Download [PDF] October 2019 CAIE P1 Questions 1113 Science Cambridge Lower Secondary Checkpoint

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This document consists of 14 printed pages and 2 blank pages. IB19 10_1113_01/3RP © UCLES 2019 [Turn over   Cambridge Assessment International Education Cambridge Secondary 1 Checkpoint SCIENCE 1113/01 Paper 1 October 2019 45 minutes Candidates answer on the Question Paper. Additional Materials: Pen Calculator Pencil Ruler READ THESE INSTRUCTIONS FIRST Write your centre number, candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use an HB pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, glue or correction fluid. DO NOT WRITE IN ANY BARCODES. Answer all questions. You should show all your working in the booklet. At the end of the examination, fasten all your work securely together. 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.

2 © UCLES 2019 1113/01/O/N/19 1 The diagram shows a human stomach. muscles blood vessels and digestive cells in the stomach lining (a) Which term best describes the stomach? Circle the correct answer. cell organ organism system tissue Use information from the diagram to explain your answer. [2] (b) Red blood cells and muscle cells are found in the wall of the stomach. (i) Explain how the structure of a red blood cell is related to its function. [2] (ii) Explain how the structure of a muscle cell is related to its function. [2]

3 © UCLES 2019 1113/01/O/N/19 [Turn over 2 Look at the diagram. It shows a sealed bottle containing air particles. air particle (a) The air exerts a pressure on the sides of the bottle. Explain how air exerts a pressure. Use ideas about particles in your answer. [1] (b) The bottle is heated. What happens to the pressure inside the bottle? Explain your answer. Use ideas about particles. [2] (c) A bottle of perfume is left in a room. The top is taken off the bottle. The smell of the perfume eventually fills the room. What is the name of this process? Circle the correct answer. condensation conduction diffusion melting [1]

4 © UCLES 2019 1113/01/O/N/19 3 Chen looks at different sound traces with an oscilloscope. A B Describe what is happening to the sound from A to B. Choose words from decreases increases stays the same The pitch of the sound ...................................................................... . The frequency of the sound ....................................................................... . The volume of the sound ...................................................................... . The amplitude of the sound .................................................................... . [4]

5 © UCLES 2019 1113/01/O/N/19 [Turn over 4 This question is about completing a key to identify these four arthropods. bee ant millipedecentipede not to scale (a) Look at the key. The statements for boxes A, B and C are missing. Use the diagrams to complete A, B and C. arthropods A ................................................ ................................................ ................................................ B ................................................ ................................................ ................................................ C ................................................ ................................................ ................................................ yes yesno no ant bee yes no centipede millipede [3] (b) Spiders also belong to the arthropod group. Give one feature which separates a spider from the other four arthropods. [1]

6 © UCLES 2019 1113/01/O/N/19 5 Blessy investigates the reactions of the element carbon. Blessy uses a Bunsen burner to heat carbon. She lets the carbon burn in air. She then puts the burning carbon into a jar of oxygen. The diagram shows the apparatus Blessy uses. jar of oxygen carbon Universal Indicator solution burning (a) Carbon is an element. What is the chemical symbol for carbon? .......................................... [1] (b) The carbon reacts with the oxygen to make a gas. (i) What is the name of this gas? Circle the correct answer. carbon carbonate carbon dioxide carbon hydroxide carbon sulfate [1] (ii) The gas turns Universal Indicator solution orange. Suggest a pH value for the solution. pH ..................................... [1]

7 © UCLES 2019 1113/01/O/N/19 [Turn over 6 The diagram shows a black scabbard fish from the Atlantic Ocean. This fish is adapted to live in very deep water where there is very little light. (a) Describe how this fish is adapted to live where there is very little light. [1] (b) The black scabbard fish is a fast moving predator. (i) Suggest how the colour of this fish helps to make it a successful predator. [1] (ii) Describe two other adaptations that suggest that this fish is a fast moving predator. 1 2 [2]

8 © UCLES 2019 1113/01/O/N/19 7 Angelique finds information about the stopping distance of cars. The stopping distance is the distance a car moves after the driver wants to stop the car. speed thinking distance 21 metres 18 metres 15 metres 12 metres 9 metres 6 metres 75 metres 55 metres 38 metres 24 metres 14 metres 6 metres 32 km/h 48 km/h 64 km/h 80 km/h 96 km/h 11 2 km/h braking distance Angelique calculates the stopping distance for a car with a speed of 32 km/h. Here is her calculation. (a) Calculate the stopping distance for a car with a speed of 112 km/h. stopping distance = m [1] (b) Describe the pattern in the information for thinking distance. Complete the sentence. As the speed increases by 16 km/h the thinking distance [2] 6 m + 6 m = 12 m

9 © UCLES 2019 1113/01/O/N/19 [Turn over (c) Predict what the thinking distance will be at 128 km/h. m [1] (d) The speed of the car doubles from 32 km/h to 64 km/h. Answer the questions choosing words from decreases doubles halves more than doubles more than halves What happens to the thinking distance from 32 km/h to 64 km/h? What happens to the braking distance from 32 km/h to 64 km/h? What happens to the stopping distance from 32 km/h to 64 km/h? [2]

10 © UCLES 2019 1113/01/O/N/19 8 Safia investigates the rusting of iron. She puts iron nails into three different test-tubes. Each test-tube contains different conditions. The test-tubes are then left for one week. The diagram shows the test-tubes after one week. rust water iron nail damp air dry air C B A boiled water iron nail oil iron nail chemical used to remove wate r (a) The iron nail in tube A rusts. This is because the nail reacts with water and a gas found in air. What is the name of the gas? [1] (b) Complete the sentences about the investigation. The iron nail in tube B did not rust because The iron nail in tube C did not rust because [2] (c) Rusting is a reaction that is not useful. Explain why rusting is not a useful reaction. [1]

11 © UCLES 2019 1113/01/O/N/19 [Turn over 9 Pierre makes an electromagnet. cell switch iron nail coil of insulated wire Pierre wants to make a stronger electromagnet. What does he do? Circle the two correct answers. add another cell add another switch add more coils to the insulated wire change the iron nail to a wooden pencil remove the iron nail remove the switch turn the cell around [2]

12 © UCLES 2019 1113/01/O/N/19 10 Look at the diagram of a human skeleton. (a) Name the tissue which makes up the skeleton. [1] (b) Give two functions of the skeleton. 1 2 [2]

13 © UCLES 2019 1113/01/O/N/19 [Turn over 11 Jamila investigates the reaction of different metals with hydrochloric acid. The metals are magnesium, zinc and iron. She measures how long it takes for the reaction with each metal to make 50 cm 3 of hydrogen gas. (a) She thinks these variables are important in her investigation. A the metal used B the volume of hydrochloric acid used C the concentration of the hydrochloric acid used D the time to make 50 cm 3 of hydrogen gas E the temperature of the room Which letter shows the variable Jamila changes? Which letters show the three variables Jamila keeps the same? , and Which letter shows the variable Jamila measures to find out which metal reacts the fastest? [4] (b) Jamila predicts that hydrochloric acid will react fastest with zinc. Look at her results. metal time to make 50 cm 3 of gas in seconds magnesium 50 iron 280 zinc 200 Is Jamila’s prediction correct? Explain your answer. [2]

14 © UCLES 2019 1113/01/O/N/19 12 (a) Class 9 have a quiz about our solar system. Complete the answers. Solar System Quiz 1. Mercury, Earth and Mars are three of the inner planets of our solar system. What is the name of the other inner planet? …………………………………………………………………………………………………... 2. The most distant planet from Earth was Pluto. Pluto has now been classified as a dwarf planet instead of a planet. What is the name of the most distant planet from Earth? …………………………………………………………………………………………………... 3. What is the name of the object that all the planets in our solar system orbit? ………………………………………………………………………………………………….... [2] (b) Class 9 look at a photograph of the night sky. lines A camera normally lets light into it for a second. The camera that took this photograph let light into it for 30 minutes. What objects in the night sky make the lines on the photograph? Explain why they look like lines. [2]

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16 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. To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge Assessment International Education Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at www.cambridgeinternational.org after the live examination series. 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. © UCLES 2019 1113/01/O/N/19 BLANK PAGE