of the human body systems.<br> (i) Produces bone marrow <br> (ii) Transmits electrical impulses <br> (iii) Keeps internal organs in proper shape <br> (iv) Stores minerals <br> Which functions are of the human skeleton? The list below consists of functions of some of the human body systems.<br>(i)Produces bone marrow <br>(ii)Transmits electrical impulses<br>(iii)Keeps internal organs in proper shape<br>(iv) Stores minerals <br>Which functions are of the human skeleton? The activities (i) to (iv) listed below are steps taken when testing a green leaf for the<br> presence of starch. They are not necessarily presented in the correct order. <br> (i) Put the leaf in warm water <br> (ii) Boil the leaf in alcohol <br> (iii) Add a few drops of iodine solution <br> (iv) Boil the leaf in water <br> Which is the correct order of the steps followed when testing a green leaf for the <br> presence of starch? Study the identification key below <br> Which characteristic about organism <strong> X </strong> is true? Which of the following birth control methods is 100% effective? Which of the following disease is <strong> not </strong> transmitted through sexual contact? 2015 The diagram below shows the thickness of a uterus lining during a menstrual cycle. <br> During which day does menstruation start in the cycle? The diagram below shows part of the digestive system. <br> During digestion a liquid is produced by part J and released into part K. <br> What is the function of this liquid? The diagram below shows a steel bar being magnetised using two bar magnets. <br> Which are poles are produced at P and R once the steel bar is magnetised ? The diagram below show waveforms for different sounds. <br> Which waveform showsa sound with the highest frequency? Which of the following objects is not studied as a part of astronomy? Which of the following will increase the sensitivity of a thermometer? The diagram below shows an electric circuit in which a 10 resistor is connected to a 2o V battery <br> What is the amount of current flowing through a circuit?