Welcome to your British Lower Secondary/Junior Checkpoint Mock Exams(Science) NAME EMAIL PHONE NUMBER 1. The diagram shows part of an electromagnet. What is the name of part B on the diagram. copper core coil iron2. 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? temperature size volume mass3. 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)? iron oxygen sodium gold mercury4. The alimentary canal consists of many different organs.Below is an image of the alimentary canal. What is the function of the stomach? it is where food is chewed into smaller pieces it absorbs water it is where food is mixed up into a creamy liquid it digests proteins, carbohydrates and fats and absorbs water, amino acids, sugars and fatty acids5. Some metal railings have started to rust. Which metal were the railings made of? lead copper iron aluminium6. Chidi makes a prediction.Chidi thinks he needs more evidence related to Prediction 2.Suggest one extra piece of evidence he could use. Mercury is cooler than Venus but farther to the Sun find another source to check the evidence obtained information about less planets get to find more information about mercury7. 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 wavelength of whistle 1 is ............................... the wavelength of whistle 2. less than not enough information the same as greater than8. 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. Here are their results.When the colour of the algae is dark green it has grown the most.Complete the sentence.Choose a word from the list. carbon dioxide fastest the same slowest sugar waterWhen the concentration of magnesium sulfate is 4 the algae grow ......................... carbon dioxide slowest the same sugar fastest9. Chidi makes a prediction.Does the information in the table support Prediction 2? No not enough information maybe Yes10. Some metal railings have started to rust. Which two substances must be present for the railings to rust? oxygen, water hydrogen, nitrogen nitrogen, water carbon dioxide, oxygen carbon dioxide, hydrogen11. Poor diets can cause health problems.Choose phrases from the listHeart disease Tooth decay High blood pressure Little energy Poor growthToo much salt causes which health problem? High blood pressure poor growth little energy heart disease12. Given the table below. Decide if the information indicates that the element is a metal or a non-metal. A and C in order non-metal, non-metal non-metal, metal metal, metal metal, non-metal13. 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? conduction radiation convection heat14. The Earth is made up of three layers including the core and the crust. What is the approximate age of the Earth? 2100 million years old 4600 million years old 1200 million years old 1.1 million years old 3200 million years old15. 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. newtonmeter chemical balance spring balance all of the above16. The diagram shows the particle arrangement in a liquid. Sade puts five drops of a liquid perfume on the back of her hand. A few seconds later Sade can smell the perfume.This is because the perfume diffuses into her nose. Explain, using the particle theory of matter, how diffusion takes place.particles remain fixedparticles remain unchangedparticles spread outparticles spread from lower regions to higher regions17. 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 die to control a variable to have a fair test so the algae could grow18. Zainab has five chickens.Here is some information about her chickens. Zainab chooses chickens to breed from the offspring.Which ones should she choose? not enough information the ones that produce the most eggs any one female with the male the ones that produce the less eggs19. 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? heat intrinsic endothermic exothermic20. Poor diets can cause health problems.Choose phrases from the listHeart disease Tooth decay High blood pressure Little energy Poor growthToo much sugar causes which health problem? heart disease tooth decay poor growth High blood pressure21. The alimentary canal consists of many different organs.Below is an image of the alimentary canal. What is the function of the small intestine? it absorbs water it digests proteins, carbohydrates and fats and absorbs water, amino acids, sugars and fatty acids it is where food is chewed into smaller pieces it is where food is mixed up into a creamy liquid22. The diagram shows the particle arrangement in a liquid. suggest the particle arrangement in a solid. the same as that of liquid tightly packed more spaced out as that of gas loosely held23. In italic is a part of a plant Choose from the list the correct function of the Flower photosynthesis transport of water and minerals reproduction absorption of water24. In italic is a part of a plant Choose from the list the correct function of the Leaf absorption of water transport of water and minerals photosynthesis reproduction25. The diagram shows a palisade cell.Which three structures, labelled in the diagram, are not found in animal cells? cytoplasm, cell membrane, nucleus nucleus, cytoplasm, cell wall cell membrane, vacuole, chloroplast chloroplast, vacuole, cell wall26. 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? A D C E B27. 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. all of the above newtonmeter chemical balance spring balance28. 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 useful resistance to disease, number of feathers low life expectancy, amount of milk produced size of eggs, amount of milk produced size of eggs, resistance to disease29. The diagram shows a palisade cell.Name the part of the cell in which photosynthesis takes place. chloroplast cell membrane chlorophyll nucleus cytoplasm30. 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? alkali acid catalyst metal31. The alimentary canal consists of many different organs.Below is an image of the alimentary canal. What is the name of part A? tongue alimentary canal trachea oesophagus32. Zainab has five chickens.Here is some information about her chickens. Zainab chooses chickens to breed from the offspring.Which ones should she choose? any one female with the male not enough information the ones that produce the most eggs the ones that produce the less eggs33. Complete the explanation using these words belowarea force pressure A sharp knife cuts through bread more easily than a blunt knife.The edge of the sharp knife has a smaller ..................................... so the................................ acting on the knife produces a larger .................................. .34. 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 distance the amplitude decreases with distance there is no pattern in the results the amplitude does not change with distance35. Zainab has five chickens.Here is some information about her chickens. Other qualities can be used when selectively breeding chickens.Pick the most useful low life expectancy size of eggs amount of milk produced number of feathers36. A car is driving along a road. What type of motion is exhibited by the wheels of the car? oscillatory vibrational translational rotational random37. A car is driving along a road. Complete the sentences about the carThe car is slowing down. The forces that slow the car down are ............................and .................................... gravity and friction chemical and kinetic air resistance and elastic gravity and kinetic air resistance and friction38. 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. Here are their results.All BUT ONE could complete the sentence below.As the concentration of magnesium sulfate increases from 1 to 5, the colour of the algae ........................................................................................................ colour of algae gets darker gets lighter / decreases after concentration of 4 gets lighter / decreases colour of algae increases colour of algae gets greener39. In italic is a part of a plant Choose from the list the correct function of the Stem photosynthesis reproduction transport of water and minerals absorption of water40. 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. 13.0 10.5 9.7 18.341. 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 eggs the ones that produce the less eggs any one female with the male not enough information42. 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.Which variable do you think she should change? temperature catalyst alkali acid43. The giant panda lives in China.The diagram shows a simple food web involving the panda. One of these is a producer bamboo plant fish giant panda snails44. Given the table below. Decide if the information indicates that the element is a metal or a non-metal. B and D in order metal, metal non-metal, metal metal, non-metal non-metal, non-metal45. Chidi makes a prediction.How does the information in the table support Prediction 2? Earth is hotter than Mars but closer to the Sun Earth is cooler than Mars but closer to the Sun Earth is cooler than Mars but farther to the Sun Earth is hotter than Mars but farther to the Sun46 out of 45Time is Up!
