Cambridge Lower Secondary Science 9: End-of-Year Test PDF

CAMBRIDGE LOWER SECONDARY SCIENCE 9: END-OF-YEAR TEST Name ___________________________________ Date _____________ Disclaimer: This test and mark scheme have been written by the authors. End-of-year test Questions...

CAMBRIDGE LOWER SECONDARY SCIENCE 9: END-OF-YEAR TEST Name ___________________________________ Date _____________ Disclaimer: This test and mark scheme have been written by the authors. End-of-year test Questions Biology 1 Sofia and Zara count the flowers on several different plants that all belong to the same species. They write down their results. a How many plants did Sofia and Zara use in their experiment? _______________ b Use the girls’ results to complete the results table. Number of flowers on 1 2 a plant Number of plants 2 Cambridge Lower Secondary Science 9 – Mary Jones, Diane Fellowes-Freeman and Michael Smyth © Cambridge University Press 2021 1  CAMBRIDGE LOWER SECONDARY SCIENCE 9: END-OF-YEAR TEST c Use the results to complete the bar chart. Draw the bars so that they touch each other. Cambridge Lower Secondary Science 9 – Mary Jones, Diane Fellowes-Freeman and Michael Smyth © Cambridge University Press 2021 2  CAMBRIDGE LOWER SECONDARY SCIENCE 9: END-OF-YEAR TEST d Which word is used to describe these differences between the plants? Circle the correct answer. chromosomes selection species variation 2 a Complete the word equation for photosynthesis. carbon +  + dioxide b Name the part of a plant cell in which photosynthesis takes place. ______________________________ Cambridge Lower Secondary Science 9 – Mary Jones, Diane Fellowes-Freeman and Michael Smyth © Cambridge University Press 2021 3  CAMBRIDGE LOWER SECONDARY SCIENCE 9: END-OF-YEAR TEST 3 Draw one line from each word to its description. Words Descriptions a structure made of DNA that contains genes gamete to do with the kidneys the passing on of genes from chromosome parents to offspring complete disappearance of a extinction species for ever a sex cell, for example an egg renal or a sperm the tissue in which water is transported in plants Cambridge Lower Secondary Science 9 – Mary Jones, Diane Fellowes-Freeman and Michael Smyth © Cambridge University Press 2021 4  CAMBRIDGE LOWER SECONDARY SCIENCE 9: END-OF-YEAR TEST Chemistry 4 When the metal magnesium is placed in a test tube with nitric acid, it reacts to form the salt magnesium nitrate. Why is it not possible to make copper nitrate by adding copper metal to nitric acid? _______________________________________________________________________________ 5 To make a solution of the salt potassium nitrate by neutralisation: a Which acid would you need to use? ____________________________________________________________________________ b List the equipment would you need to use. ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ c What are the risks involved with this process and how would you try to overcome them? ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ 6 In the investigation shown, the rate of reaction is found by measuring the volume of gas given off every 30 seconds. a What is the name of the gas? _______________________________________________________________________________ Cambridge Lower Secondary Science 9 – Mary Jones, Diane Fellowes-Freeman and Michael Smyth © Cambridge University Press 2021 5  CAMBRIDGE LOWER SECONDARY SCIENCE 9: END-OF-YEAR TEST b Use these results to plot a graph to show how the rate of reaction changes during the course of this reaction. Total volume gas Time in s produced in cm3 130 10 130 16 160 34 190 48 120 56 150 74 180 82 210 83 240 83 c Identify any result that does not fit the pattern. ____________________________________________________________________________ 7 Which of the following would increase the rate of reaction? Tick (✓) two boxes. Using the calcium carbonate as a powder. Using the calcium carbonate as large pieces. Using a more dilute acid. Placing the flask of calcium carbonate and acid in a water bath at 50 °C. Cambridge Lower Secondary Science 9 – Mary Jones, Diane Fellowes-Freeman and Michael Smyth © Cambridge University Press 2021 6  CAMBRIDGE LOWER SECONDARY SCIENCE 9: END-OF-YEAR TEST 8 Draw a labelled diagram of the atomic structure of lithium. The atomic number is 3 and the mass number is 7. Cambridge Lower Secondary Science 9 – Mary Jones, Diane Fellowes-Freeman and Michael Smyth © Cambridge University Press 2021 7  CAMBRIDGE LOWER SECONDARY SCIENCE 9: END-OF-YEAR TEST Physics 9 Nitrogen is a gas. Use this information to explain why: a nitrogen is less dense than copper ____________________________________________________________________________ ____________________________________________________________________________ b bubbles of nitrogen in water move upwards through water. ____________________________________________________________________________ ____________________________________________________________________________ 10 The diagram shows a waveform. Each square on the grid represents 1 cm × 1 cm. a State the amplitude of this waveform. ______________________________ cm b The waveform in the diagram is caused by a sound wave. The sound changes to have higher pitch. The loudness of the sound does not change. How will this waveform change? Tick (✓) one box. Only the height of the waveform will increase. Only the number of waves on the grid will decrease. More waves will be seen on the grid and the height will increase. More waves will be seen on the grid but the height will not change. Cambridge Lower Secondary Science 9 – Mary Jones, Diane Fellowes-Freeman and Michael Smyth © Cambridge University Press 2021 8  CAMBRIDGE LOWER SECONDARY SCIENCE 9: END-OF-YEAR TEST 11 The table shows the names of some components and some of their circuit symbols. Name Circuit symbol variable resistor fixed resistor a Complete the table with the missing names and circuit symbols. b A variable resistor is connected in series with a lamp. Write true or false for each of these statements. The variable resistor can be used to change the current through the lamp: _______________ The variable resistor can be used to change the brightness of the lamp: _______________ 12 Look at the circuit diagram. Which statement is correct about the current through each lamp. Tick (✓) one box. current through L1 + current through L2 = current through L3 current through L1 + current through L3 = current through L2 current through L2 + current through L3 = current through L1 current through L1 = current through L2 = current through L3 Cambridge Lower Secondary Science 9 – Mary Jones, Diane Fellowes-Freeman and Michael Smyth © Cambridge University Press 2021 9  CAMBRIDGE LOWER SECONDARY SCIENCE 9: END-OF-YEAR TEST 13 The circuit in the diagram contains a lamp and buzzer. a Make one copy of the circuit diagram in the space below and add: a meter to measure the current in the circuit a meter to measure the voltage across the lamp b State the effect of adding another lamp in series on: i the current in the circuit _________________________________________________________________________ ii the voltage across the buzzer _________________________________________________________________________ iii the brightness of the original lamp _________________________________________________________________________ Cambridge Lower Secondary Science 9 – Mary Jones, Diane Fellowes-Freeman and Michael Smyth © Cambridge University Press 2021 10