Year 6 End of Year Exams Revision Questions and Mark Scheme

Transcription

1 Year 6 End of Year Exams Revision Questions and Mark Scheme Q1. Ben makes a series circuit using two identical cells, a bulb and a switch to turn the bulb on and off. (a) Draw a circuit diagram of Ben s circuit. Use the correct symbols. The cells have been drawn for you. 3 marks (b) Which part of the circuit supplies the energy?... (c) Ben adds another identical bulb to the circuit in series. How does the brightness of the first bulb change?... (d) How will the brightness of the bulbs change when the cells shown below are placed into Ben s circuit? (i) maximum 7 marks Page 1

2 2. Pressure pads can be used to set off burglar alarms. The alarm is set off when someone steps on the pad. The alarm works by sounding a buzzer or switching on a lamp or both. The symbols for a pressure pad, a two way switch, a buzzer and a lamp are shown below. Here are five circuit diagrams. Look carefully at the five circuit diagrams. Tick the correct box to show what is happening in each circuit. Page 2

3 5 marks Q3. The diagram below shows three trolleys. Peter put a bar magnet on each trolley. (a) He pushed trolleys A, B and C together. Magnet B attracted magnet A. Magnet B repelled magnet C. On the diagram above, label the north and south poles of magnets A and C. Use the letters N and S. 2 marks (b) Peter turned trolley B around. Trolleys A and C were not turned around. What would happen now when Peter pushed them all together? Use either attract or repel to complete each sentence below. Magnet B would... magnet A. Magnet B would... magnet C. Page 3

4 (c) Peter held two trolleys close together and then let go. The magnets repelled each other. Draw an arrow on both magnets to show which way they would move. (d) Peter took a magnet, a steel bar and an aluminium bar. He put them on three trolleys as shown below. (i) What happens to the steel bar as he moves it closer to the magnet?.. What happens to the aluminium bar as he moves it closer to the magnet?.. Q4. (a) Debbie put a paper cup into a glass beaker. She glued a magnet in the bottom of the paper cup. She glued another magnet in the bottom of the beaker. The magnets repelled. maximum 6 marks diagram A not to scale Page 4

5 What two forces act on the paper cup and its contents to keep it in this position? (b) Debbie put 5 g of aluminium rivets into the paper cup. It moved down a little as shown in diagram B. diagram B not to scale Debbie plotted a graph to show how the mass of aluminium rivets affected the distance the cup moved down. (i) Use the graph to find the mass that made the cup move down 4 mm.... g Why did the graph stay flat with masses greater than 40 g? Page 5

6 (c) Debbie removed the 5 g of aluminium rivets and put 5 g of iron nails into the cup. diagram C not to scale The paper cup moved down more with 5 g of iron nails than with 5 g of aluminium rivets as shown in diagram C. Give the reason for this maximum 5 marks Q5. Kala recorded temperatures using a datalogger and three temperature sensors, P, Q and R. The ends of the sensors were covered with gauze. P was kept dry. Q was dipped in water for 2 seconds and then taken out. R was dipped in ethanol for 2 seconds and then taken out. Page 6

7 Every five minutes, the datalogger recorded the temperatures of the sensors. time, in min temperature of sensor P, in C temperature of sensor Q, in C temperature of sensor R, in C (a) What was the temperature of the room at the beginning of Kala s experiment?... C (b) Describe how the temperatures of sensor Q and sensor R changed. sensor Q sensor R marks (c) The next day the gauze on sensor Q felt dry. What had happened to the water on the gauze?... Maximum 4 marks Q6 Becky puts one tea bag in a beaker and adds 50 cm3 of warm water. She stirs the liquid slowly. Every 15 seconds she takes out 2 cm3 of the liquid and measures how dark it is. Page 7

8 (a) Which graph, A, B or C, shows how the colour of the liquid changes?... (b) (i) Becky takes out 2 cm3 samples of the liquid each time. Why must she always put the sample back after she has tested it? What piece of apparatus can she use to measure the volume of the 2 cm3 samples of liquid? (iii) Suggest two ways Becky could make the tea dissolve more quickly marks Maximum 5 marks Page 8

9 Q7. Some crushed ice at 20 C was placed in a beaker. A thermometer was put into the ice, and the beaker was heated gently for 15 minutes. The graph shows how the reading on the thermometer changed over the 15 minutes. (a) By how much did the temperature in the beaker change during the 15 minutes?... C (b) Which letter on the graph shows: (i) when the ice is melting?... when the water is boiling?... Page 9

10 (c) During the experiment, the beaker and its contents were quickly removed from the heat and weighed on a balance at the following times. at 0 minutes at 5 minutes at 10 minutes at 15 minutes (i) At which two times would you expect the readings on the balance to be the same?... minutes and... minutes Between which two of these times was the mass of the contents of the beaker changing most rapidly?... minutes and... minutes Maximum 5 marks Q8. Russell put ground-up coffee beans in a coffee maker and added hot water. He pushed the plunger down. This separated the coffee drink from the ground-up coffee beans. (a) How could Russell see that some coffee had dissolved in the water?... Page 10

11 (b) The end of the plunger is a circle of wire mesh. (i) Which mesh would be best to separate the coffee drink from all the ground-up coffee beans? Write the letter.... This method of making coffee uses a type of filter. The apparatus used for filtration in a school laboratory is drawn below. Which part of the apparatus above works in the same way as the wire mesh? Write the letter.... Page 11

12 (c) Russell wanted to separate the water from the coffee drink. He set up the apparatus shown below. (i) Why did Russell put ice cubes around the glass tube? Choose words from the box below to fill the gaps in the following sentences. an acid a gas a liquid a solid condensation crystallisation evaporation filtration Russell heats the water. Water in the drink changes from... into.... This change of state is called.... Water vapour changes into liquid. This change of state is called marks maximum 8 marks Page 12

13 Q9. (a) Ruth added some blue copper sulphate crystals to a beaker of water. (i) How could Ruth see that some of the copper sulphate crystals had dissolved in the water? How could Ruth make the copper sulphate crystals dissolve more quickly? (b) Ruth poured some of the copper sulphate solution into a dish. She left it in a warm room for five days. All the water evaporated from the solution in the dish. What was left in the dish?... Page 13

14 (c) Ruth did an experiment to see how much of three solids, P, Q and R, will dissolve in water at different temperatures. She plotted her results on graph paper as shown below. Use the graph above to answer the questions below. (i) At 30 C how many grams of solid R dissolved in the water?... g At 60 C which solid dissolved the most in water? Give the letter.... (iii) Which two solids were equally soluble at 25 C? Give the letters.... and... maximum 6 marks Page 14

15 Q10. The diagram below shows six cells. (a) (i) Give the letters of the two plant cells in the diagrams.... and... Which one of these plant cells contains chloroplasts? Give the letter.... (iii) Give the function of chloroplasts. (b) (i) Give the letter of the ciliated cell.... Page 15

16 In which part of the body are ciliated cells found? (iii) What is the function of ciliated cells in this part of the body? (c) Give the letter of the cell which transfers genetic information from father to offspring.... Q11. (a) The diagrams below show an animal cell and a plant cell. maximum 7 marks (i) The lines from the boxes show the positions of two of the parts that are present in both cells. In the boxes, write the names of these two parts. 2 marks Give the names of two parts which are present in plant cells but not in animal cells marks Page 16

17 (b) Organs can carry out their functions because of the special cells they have. Draw a straight line from the name of each type of cell to the function of the cell and then to the process it carries out. One has been done for you. 3 marks Q12. (a) Diagram 1 is a simplified drawing of bones and muscles in a left leg viewed from the outer side. (i) Muscle A contracts. What effect does this have on the leg? Muscles are found in antagonistic pairs. Write the letters of the pair of muscles which control the bending and straightening of the leg at the knee. Page 17

18 (iii) When one muscle of an antagonistic pair contracts the other muscle does not relax completely, but maintains some tension. What is the advantage of maintaining tension in both muscles. (b) Diagram 2 shows the elbow joint. Tissue X covers the ends of the bones at the joint. (i) Give the name of tissue X.. Osteoarthritis is a very painful condition. In the joints of people with osteoarthritis small pieces of tissue X break off. Suggest two effects this could have on the joint. 2 marks (c) Tendons are shown in diagram 1 and ligaments are shown in diagram 2. Ligaments can stretch much more than tendons. (i) Explain why ligaments at the elbow need to stretch. Explain why it is necessary that tendons hardly stretch at all when a muscle contracts. Maximum 8 marks Page 18

19 Mark Scheme 1. (a) correct bulb symbol accept other symbols for a bulb e.g. correct switch symbol do not accept a closed switch components connected in series accept circuits with the components in a different order accept incorrect but recognisable symbols or drawings for the third marking point only do not accept responses where the number of components is incorrect (b) cell(s) accept battery 1 (L3) (c) the bulb would be dimmer accept it decreases accept it would become dimmer the current is less is insufficient there is less power is insufficient a comparative answer is required for the mark it would be dim is insufficient as it does not describe the change do not accept it goes out (d) (i) increase accept brighter or becomes bright accept stronger there is more power is insufficient a comparative answer is required for the mark it is bright is insufficient as it does not describe the change bulbs would go out accept no brightness or no light Page 19

20 M2. accept it decreases accept weaker not bright is insufficient none or nothing are insufficient there is no power is insufficient darker is insufficient [7] if more than one box is ticked in any row award no mark for that row [5] M3. marks may be awarded for part (a) if the magnets are correctly labelled in part (b) and no answer is given in part (a) (a) Magnet A both poles are required for the mark Magnet C both poles are required for the mark (b) repel attract answers must be in the correct order both answers are required for the mark (c) Page 20

21 both arrows are required for the mark (d) it is attracted accept it gets faster nothing M4. (a) gravity accept weight accept it is not attracted or repelled accept it is not attracted accept it is not repelled they stick together is insufficient do not accept it repels magnetic force or magnetism accept repulsion or upthrust answers may be in either order do not accept air resistance 1 (L5) 1 (L5) [6] (b) (i) 12 1 (L5) any one from the paper cup stopped moving accept it hit the bottom the paper cup reached the bottom magnet accept the paper cup could not go any further 1 (L6) (c) any one from iron is magnetic accept aluminium is not magnetic iron nails are attracted to a magnet accept the rivets are not attracted to a magnet there is a magnetic force on the iron do not accept aluminium or rivets are less magnetic do not accept iron or nails are more magnetic than aluminium or rivets Page 21

22 M5. (a) 20 1 (L3) (b) sensor Q: any one from it goes down it goes to 17 C accept it levels out at 17 C do not accept it levels out sensor R: any one from it goes down and comes up (c) it goes to 12 C and back up to 20 C accept it comes back up it had evaporated accept it had gone into the air it had dried up is insufficient M6. (a) C (b) (i) any one from to keep the volume of liquid the same for a fair test so the amount of water or tea stays the same [4] any one from pipette syringe (iii) measuring cylinder accept measuring spoon do not accept teaspoon stir it faster answers may be in either order accept squeeze the tea bag use hotter or warmer water or use boiling water accept hot water or higher temperature do not accept use more water Page 22

23 M7. (a) 121 do not accept (L5) (b) (i) Q 1 (L5) S 1 (L5) (c) (i) 0 and 5 both stages are required for the mark 10 and 15 both stages are required for the mark M8. (a) any one from the colour had changed the water was brown or darker or grey accept the colour do not accept the coffee disappeared 1 (L5) 1 (L5) 1 (L3) [5] (b) (i) D 1 (L3) P accept the filter paper the filter is insufficient accept the paper 1 (L3) (c) (i) any one from to cool the water vapour accept to cool the steam or gas to condense the water vapour accept to condense the steam or gas change gas or vapour back to water accept to cool it or the glass tube do not accept references to liquid coffee condensing 1 (L3) from a liquid into a gas Page 23 2 (L4)

24 evaporation condensation award one mark for each correct word in the correct place M9. (a) (i) the water or it went blue accept it got darker ; it changed colour ; there were fewer crystals ; some of the crystals or copper sulphate disappeared 1 (L3) [8] any one from stir it heat it use hotter water accept use warm water grind up or crush the crystals 1 (L3) (b) any one from crystals copper sulphate accept solid (c) (i) 10 (iii) Q P and Q answers may be in either order both answers are required for the mark M10. (a) (i) C and E answers may be in any order both answers are required for the mark 1 (L6) (iii) C any one from to trap or absorb light photosynthesis accept to make glucose or sugar or starch or carbohydrate or food Page 24 1 (L6) 1 (L6)

25 (b) (i) A 1 (L6) any one from windpipe trachea airways bronchus bronchiole (iii) oviduct or fallopian tube accept lungs to remove mucus accept to remove bacteria accept to move mucus along accept to move or remove bacteria or dust particles it is a self cleaning mechanism is insufficient do not accept they clean dust or bacteria out of the lungs accept to move an ovum or egg along if the oviduct or fallopian tube is given as the answer to part ii 1 (L6) 1 (L6) (c) B M11. (a) (i) cell membrane accept membrane cytoplasm answers must be in the correct order 1 (L6) 1 (L6) 1 (L6) [7] any two from cell wall chloroplast accept chlorophyll large vacuole accept vacuole 2 (L6) Page 25

26 (b) if more than one line is drawn from any cell or function, award no mark for those linkages M12. (a) (i) it pulls the leg or the femur outwards or to the side accept it lifts the leg outwards or to the side or the leg swings to the side or outwards do not accept it lifts the leg or it pulls the leg upwards 3 (L6) 1 [7] (iii) C and F letters may be in either order both letters are required for the mark any one from it allows controlled or slow movements accept so that movements are not jerky or the relaxed muscle provides resistance to movement it allows small movements accept the partially relaxed muscle holds the limb in position accept if they relaxed completely the person would fall over or it allows more rapid responses 1 1 (b) (i) cartilage 1 any two from Page 26

27 ends of bones will rub against each other or become worn accept there will be friction at the joint do not accept the bones will hit each other less smooth movement in the joint or stiffness in the joint accept harder to move inflammation or swelling do not accept pain 2 (c) (i) to allow the arm to bend or move at the joint accept to allow the arm to move accept so they do not snap when the arm bends or they need to be different lengths when the joint moves do not accept to allow bones to bend 1 if they stretched they would not pull as much on the bones accept they would have less effect on bones or controlled movement would not be possible or they would not pull as much do not accept they would not pull on the bone or they would not hold bones 1 [8] Page 27