Welcome to your British Lower Secondary/Junior Checkpoint Mock Exams(Science) NAME EMAIL PHONE NUMBER 1. 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 variableso the algae could growto have a fair testto see if the algae will die2. 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?conductionradiationconvectionheat3. The Earth is made up of three layers including the core and the crust. What is the name of the other layer?mantlemagmacorecrust4. Hassan does an experiment to find the maximum friction force between a wooden block and different surfaces.Here are his results.Calculate the average (mean) friction force for the glass experiment.10.518.313.09.75. 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 see if the algae will dieto allow comparisons to be madeto control a variable6. 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 two properties from the list make aluminium suitable for cooking pans?C and GD and BA and EC and E7. In italic is a part of a plant Choose from the list the correct function of the Flowerreproductionphotosynthesisabsorption of watertransport of water and minerals8. In italic is a part of a plant Choose from the list the correct function of the Leaftransport of water and mineralsabsorption of waterreproductionphotosynthesis9. 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 rubber is used to cover electrical wiring?BFDH10. Zainab has five chickens.Here is some information about her chickens. Other qualities can be used when selectively breeding chickens.Pick the most usefulresistance to diseasecolour of featherslow life expectancynumber of feathers11. 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 findsChidi correctly predicts he will weigh more on Earth than on Mars.How does the information in the table supports his prediction.strength of gravity is less on Earth than Marsstrength of gravity is higher on Earth than Marsnot enough informationmass of Earth is less than Mars12. 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 dietkeeps the digestive system healthygood source of dietspeeds up the movement of waste out of the bodyhelps prevent bowel cancerprevents constipation13. This is a question about forces.Look at the diagrams below.Which diagrams show a turning force?A and CB and DE and AB and CD and E14. 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 informationthe ones that produce the less eggsany one female with the male15. 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.none of the abovemetamorphicigneoussedimentary16. The diagram shows a palisade cell.Name the part of the cell in which photosynthesis takes place.cell membranenucleuscytoplasmchlorophyllchloroplast17. 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 found in layers and often contain fossils.metamorphicigneoussedimentaryall of the above18. A car is driving along a road. What type of motion is exhibited by the car?translationalrandomoscillatoryrotationalvibrational19. 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 dietkeeps the digestive system healthyspeeds up the movement of waste out of the bodygood source of dietprevents constipationhelps prevent bowel cancer20. A car is driving along a road. What type of motion is exhibited by the wheels of the car?translationaloscillatoryvibrationalrotationalrandom21. The diagram shows the energy flow into and out of a coal-fired power station. How much useful electrical energy is provided by the power station?300 MJ1000 MJ600 MJ1400 MJ400MJ22. 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 apparatusamount of catalystconcentration of hydrogen peroxideparticle size of the manganese (IV) oxidevolume of hydrogen peroxide23. The diagram shows a palisade cell.Which three structures, labelled in the diagram, are not found in animal cells?chloroplast, vacuole, cell wallcytoplasm, cell membrane, nucleusnucleus, cytoplasm, cell wallcell membrane, vacuole, chloroplast24. The alimentary canal consists of many different organs.Below is an image of the alimentary canal. What is the name of part A?tonguetracheaalimentary canaloesophagus25. 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 fruit26. Chidi makes a prediction.How does the information in the table support Prediction 2?Earth is cooler than Mars but closer to the SunEarth is hotter than Mars but closer to the SunEarth is cooler than Mars but farther to the SunEarth is hotter than Mars but farther to the Sun27. 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 findsDoes the information in the table support Prediction 1?MaybeYesNonot enough information28. 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 abovechemical balancenewtonmeter29. The diagram shows the particle arrangement in a liquid. suggest the particle arrangement in a solid.the same as that of liquidmore spaced out as that of gasloosely heldtightly packed30. Zainab has five chickens.Here is some information about her chickens. Other qualities can be used when selectively breeding chickens.Pick the two qualities that are the most usefulresistance to disease, number of featherssize of eggs, resistance to diseaselow life expectancy, amount of milk producedsize of eggs, amount of milk produced31. Chidi makes a prediction.How does the information in the table support Prediction 2?Mercury is hotter than Venus but farther to the SunMercury is hotter than Venus but closer to the SunMercury is cooler than Venus but closer to the SunMercury is cooler than Venus but farther to the Sun32. 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. Safia then calculates the temperature change for each reaction. One set of readings is an anomalous result.Which set?result for 2 cmresult for 5 cmresult for 4 cmresult for 6 cm33. Some metal railings have started to rust. Which two substances must be present for the railings to rust?carbon dioxide, hydrogennitrogen, wateroxygen, watercarbon dioxide, oxygenhydrogen, nitrogen34. 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 made when heat and pressure change othertypes of rock.metamorphicsedimentaryigneousall of the above35. 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.What did Copernicus and Galileo think was wrong?ABECD36. Zainab has five chickens.Here is some information about her chickens. Zainab wants to increase the number of eggs per year by using selective breeding.Which two chickens should she breed together?Coo and LamAbb and LamJeb and LamFen and Lam37. The diagram shows part of an electromagnet. What is the name of part B on the diagram.ironcorecoppercoil38. Some metal railings have started to rust. All BUT ONE are ways to prevent railings from rusting?cover the railingsgalvanisecoat in oilpaint39. 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 less eggsthe ones that produce the most eggsnot enough informationany one female with the male40. Zainab has five chickens.Here is some information about her chickens. Other qualities can be used when selectively breeding chickens.Pick the most usefulnumber of feathersamount of milk producedsize of eggslow life expectancy41. 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 these pictures to complete the results table. 6cm = 2.3; 11cm = 1.56cm = 2; 11cm = 1.56cm = 2; 11cm = 1.76cm = 2.8; 11cm = 1.642. 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 see if the algae will dieto have a fair testso the algae could growto control a variable43. The diagram shows a palisade cell.Which one structure, labelled in the diagram, is not found in animal cells?cell wallcell membranecytoplasmnucleus44. Given the table below. Decide if the information indicates that the element is a metal or a non-metal. A and C in ordernon-metal, metalmetal, non-metalmetal, metalnon-metal, non-metal45. 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?BFHD46 out of 45Time is Up!
