Welcome to your British Lower Secondary/Junior Checkpoint Mock Exams(Science) NAME EMAIL PHONE NUMBER 1. The alimentary canal consists of many different organs.Below is an image of the alimentary canal. What is the function of the stomach? it digests proteins, carbohydrates and fats and absorbs water, amino acids, sugars and fatty acids it absorbs water it is where food is chewed into smaller pieces it is where food is mixed up into a creamy liquid 2. 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 number of feathers colour of feathers resistance to disease 3. The diagram shows a palisade cell.Which one structure, labelled in the diagram, is not found in animal cells? cytoplasm nucleus cell membrane chloroplast 4. 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 greater than the same as 5. Some metal railings have started to rust. Which metal were the railings made of? iron aluminium lead copper 6. Hassan does an experiment to find the maximum friction force between a wooden block and different surfaces.Here are his results.Which is the one anomalous reading in the table. 9.3 18.1 26.4 32.6 7. 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? Fen and Lam Jeb and Lam Coo and Lam Abb and Lam 8. 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. amount of catalyst concentration of hydrogen peroxide particle size of the manganese (IV) oxide volume of hydrogen peroxide same apparatus 9. In italic is a part of a plant Choose from the list the correct function of the Leaf photosynthesis absorption of water reproduction transport of water and minerals 10. Chidi makes a prediction.How does the information in the table support Prediction 2? Mercury is cooler than Venus but closer to the Sun Mercury is hotter than Venus but closer to the Sun Mercury is cooler than Venus but farther to the Sun Mercury is hotter than Venus but farther to the Sun 11. 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.Venus is not a source of light.Why do you think it is possible to see Venus in the night sky. Venus is reflecting light from the Moon Venus orbits part of the Earth Venus is reflecting light from the Earth Venus orbits the Stars Venus is reflecting light from the Sun 12. Given the table below. Decide if the information indicates that the element is a metal or a non-metal. C and E in order metal, non-metal non-metal, non-metal metal, metal non-metal, metal 13. 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? B D H F 14. 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 than the same as not enough information greater than 15. Zainab has five chickens.Here is some information about her chickens. Other qualities can be used when selectively breeding chickens.Pick the most useful size of eggs low life expectancy amount of milk produced number of feathers 16. 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 endothermic exothermic intrinsic 17. The diagram shows a palisade cell.Name the part of the cell in which photosynthesis takes place. cell membrane chloroplast chlorophyll cytoplasm nucleus 18. 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? iron mercury sodium gold oxygen 19. 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, non-metal metal, metal 20. The alimentary canal consists of many different organs.Below is an image of the alimentary canal. What is the name of part A? trachea tongue oesophagus alimentary canal 21. 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 ......................... slowest sugar carbon dioxide fastest the same 22. 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 Mars mass of Earth is less than Mars not enough information strength of gravity is higher on Earth than Mars 23. Poor diets can cause health problems.Choose phrases from the listHeart disease Tooth decay High blood pressure Little energy Poor growthToo much fat causes which health problem? High blood pressure little energy poor growth heart disease 24. 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? so the algae could grow to see if the algae will die to have a fair test to control a variable 25. 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? Yes not enough information No Maybe 26. The diagram shows a palisade cell.Which three structures, labelled in the diagram, are not found in animal cells? nucleus, cytoplasm, cell wall chloroplast, vacuole, cell wall cytoplasm, cell membrane, nucleus cell membrane, vacuole, chloroplast 27. 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 kinetic gravity and friction air resistance and friction chemical and kinetic air resistance and elastic 28. 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 EXCEPT checking reliability unusual results identify anomalous get the largest value 29. 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. chemical balance newtonmeter spring balance all of the above 30. The giant panda lives in China.The diagram shows a simple food web involving the panda. What do the arrows in the food web show? level of hierarchy reaction between them connectors energy flow 31. 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. whistle 2 is the same as whistle 3 not enough information whistle 3 is lower than whistle 2 whistle 2 is lower than whistle 3 32. Chidi makes a prediction.Does the information in the table support Prediction 2? No Yes maybe not enough information 33. 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 spread out particles remain unchanged particles remain fixed particles spread from lower regions to higher regions 34. 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 colour of algae gets greener gets lighter / decreases after concentration of 4 colour of algae increases 35. The diagram shows a palisade cell.Which one structure, labelled in the diagram, is not found in animal cells? cell membrane cytoplasm nucleus vacuole 36. 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 above igneous metamorphic sedimentary 37. The Earth is made up of three layers including the core and the crust. What is the name of the other layer? mantle core crust magma 38. 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 plant water plants fish snails 39. 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? metal catalyst alkali acid 40. Some metal railings have started to rust. Which two substances must be present for the railings to rust? hydrogen, nitrogen oxygen, water nitrogen, water carbon dioxide, oxygen carbon dioxide, hydrogen 41. 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 sodium oxygen mercury gold 42. 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 B E C D 43. The diagram shows part of an electromagnet. What is the name of part A on the diagram. core copper iron coil 44. 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 less eggs any one female with the male the ones that produce the most eggs 45. Given the table below. Decide if the information indicates that the element is a metal or a non-metal. C and D in order metal, metal non-metal, metal metal, non-metal non-metal, non-metal 1 out of 45 Time is Up! Time's up