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SCIENCE_01_S9_7RP © UCLES 2018 *1882046800* Cambridge Lower Secondary Progression Test Science paper 1 Stage 9 45 minutes Name ………………………………………………….………………………. Additional materials: Calculator Ruler READ THESE INSTRUCTIONS FIRST Answer all questions in the spaces provided on the question paper. You should show all your working on the question paper. The number of marks is given in brackets [ ] at the end of each question or part question. The total number of marks for this paper is 50. For Teacher’s Use Page Mark 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Total2 S/S9/01 © UCLES 2018 For Teacher’s Use 1 The diagram shows a plant with variegated leaves. Some areas of the leaves are green and some are white. green area white area (a) Plants use photosynthesis to make food so they can grow. Complete the word equation for photosynthesis. ++ ............................. .......................................................... .......................................................... .......................................................... ............................. [2] (b) This plant with variegated leaves does not grow as fast as another plant with only green leaves. Suggest a reason for this. ...................................................................................................................................... [1]
3 S/S9/01 © UCLES 2018 [Turn over For Teacher’s Use 2 The graph shows the volume of gas made during a chemical reaction involving an acid. 0 0 10 20 30 total volume of gas in cm 3 40 50 10 20 30 time in seconds 40 50 60 70 80 90 100 (a) Complete the sentences to describe the pattern shown on the graph. Between 0 and 48 seconds the volume of gas ..................................................... . After 48 seconds the reaction ..................................................... . [2] (b) The experiment is repeated using a lower concentration of acid. All other factors are kept the same. What happens to the rate of reaction when the concentration of acid is lower? ...................................................................................................................................... [1] (c) Increasing the temperature will increase the rate of reaction. Explain why. Use ideas about particles and collisions in your answer. .......................................................................................................................................... .......................................................................................................................................... ...................................................................................................................................... [2]
4 S/S9/01 © UCLES 2018 For Teacher’s Use 3 A class investigates food chains. They plan to sample insects in their school grounds using pitfall traps, pooters and sweep nets. thin cotton sheet pitfall trap pooter sweep net (a) (i) Draw a line from each piece of collecting equipment to the type of insect the class plans to sample. collecting equipment type of insect pitfall traps flying insects pooters insects crawling on plants sweep nets insects in leaf litter which are active at night [1] (ii) The class want to estimate the number of insects in their school grounds. Describe how they can make the estimate reliable. ..............................................................................................................................[1] (iii) Carlos and Blessy use a pooter. Describe one possible safety risk of using a pooter. ..............................................................................................................................[1]
5 S/S9/01 © UCLES 2018 [Turn over For Teacher’s Use (b) The students investigate a food chain involving beetles, caterpillars and leaves. They set up three dishes. They look at the dishes after one day. The diagram shows the results of their investigation. at start after one daybeetle caterpillar leaf key dish 1dish 2dish 3 (i) Complete the food chain for the three organisms. .............................. .............................. .............................. [2] (ii) Explain how you worked out your answer from the results in each dish. dish 1 ........................................................................................................................ dish 2 ........................................................................................................................ dish 3 ........................................................................................................................ [2]
6 S/S9/01 © UCLES 2018 For Teacher’s Use 4 Look at the circuit diagrams. A DEBC (a) Complete the table. Put ticks ( ) into the correct columns. circuit parallel series does not work A B C D E [3] (b) All the lamps are identical. All the batteries are identical. Which two circuits have lamps with the same brightness? ......................................................... and ......................................................... . Explain why. .......................................................................................................................................... ...................................................................................................................................... [2]
7 S/S9/01 © UCLES 2018 [Turn over For Teacher’s Use 5 Look at the diagram. It shows some of the elements in the Periodic Table. H Li Na K Be Mg Ca B Al C N O F Cl Ne He transition elements (a) Use this Periodic Table to answer these questions. (i) Write down the chemical symbol of the most reactive element in Group 2. ..............................................................................................................................[1] (ii) Write down the chemical symbol of the atom with only six electrons. ..............................................................................................................................[1] (b) Look at the elements in Period 2 of the Periodic Table. Write down the chemical symbol of the element with the most protons in each atom. ...................................................................................................................................... [1] (c) Look at the diagram of an atom of an element. nucleus X X X XX (i) To which group of the Periodic Table does this element belong? ..............................................................................................................................[1] (ii) What is the number of protons in the nucleus of this atom? ..............................................................................................................................[1]
8 S/S9/01 © UCLES 2018 For Teacher’s Use 6 Youssef has four varieties of goldfish. Here is a key for the varieties. light spotted dark striped A = B = C = D = Here are Youssef’s four varieties of goldfish. A CDB (a) Youssef wants a new variety that has spots and stripes. Which two fish does he breed? Choose from A, B, C and D. ................... and ................... [1]
9 S/S9/01 © UCLES 2018 [Turn over (b) Here is a diagram of the three varieties of offspring. E F G What should he do now to get more of the variety that have spots and stripes? .......................................................................................................................................... ...................................................................................................................................... [2]
10 S/S9/01 © UCLES 2018 For Teacher’s Use 7 The density of any solid, liquid or gas can be calculated. (a) A solid has a mass of 12 g. It has a volume of 3.2 cm 3. Calculate the density. .......................................................................................................................................... .......................................................................................................................................... density of solid ......................................................... [3] (b) What is the unit of the density you have calculated in part (a)? unit ......................................................... [1]
11 S/S9/01 © UCLES 2018 [Turn over For Teacher’s Use 8 Look at the diagram. It shows some metals in order of reactivity. potassium sodium calcium magnesium aluminium zinc iron tin lead copper silver gold platinum most reactive least reactive Use the diagram and your scientific knowledge to answer these questions. (a) Some metals displace other metals from their compounds. Which two combinations of metal and compound give a displacement reaction? Tick ( ) the two correct answers. copper and lead chloride lead and silver nitrate magnesium and sodium chloride tin and copper chloride zinc and magnesium nitrate [2] (b) (i) Calcium reacts with cold water. Write down the name of one other metal that reacts with cold water. ..............................................................................................................................[1] (ii) When calcium reacts with water an alkali and a gas are produced. Complete the word equation for the reaction between calcium and water. ++ ............................. .......................................................... .......................................................... .......................................................... ............................. [2]
12 S/S9/01 © UCLES 2018 For Teacher’s Use 9 Carlos draws a diagram to show evaporation. liquidsmall circle (a) What do the small circles represent? ...................................................................................................................................... [1] (b) What do the arrows represent? ...................................................................................................................................... [1] (c) Explain how evaporation causes the liquid to cool down. .......................................................................................................................................... .......................................................................................................................................... ...................................................................................................................................... [2]
13 S/S9/01 © UCLES 2018 [Turn over For Teacher’s Use 10 A new road is built through a forest. forest Many trees must be removed to build the road. (a) Removing trees changes the amounts of some gases in the atmosphere. (i) Complete the sentence. When trees are removed the amount of carbon dioxide ............................................ and the amount of oxygen ......................................................... . [1] (ii) Explain your answer. .................................................................................................................................. ..............................................................................................................................[1] (b) Animal populations decrease when the trees are removed. Give two reasons why. 1 ....................................................................................................................................... 2 ....................................................................................................................................... [2]
14 S/S9/01 © UCLES 2018 For Teacher’s Use 11 Mia decides to make a salt called calcium nitrate. Mia adds calcium carbonate to dilute nitric acid. The sentences A to E describe part of the method she uses. Complete sentences B and D. A An excess of calcium carbonate is added to dilute nitric acid. B The excess insoluble calcium carbonate is removed by ................................................ . C The filtrate is put into an evaporating dish. D The filtrate is heated until the first ......................................................... appear. E The solution is left to crystallise. [2] 12 A class is given some questions about pressure. Their teacher gives them an equation to help them. pressure = force area Answer the questions. (a) A force of 200 N acts on an area of 2 m 2. (i) What is the pressure? ............................................. N / m2 [1] (ii) The same 200 N force acts on an area greater than 2 m 2. What happens to the pressure? ..............................................................................................................................[1] (b) A force of 100 N causes a pressure of 25 N / m2. What area does it act on? .................................................. m 2 [1]
15 S/S9/01 © UCLES 2018 BLANK PAGE
16 S/S9/01 © UCLES 2018 Copyright © UCLES, 2018 Cambridge Assessment International Education is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of the University of Cambridge Local Examinations Syndicate (UCLES), which itself is a department of the University of Cambridge. Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. BLANK PAGE