23/04/2020 British Lower Secondary/Junior Checkpoint Mock Exams(Science) 0Comments by Gate Academy Welcome to your British Lower Secondary/Junior Checkpoint Mock Exams(Science) NAME EMAIL PHONE NUMBER 1. This is a question about forces.Look at the diagrams below.Which diagrams show a turning force?D and EB and DE and AB and CA and C2. Poor diets can cause health problems.Choose phrases from the listHeart disease Tooth decay High blood pressure Little energy Poor growthToo little protein causes which health problem?poor growthlittle energyHigh blood pressureheart disease3. Poor diets can cause health problems.Iman and Mike look at information about the amount of fat and fibre in different fruits. Name the two fruits with the highest amount of fibre.pineapple and bananastrawberry and pineapplebanana and orangepineapple and kiwi fruit4. Plants and green algae need mineral salts to grow.One mineral salt is magnesium sulfate. Taraoluwa and Kafeel investigate the growth of algae.They put different concentrations of magnesium sulfate solution into five flasks, A, B, C, D and E.They then add the algae. Why did they leave the flasks for 5 days?to have a fair testso the algae could growto see if the algae will dieto control a variable5. In italic is a part of a plant Choose from the list the correct function of the Flowerabsorption of waterphotosynthesistransport of water and mineralsreproduction6. Here are some statements about the solar system.A. The Earth orbits the Sun.B. The Earth spins on its axis.C. The Moon orbits the Earth.D. The stars orbit the Sun.E. The Sun orbits the Earth.What letter of the statement answers this question.Why does the Sun appear to move across the sky each day?EABCD7. Tireni whistles three notes into a microphone connected to an oscilloscope.An oscilloscope shows the shape and size of a sound wave.The diagram below shows the waves for whistle 1 and whistle 2. Use words from the list below to complete this sentence.less than the same as greater than The amplitude of whistle 1 is .................................. the amplitude ofwhistle 2.less thanthe same asgreater thannot enough information8. Safia investigates the reaction between magnesium ribbon and dilute sulfuric acid.In each experiment Safia uses 25 cm³ of sulfuric acid.She records the temperature of the acid and then adds some magnesium ribbon.When the magnesium has finished reacting she records the temperature of the acid again.Safia does this experiment six times as shown below.Each time she uses a different length of magnesium ribbon. The reaction between magnesium and sulfuric acid releases energy.What is the name given to a reaction that releases energy?heatintrinsicexothermicendothermic9. The giant panda lives in China.The diagram shows a simple food web involving the panda. Name one primary consumer in the food web.bamboo plantwater plantsfishsnails10. Tireni whistles three notes into a microphone connected to an oscilloscope.An oscilloscope shows the shape and size of a sound wave.The diagram shows the waves for whistle 2 and whistle 3.Compare the pitch of whistle 2 and whistle 3.not enough informationwhistle 3 is lower than whistle 2whistle 2 is lower than whistle 3whistle 2 is the same as whistle 311. Rocks in the Earth’s crust are classified by the way that they are formed.Complete the sentences about rock formation.Choose words from the list. igneous metamorphic sedimentary...........................rocks are formed when molten lava from a volcano cools down.metamorphicsedimentaryigneousnone of the above12. Zainab has five chickens.Here is some information about her chickens. Zainab chooses chickens to breed from the offspring.Which ones should she choose?the ones that produce the most eggsnot enough informationany one female with the malethe ones that produce the less eggs13. The Earth is made up of three layers including the core and the crust. The core is made up of mainly two metals.One of these metals is nickel.What is the name of the other metal?goldironcopperaluminium14. Some metal railings have started to rust. Which two substances must be present for the railings to rust?carbon dioxide, hydrogenoxygen, waterhydrogen, nitrogencarbon dioxide, oxygennitrogen, water15. This list shows properties that different materials can have. A. magnetic E. good conductor of heat B. can be compressed F. poor conductor of heatC. very high melting point G. good conductor of electricityD. very low melting point H. non conductor of electricity Write down the letter of the property that answers this question.Which property from the list explains why plastic makes a good material for the handle of a kettle?DBFH16. The diagram shows a palisade cell.Which one structure, labelled in the diagram, is not found in animal cells?cytoplasmcell membranecell wallnucleus17. The diagram shows a palisade cell.Which three structures, labelled in the diagram, are not found in animal cells?cytoplasm, cell membrane, nucleuscell membrane, vacuole, chloroplastchloroplast, vacuole, cell wallnucleus, cytoplasm, cell wall18. Look at the table.It shows the melting points and boiling points of some elements. Use the table to answer the question below.Which element is a liquid at room temperature (20°C)?sodiumoxygenirongoldmercury19. Here are some statements about the solar system.A. The Earth orbits the Sun.B. The Earth spins on its axis.C. The Moon orbits the Earth.D. The stars orbit the Sun.E. The Sun orbits the Earth.What letter of the statement answers this question.Why do some stars appear in the summer night sky but not in the winter night sky?DAECB20. Plants and green algae need mineral salts to grow.One mineral salt is magnesium sulfate. Taraoluwa and Kafeel investigate the growth of algae.They put different concentrations of magnesium sulfate solution into five flasks, A, B, C, D and E.They then add the algae. Why did they leave the flasks for 5 days?to control a variableto see if the algae will dieto have a fair testso the algae could grow21. Manjit puts a metal saucepan of milk on a cooker as shown.Thermal (heat) energy can be transferred by conduction, convection and radiation. Which is the main process that transfers thermal energy through the milk?conductionheatradiationconvection22. Poor diets can cause health problems.Iman and Mike look at information about the amount of fat and fibre in different fruits. Mike thinks the information in the table is not a fair comparison because thefruits are different shapes.Lee thinks it is not a fair comparison but he knows that the shape of the fruit isnot important.What measurement can't they use to make it a fair comparison?sizetemperaturemassvolume23. Zainab has five chickens.Here is some information about her chickens. Other qualities can be used when selectively breeding chickens.Pick the most usefulsize of eggsnumber of featherslow life expectancyamount of milk produced24. The diagram shows a palisade cell.Which one structure, labelled in the diagram, is not found in animal cells?nucleuscell membranecytoplasmvacuole25. Hakeem does an experiment on sound.Hakeem connects a microphone to an oscilloscope.He places the microphone at different distances from the loudspeaker.He records the amplitude of the wave on the oscilloscope.Here are some of the results on the oscilloscope. Use the pictures to suggest which pattern best describes the results? the amplitude increases with distancethe amplitude decreases with distancethe amplitude does not change with distancethere is no pattern in the results26. Hydrogen peroxide is used to make oxygen in the laboratory.Hydrogen peroxide breaks down to form water and oxygen. This reaction is much faster when a chemical called manganese(IV) oxide is added to the hydrogen peroxide.The manganese(IV) oxide is unchanged at the end of the reaction.Chioma investigates the effect of temperature on the breakdown of hydrogen peroxide.She should control (keep the same) all BUT ONE variable.same apparatusparticle size of the manganese (IV) oxideamount of catalystconcentration of hydrogen peroxidevolume of hydrogen peroxide27. Chidi makes a prediction about the planets in the Solar system.To find evidence to support his prediction he uses the internet.The table shows the information he findsHow does the information in the table support Prediction 1?not enough informationlongest time for orbitmercury is closest to sunmercury is farther to sun28. In italic is a part of a plant Choose from the list the correct function of the Stemreproductiontransport of water and mineralsabsorption of waterphotosynthesis29. Hydrogen peroxide is used to make oxygen in the laboratory.Hydrogen peroxide breaks down to form water and oxygen. This reaction is much faster when a chemical called manganese(IV) oxide is added to the hydrogen peroxide.The manganese(IV) oxide is unchanged at the end of the reaction.What type of chemical is manganese(IV) oxide?acidcatalystalkalimetal30. The Earth is made up of three layers including the core and the crust. What is the approximate age of the Earth?1.1 million years old3200 million years old4600 million years old2100 million years old1200 million years old31. Chidi makes a prediction.Does the information in the table support Prediction 2?not enough informationNomaybeYes32. Hassan does an experiment to find the maximum friction force between a wooden block and different surfaces.Here are his results.Name the apparatus Hassan uses to measure the friction force.spring balanceall of the abovenewtonmeterchemical balance33. The diagram shows the particle arrangement in a liquid. suggest the particle arrangement in a solid.loosely heldthe same as that of liquidmore spaced out as that of gastightly packed34. Poor diets can cause health problems.Iman and Mike look at information about the amount of fat and fibre in different fruits. All BUT ONE is the reason fibre is important in the dietspeeds up the movement of waste out of the bodyprevents constipationkeeps the digestive system healthygood source of diethelps prevent bowel cancer35. Complete the word equation for photosynthesis.carbon dioxide + ........................ → glucose + .........................water as reactant and oxygen as productwater as reactant and hydrogen as productoxygen as reactant and water as producthydrogen as reactant and oxygen as product36. This list shows properties that different materials can have. A. magnetic E. good conductor of heat B. can be compressed F. poor conductor of heatC. very high melting point G. good conductor of electricityD. very low melting point H. non conductor of electricity Write down the letter of the property that answers this question.Which property from the list explains why a lot of oxygen gas can be pumped into a very small container?BGAE37. Zainab has five chickens.Here is some information about her chickens. Zainab chooses chickens to breed from the offspring.Which ones should she choose?the ones that produce the most eggsthe ones that produce the less eggsnot enough informationany one female with the male38. Tireni whistles three notes into a microphone connected to an oscilloscope.An oscilloscope shows the shape and size of a sound wave.The diagram shows the waves for whistle 2 and whistle 3.Compare the loudness of whistle 2 and whistle 3.whistle 2 is the same as whistle 3whistle 3 is louder than whistle 2whistle 2 is louder than whistle 3not enough information39. Chidi makes a prediction about the planets in the Solar system.To find evidence to support his prediction he uses the internet.The table shows the information he findsHow does the information in the table support Prediction 1?shortest time for orbitmercury is farther to sunnot enough informationlongest time for orbit40. Complete the explanation using these words belowarea force pressurePeople who walk across snow may wear snowshoes.The person does not sink into the snow because the ................................ acts ona larger .......................................... so that the ....................................... is less.force, pressure, areaarea, force, pressureforce, area, pressurepressure, area, force41. The diagram shows a palisade cell.Which one structure, labelled in the diagram, is not found in animal cells?cytoplasmnucleuschloroplastcell membrane42. Plants and green algae need mineral salts to grow.One mineral salt is magnesium sulfate. Taraoluwa and Kafeel investigate the growth of algae.They put different concentrations of magnesium sulfate solution into five flasks, A, B, C, D and E.They then add the algae. All BUT ONE are reasons Taraoluwa and Kafeel put 10 cm³ of algae into each flask?so they start with same amountsto allow comparisons to be madeto see if the algae will dieto control a variable43. Look at the table.It shows the melting points and boiling points of some elements. Use the table to answer the question below.Which element is a non-metal?oxygenironmercurysodiumgold44. The giant panda lives in China.The diagram shows a simple food web involving the panda. One of these is a producersnailsfishgiant pandabamboo plant45. Hassan does an experiment to find the maximum friction force between a wooden block and different surfaces.Here are his results.Hassan repeated the measurements for each surface three times. All of these are reasons he did EXCEPTidentify anomalouschecking reliabilityget the largest valueunusual results46 out of 45Time is Up!
