[PDF] 2008 Key Stage 2 Year 6 - Science Test A Levels 3-5.pdf | Plain Text

Science testLEVELS3–5 ScKEY STAGE2 2008Test AFirst name ________________________________________________ Last name ________________________________________________ School________________________________________________PageMarks579111315171921TOTALFor marker’s use only1 0 3 25 46Me asure t he time it takes to ...50 100 150Booklet A 14/11/07 14:15 Page 1

3INSTRUCTIONSRead this carefully.Answers This pencil shows where you will need to put your answer. For some questions you may need to draw an answer instead of writing one.You have 45 minutesfor this test.Some questions may have a box like this for you to write down your thoughts and ideas.Booklet A 14/11/07 14:15 Page 3

5Total out of 2 Solids, liquids and gases(a) Megan has three cups. There is a solid in one cup, liquid in another, and gas in another. Megan writes a description of what is in each cup. Draw THREElines to match solid, liquid and gas to the best description of what is in each cup. (b) Megan’s teacher says gases spread out to completely fill up any container. Write yesor noin each row to complete the table.solidI cannot see anything inside the cup.I cannot pour the material out of the cup.When I move the cup, the material changes shape.gasliquidDescription A small container of gas.All of the gas from the small container can fill up a big container.1Gases Liquids SolidsDo they spread out to completely fill upany container? yes1a 1 mark1b 1 markBooklet A 14/11/07 14:15 Page 5

6Teeth(a) Sue wants to find out how four differentdrinks affect teeth. Egg shell and teeth are made of the same type of material. Sue puts the same amount of egg shell in four beakers. She puts a differentdrink into each beaker. Show how much drink Sue must put in each beaker for her test to be fair. Draw a line on beakers B, C and D. Beaker A has been done for you. (b) After six days, Sue looks in the beakers. Beaker C has the leastamount of egg shell left in it. Tick ONEbox to show which drink is most likely to be in beaker C. lemonade milk tea water2Beaker A Beaker B Beaker C Beaker Degg shell2a 1 mark2b 1 markBooklet A 14/11/07 14:15 Page 6

7Total out of 6 (c) Sue decides to drink less of the drink in beaker C to help stop tooth decay. Give TWO otherways Sue can help stop tooth decay. (i) ............................................................................................................ (ii) ........................................................................................................... (d) The shape of animals’ teeth can be different because they eat different things. A lion has long, sharp canine teeth for eating meat. (i) How do canine teeth help the lion to eat meat? ...................................................................................................... A cow has large, flat molar teeth for eating grass. (ii) How do molar teeth help the cow to eat grass? ......................................................................................................Lion skull – reproduced by kind permission of Ipswich Borough Council Museums and Galleries. Cow skull – reproduced by kind permission of D. Roberts.Cow Lionmolarcanine2cii 1 mark2di 1 mark2dii 1 mark2ci 1 markBooklet A 14/11/07 14:16 Page 7

8String instruments(a) Sam makes a string instrument. He ties the string tightly. He plucks the string. The instrument makes a sound. Clare hears the sound. What does the sound travel through to reach Clare’s ear? ................................................................................................................. (b) Sam plucks the string again. It sounds louder. How did Sam pluck the string with his finger to make it sound louder? .................................................................................................................3Clare Samstringstick tub3a 1 mark3b 1 markBooklet A 14/11/07 14:16 Page 8

9Total out of 4 (c) Clare looks carefully at the string as Sam plucks it. When Clare looks carefully at the string, what can she see that tells her the string is making the sound? ................................................................................................................. (d) Sam makes the string shorter by tying it further down the stick. He ties it tightly. He plucks the string. How is the sound of the shorterstring differentfrom the sound of the longer string? TickONEbox. With the shorter string... the note is lower. the note is higher. the sound lasts longer. the sound travels further.3d 1 mark3c 1 markBooklet A 14/11/07 14:16 Page 9

10Fish tank(a) Neil has a tropical fish tank. He has Clown Loach fish in his tank. Algae also grow in his tank. Algae are small green plants. Neil moves his fish tank from a dark corner into the sunlight. Tick ONEbox to show what will happen to the algae in Neil’s tank when he puts it into sunlight. More sunlight will make the algae (green plants)... stop growing. die. grow more quickly. turn yellow. (b) Neil wants to keep his fish tank clean of algae. He knows water snailseat algae. Neil decides to buy water snails. He then reads that Clown Loach fisheat water snails. Write the food chain for the Clown Loach fish.4Clown Loach fish........................... ........................... ...........................4a 1 mark4b 1 markBooklet A 14/11/07 14:16 Page 10

11Total out of 4 (c) Instead, Neil uses two magnets to clean algae off the sides of the tank. He puts magnet B on the outside and magnet A on the inside. Neil moves magnet B on the outside of the tank. As he moves magnet B, magnet A moves with it. Magnet A scrapes away the algae inside the tank. Explain why magnet A moves with magnet B. ................................................................................................................. (d) Neil must keep the temperature of the water at 25°C to keep his fish healthy. This thermometer shows the temperature of the water in Neil’s tank. (i) Tick ONEbox to show if the temperature of the water will keep the fish healthy. yes no (ii) Explain your answer. ...................................................................................................... ......................................................................................................4d 1 mark4c 1 markBooklet A 14/11/07 14:16 Page 11

12Sieves(a) Ahmed uses different sieves to separate different mixtures. His mixtures are made of salt, sugar, rice, dried peas and pasta. Ahmed has three sieves. DrawTHREElines to match each mixture to the sieve that separates the mixture.5SaltRiceDried peasDried pastaSugar Mixture SieveSalt and rice Rice and peas Peas and pasta5a 1 markBooklet A 14/11/07 14:16 Page 12

13Total out of 5 (b) Ahmed cannotseparate a sugar and salt mixture with any of his sieves. Explain why both the sugar and salt go through all Ahmed’s sieves. ................................................................................................................. (c) Ahmed mixes salt and water. Salt and water cannot be separated with any sieve. (i) Explain what happens to the salt when he mixes it with water. ...................................................................................................... (ii)Describe how Ahmed could separate a mixture of salt and water. ...................................................................................................... ...................................................................................................... (d) Ahmed makes a new mixture of soil and water. He sieves the mixture. Some of the soil stays in the sieve but some soil goes through the sieve with the water. What is a better way for Ahmed to separate more of the soil from the water quickly? .................................................................................................................5b 1 mark5ci 1 mark5cii 1 mark5d 1 markBooklet A 14/11/07 14:16 Page 13

14Bananas(a) Alan hears that bananas ripen and turn yellow more quickly if they are kept with a ripe apple. He takes two bags and puts an unripe, green banana in each. Then he puts a ripe apple in one of the bags. Write trueor falsenext to each statement below to show how Alan should make the test fair. To make the test fair... both bananas must be unripe. ....................... an apple must be put in both bags. ....................... the bags must be left in the same place. ....................... (b) Alan leaves the bags for 7 days. His results are shown below. TickONEbox to show what Alan has recorded. measurements predictions observations conclusions6Tr u eor false?Results after 7 daysThe banana in bag A is green. The banana in bag B is yellow. The apple in bag B has not changed.Bag A Bag B TEST 1:6b 1 mark6aii 1 mark 1 mark6aiBooklet A 14/11/07 14:16 Page 14

15Total out of 6 (c) (i) Tick ONEbox to show if the results from Test 1 support the statement that apples make bananas ripen more quickly. yes no (ii) Give examples from Alan’s results to explain your answer. ...................................................................................................... (d) Alan does a second test. He puts different types of ripe fruit in bags with a green banana. He leaves the bags for 7 days. His results are shown below. What question was Alan investigating? ................................................................................................................. (e) Alan says ‘My results are notwhat I expected. I must do Test 2 again to check my results.’ Look at the results for bothof Alan’s tests. What evidence from Test 1shows that the results from Test 2 need to be checked? In Test 1 ................................................................................................... .................................................................................................................What fruit is in the bag with the banana?BagC D E Fnothing lemon orange grapesAfter 7 days, the banana is... yellow yellow yellow yellow TEST 2:6c 1 mark6d 1 mark6e 1 markBooklet A 14/11/07 14:16 Page 15

16Floating on salty water(a) Dominic wants to find out if the saltiness of water affects how well things float. Dominic pushes a straw into a clay ball. He puts them in a measuring cylinder filled with water. Dominic notices the bottom of the clay ball floats level with 32 cm3on the measuring cylinder. (i) What force is pulling down on the straw and clay ball? .................................................. (ii) What force makes the straw and clay ball float even though there is a force pulling them down? ......................................................................................................7100 10 20 30 40 50 60 70 80 90measuring cylinder straw clay ball water7ai 1 mark7aii 1 markcm3Booklet A 14/11/07 14:16 Page 16

17Total out of 5(b) Dominic records the height of the clay ball in the measuring cylinder. Then he repeats his test. Each time he adds another teaspoon of salt to the water. The table below shows his results. Estimate the height of the clay ball in the measuring cylinder when two teaspoons of salt are added. (c) Tick ONEbox to show which material caused the forces acting on the straw and clay ball to change. (d) Circle the correct word from each box to complete the sentence about the force on the clay ball. The greater the force on the clay ball, the it floats.Amount of salt in water (teaspoons)0 321 342 ..................Level at which clay ball floats (cm3)3 39upwards downwardshigher lower water airsand salt7d 1 mark7b 1 mark7c 1 markBooklet A 14/11/07 14:16 Page 17

18Sleeping babies(a) Scientists have found out that babies who spend more time in daylight sleep better at night. To test their idea, the scientists needed to find out how well some babies sleep at night normally. What could the scientists measure or observe to find out how well babies sleep? ................................................................................................................. .................................................................................................................88a 1 markBooklet A 14/11/07 14:16 Page 18

19Total out of 5 (b) The scientists asked the parents to increase the time their babies spend in daylight. They measured how well the babies slept again. Write yesor nonext to each statement to show how parents could increase the time their baby spends in daylight. Parents could... play with the baby more often in the garden. ....................... keep the curtains closed in the baby’s room. ....................... take the baby for a walk in the pram. ....................... (c) The parents must be careful that the sunlight does not burn the baby. Describe ONEway parents can keep babies safe in sunlight. ................................................................................................................. (d) To test their idea, the scientists needed to do the test with more than one baby. Explain why they needed to do the test with more than one baby. ................................................................................................................. .................................................................................................................Would the baby spend more time in daylight?8bi 1 mark8c 1 mark8d 1 mark8bii 1 markBooklet A 14/11/07 14:16 Page 19

20Candle(a) When a candle is lit, some changes happen. Some of the wax melts. Some of the wax burns. Are the changes in the table reversible? Write yes ornoin each row. (b) Write trueor falsenext to each statement below. The wax must be heated to melt. ...................... When a solid melts it changes into a gas. ...................... Temperature shows how hot or cold something is. ...................... (c) Draw a line on the graph to predict what will happen to the mass of a 100 g candle when it is lit.9Is the change reversible?ChangeThe wax melts. The wax burns. Tr u eor false? Mass of candle (g) Time (minutes) 100 09b 1 mark9c 1 mark9a 1 markBooklet A 14/11/07 14:16 Page 20

END OF TEST Please check your answers21Total out of 3 Booklet A 14/11/07 14:16 Page 21

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QCA/08/3310 (Pupil pack) © Qualifications and Curriculum Authority 2008QCA/08/3303 (Mark schemes pack) 282641Booklet A 14/11/07 14:16 Page 24