Page 1 :
Directorate of Public Instructions, Bhopal (MP), National Achievement survey 2021, Practice paper-3, Class- 10, Subject- Science, , Instructions for student –, 1. This booklet contains 70 questions., 2. The time allotted for answering the questions is 120 minutes ., 3. Each question has four options 1,2,3 and 4 out of which only one is, the correct answer., 4. Students can do rough work in this booklet.

Page 2 :
Question no.1- Two identical papers were folded to make a model of an owl and a whale,, as shown below. Which of the following will remain the same in both the models?, , 1. weight 2. Substance 3. surface area, (Note: Ignore the stands where the models are placed. ), A: material only, B: Weight and Substances Only, C: Material and surface area only, D: All - weight, surface area and substance, , Question no.2- Ashma wants to check the statement that a spider net made of silk fibre is, more strengthened than a net made of steel. To compare the strength of the two, what, physical property of fibers does he have to keep constant?, A: diameter, , B: density, , C: weight, , D: length, , Question no.3- Which of the following has the largest size?, A: A Ribosome, B: A Cell of an Animal, C: An atom of Gold, D: A Molecule of Water, , Question no.4- Which of the following statements is true about 1 kilogram piece of iron on, the surface of Earth, Saturn and Jupiter?, A: The number of particles present in it will be the same., B: He will experience equal force., C: He will weigh the same weight., D: Its size will be different.

Page 3 :
Question no.5- Salman knew that on the surfaces that are cooler than vapour, vapour, condense on them. After taking a hot bath, he noticed that water vapour had condensed at many, places in the bathroom. This picture shows some bathroom accessories. Water vapour may have, condensed on which of these things?, , A: Only Q, C : only Q and S, , B: P and R only, D: All - P, Q ,R and S, , Question no.6- Mangrove plants grow in marshy areas near the sea. Their seeds germinate, on the branch of an original plant before falling to the ground., Which of the following statements can be considered true from this example of seed, germination?, A: All seeds can remain inactive for a long time., B: All seeds use food stored in themselves for germination., C: Not all seeds need soil to germinate., D: All seeds need air to germinate., , Question no.7- Simon looked out of the window of the bus moving at the uniform speed. He, saw things outside the bus moving backwards. He saw electric poles P, Q and R from the, window. Which of the following pillars will Simon see moving backwards at the fastest speed-, , A: P, C: R, , B: Q, D: All three pillars will be seen moving back at the same speed.

Page 4 :
Question no.8- Farhad wants to make a solar cooker in which water can be boiled. He reads, about different types of solar cookers and then creates an ongoing model of three new types of, cookers. What is the use of creating more than one working model?, A: The heat produced by using together is tripled by the heat of each model., B: By running all the three models together, it can be seen which model runs best., C: More models can be created in a short time., D: Models can be created from the same type of content., , Question no.9- Bhanu got up early in the morning and was walking around. He saw the sun, rising from his left. In 10 minutes he reached the end of the road. Then he turned and walked in, the same direction as he came from. In which direction will his shadow appear while returning, back?, , A: A, , B: B, , C: C, , D: D, , Question no.10- Here are pictures of four objects on which different types of forces are, working. In which picture are all the forces working on the object shown correctly?, ( Note: The arrows shown in the figure are showing only the direction of the force and not its, magnitude. ), A:, B:, , C:, D:, , Question no.11- A pain-healing drug was tried on patients with two groups of patients who

Page 5 :
had a long-standing back ache. Each group had 30 patients., Group 1 was given a tablet daily for a month containing 50 mg of medicine., Group 2 was given a tablet daily for a month containing 100 mg of medicine., At the end of the month, 25% of Group 1 people said their back pain had subsided and 35%, of Group 2 said their back pain had decreased., What should have been done to legalize this test?, A: Both groups should have been given same dose of medicine, B: This test should have been conducted on a large group consisting of at least 100 people., C: Instead of just one month, the test should have been done for three months., D:The third group should have been put up and tested, which would have been given tablets, without medication., , Question no.12- The whale shown in this figure emits an air bubble at the shown depth., Which of the following options correctly represents the size of the air bubbles moving up towards, the surface?, , A: A, B: B, , C: C, D: D

Page 6 :
Question no.13Hansa tried to light an electric bulb with the help of a battery and two wires, as, shown below. But the bulb did not glow. He thought of a possible reason why the bulb was not glow., To check for that reason, he took a new bulb, which was working and also a fully charged battery., What possible reason was she investigating?, , A: Bulb may be damaged., C: The battery may not be fully charged., , B: A wire may be broken., D: Wires can be made of different metals., , The tables shown in the question show the speed of sound in different mediums under different, conditions. Based on the information given in the tables,answer questions 14 ,15 and 16., Suhel took an air proof glass box. He measured the speed of the sound moving in the air inside the, compartment. Then he lit a candle and put it in the box and locked it. After some time the candle, went off i.e stop burning. He set aside the compartment for 24 hours without touching it and again, measured the sound speed in the compartment., , Question no.14: What would he have probably found out when he measured the sound speed, for the second time , compared to the first time?, A: It was increased, B: It was decreased., C: There was no change in that., D: Nothing can be said based on this information.

Page 7 :
Question no.15- Based on the information given above, what can be said about the speed of, sound in the different substances and the states of matter ?, A: The speed of sound is faster in metals than in other substances., B: The speed of sound is always the fastest in metals and then in decreasing order in liquids and, gases., C: The speed of sound depends on factors other than the states of matter., D: The speed of sound is faster in a medium with high temperature., , Question no.16 If some flying balloons are burst inside the glass box then what will be the, change in the speed of the sound A: It was increased., B: It was decreased., C: There was no change in that., D: Nothing can be said based on this information, , Question no.17 :Three friends targeted their laser pointer on a map hanging on the wall. Betty is, standing closest to the wall, Jessica is the farthest off the wall and Waheeda is in the middle. They, only waved their wrist, tracing the route from New York to Delhi with laser pointer on the map., Who among them has to turn their wrists the most ?, A: Betty, C: waheeda, , B: Jessica, D: They all have to rotate their wrists equally., , Question no.18 - There are four different types of screw lid bottles which are open. The grooves, in the lid of each bottle match the grooves on the bottle. If all the lids are completely closed , which, bottle will take the shortest time to open?, , A: A, , B: B, , C: C, , D: D, , Question no.19 what is the mass of neutronA: Equal to proton, B: Equal to electron, C: neutron is massless particle, D: equal to alpha particle, , Question no.20: Which statement are incorrect about diabetes insipidusA:It is due to decrease in ADH hormone secretion from pituitary gland, B: It is due to decrease in Anti Diuretic hormone secretion formed in hypothalamus, C: It is due to decrease in vasopressin hormone secretion released from pituitary gland and, formed in hypothalamus, D:It is due to less secretion of insulin hormone released from beta cells of pancrease

Page 8 :
Question no.21- The oxides of some substances are written in group 1 and group 2 in the table, below., , Which of the following criteria is used to distinguish the oxides written in Group 1 and Group 2 ?, , A: A, , B: B, , C: C, , D: D, , Question no.22- In two opposite conditions of light (position 1 and position 2), the eye images of, four different types of animals are given below. In each picture, the large sphere represents the, clean circle of the eye and the small sphere represents the pupil. Which of the following animals is, most, likely to be the best in both vision, darkness and light conditions?, A:, B:, , D, C, , Question no.23 - Astronomers have recently discovered a new planet. It has been observed, that the planet is orbiting two suns instead of orbiting a sun like earth. What can definitely be said, about this planet?, A: This planet does not have a cycle of day and night., B: The surface of this planet is warmer than earth., C: This planet has more weathers than Earth., D: This information is not enough to say anything for sure.

Page 9 :
Question no.24- Due to which phenomenon the water kept in earthen vessels or pot gets cool in, summer seasonA: diffusion, B: transpiration, C: osmosis, D: evaporation, Based on the given information, answer the questions from 25 to 27., Information:, Here's the data obtained by researchers studying wild animals in Africa., The graph reflects the body mass of the prey and the choice of a predator for a particular prey. For, example , priority means that it is the special prey that most predaters liked. Any value less than 1, represents low preference (choice)., , Question no.25 : This picture shows the spread of some animals hunted or becoming prey in a, forest., A wild life photographer wants to take a photo of the successful hunting of lions. In which area is, she most likely to get such a photo marked by the circle in the forest?, , A: A, , B: B, , C: C, , D: D, , Question no.26– Population of which predator is most likely to fall if the prey animals, weighing 20-50 kg gets decreased in the forest?, A: Hyena, B: Cheetah, C: Leopard, , D: Wild Dog

Page 10 :
Question no.27- As compared to other animals, the hyena can hunt which of the following, animals? Choose the most likely option., A: Small deer (15 kg), B: Impala (45 kg), C: Zebra (175 kg), D: Buffalo (505 kg), , Question no.28- Yasmin wants to see how the type of music has impact on the growth of, pea plants. She made an experiment as follows —, - she placed the similar pea plants in different sound resistant compartments., - kept a speaker in each box., - except Box 4, different types of music are played in each compartment, as given in the, table, , Which of these effects is most likely to appear?, A: Plants of all the boxes will grow to the same height., B: Box 3 plants will be higher than in other boxes., C: The plants of box 3 and 4 will be higher than other boxes., D: Until actual experiment takes place, there is a similar possibility of any of these effects., , Question no.29 This article shows the relationship between the amount of force applied, and the distance covered by two boxes X and Y kept on a surface,due to that force. Force, was applied on Both the boxes for a fixed period of time. The boxes X and Y are made of the, same kind of wood. -, , What statements about box X and Y can be correct based on this article?, , A: only R, C: Only P and R, , B: Only P and Q, D: All three- P, Q and R

Page 11 :
Question no.30- Asha noticed formation of bubbles from the base of a glass vessel kept on, the stove , as shown here. she described this observation as follows: 'There is a flame under, the glass vessel, so the water heats up quickly and water vapour starts forming in the bottom, of the vessel., , ., , What should she do to check this description?, A: The flame under the vessel should be slowed down., B: The water should be constantly shaken during heating., C: Water should be heated in another direction., D: Water should be heated in a low depth container., , Question no.31- It is a flat mirror. The mirror is placed on a stand and placed in front of a wall,, as shown below. The direct light of the sun is reflected on the wall by the mirror., , Which of the following figures correctly depicts that, reflectionA:, B:, C:, , D:

Page 12 :
Question no.32- The following circular diagram explains the diet of two Russian tribes. One, tribe lives in the beach area of Ulen and the other in the inner area of The Conchalan. Rana, gave four possible reasons, , for the difference in the diet of these two tribes. Which of the following causes does not, require any further information to check?, A: Different types of people like different kinds of things in food., B: Due to differences in climate in both places, they need a separate diet., C: Different types of equipment are used to obtain food in both the areas., D: People living on the beach depend more on the sea to get food., , Question no.33-- - Albert and David discussed what are the reasons for extinguishing, candles when air is blown from their mouths. They knew that the wind we blow from our, mouths helped the candle to extinguish. But Albert claimed that in addition to motion, the air, from the mouth is high in carbon dioxide, which also helps to extinguish the flame. David, wanted to check his claim. He prepared this experiment., - He filled balloon P with an air pump and filled a balloon Q to the same size as the air from, the mouth., -He released the air inside balloon P at different speeds on a candle flame and noted the, speed at which it was extinguished., - He repeated the process with a balloon Q from the same position., If Albert ' s claim is true , which of these will David be able to see?, A: The flame stopped with both the balloons at the same speed of air., B: The flame was extinguished by a low speed wind from the balloon Q as compared to, balloon P, C: The flame was extinguished by a high speed wind from the balloon Q as compared to, balloon P., D: There is not enough information in this experiment to draw any conclusions., , Question no.34—What will be the effect of removing ribosome from a cell –, A: formation of carbohydrate stops, C: formation of fat stops, , B: formation of protein stops, D: formation of enzymes stops

Page 13 :
Question no.35- One morning Yash noticed that the street in front of his house and the main, road were completely wet with rain. An hour later he noticed that the main road had dried up, but, the small street in front of his house was still wet. Here is a aerial view of the place where, Yash lives., , Which of the following statements describes what Yash saw?, , A: Only P and Q, C: Only Q and R, , B: Only P and R, D: All three- P, Q and R, , Question no.36 During heart operation, human heart continues to beat even after the supply of, nerves that convey messages from heart to brain is cut off because –, A) Because the human heart is a neurogenic heart, B) This is a natural activity because the heart beats for some time after the nerves are cut off, C ) Because the human heart is four chambered, D) The human heart is a myogenic heart with its own pacemaker, , Question no.37- Which of the following statements is not true for an atom?, A: Atoms cannot exist independently., B: Atoms are the basic units from which molecules and ions are formed., C: Atoms are always neutral in nature., D:Atoms combine in large numbers to form matter that we can see, experience or touch., , Question no.38- When moving from left to right in the period of periodic table ,the, size of an atom generallyA: Increases, B:Decreases, C: There is no special change., , D: First decreases and then increases.

Page 14 :
Question no.39- How many bonds are there in the formula of Pentane (C₅H₁₂)., A: 5 Covalent Bond, B: 12 Covalent Bond, C: 16 Covalent Bond, D: 17 Covalent Bond, Question no.40- What happens when an acid is added to an alkali?, A: The temperature of the solution increases, B: The temperature of the solution decreases, C: The temperature of the solution remains the same, D: Salt is formed, , Question no.41- A soap molecule containsA: Hydrophilic head and hydrophobic tail, B: Hydrophobic head and hydrophilic tail, C: Hydrophobic head and Hydrophobic tail, D: hydrophilic head and hydrophilic tail, , Question no.42- A few drops of concentrated acid accidentally fall on a student's, hand. What should he do?, A: Wash hands with saline water, B: Wash the hand with excess water and apply a paste of sodium hydrogen, carbonate., C: Wash the hand with excess water and apply a solution of sodium hydroxide., D: Neutralize acid with strong alkali., , Question no.43 Which of the following biomolecules contains nitrogen A: Protein, B: DNA, C: RNA, D: All of the above, Question no.44 - Insulin is secreted by which organ in the human body –, A: from intestine, B: from gastric juice, C: from liver, D: from pancreas

Page 15 :
Question no.45- Write the IUPAC name of the following, A: 1-Chloro-2-Nitro-4-Methylbenzene, compoundB: 1-Chloro-4-Methyl-2-Nitrobenzene, C: 2-Chloro-2-Nitro-4-Methylbenzene, D: m-Nitro-p-Chlorotoluene, , Question no.46- The structural formula of the benzene is –, , Question no.47 In which is the Bilirubin found:, A: in the gastric juice, B: in bile juice, C: in pancreatic juice, D: in the intestinal juice, Question no.48 Which is called as an Emergency hormone –, A: Vasopressin, B :adrenaline, C: oxytocin, D: thyroxine, Question no.49- Which of the following is an example of homologous organs :, A: Our hands and dogs forelimbs, B: bats and bird wings, C: Butterfly and bird wings, D: Bats and butterfly wings, Question no.50 -Which of the following is the type of muscular tissue –, A: striated, B: un-striated, C: Cardiac, D: All of the above, Question no.51- What are the animals that directly give birth to the baby are, called A: viviparous, B: oviparous animal, C: ovo-viviparous, D:None of the above

Page 16 :
Question no.52- Due to the presence of which of the following, a plant cell is, different from the animal cell A: due to presence of cytoplasm, B: due to presence of nucleus, C: due to presence of cell membrane, D: due to presence of cell wall, Question no.53- If a conductor wire is pulled and doubled, then resistance of the, wire will become :, A: Double, B: Four times, C: Eight times, D: Half, Question no.54- In the event of refraction, if the angle of incidence is larger than, the angle of refraction, the light ray is probably entering –, A: water to glass, B: Glass to Air, C: Glass to water, D: air to vacuum, Question no.55- Actions and reaction forces work –, A: on different objects ,in the same direction, B: on the same object, in opposite direction, C: on different objects in opposite direction, D: on one object in same direction, Question no.56-A student leaves home for school which is 3KM away from home., .When he return home after school ends,the displacement of the Student will be A: 3KM, B: 6KM, C: 0 KM, D: 4.5 KM, Question no.57- Dry ice is –, A: solid NH₃, , B: solid SO₂, , C: solid CO₂, , D: solid N₂, , Question no.58- Objects of two different masses , P and Q are moving with the, same momentum .If the mass of P is more than the mass of Q, which one needs, to be applied more force to stop –, A: P, B: Q, C: Equal force on both, D: will depend on the time taken to stop, Question no.59-Doubling the mass of two objects and increasing the distance, between them four times ,will lead to change the gravitational force between, them:, A: twice than before, B: Quarter of the first, C: Same As before, D: four times the first, Question no.60- In which of the following activities, does work is being done:, A: stopping a Car when brakes are applied, B: Trying to move a heavy box on the ground, C: keeping a box over the head by a person and moving here and there, D: To tie a stone in a thread and rotate it in a circular path

Page 17 :
Question 61-The ice that occurs on the surface of the ice layer in Antarctica is like, a sponge in which air flows between ice particles. When more snow accumulates, on top of it, the ice below freezes like layers and captures air bubbles. The depth of, the ice layer corresponds to the age of the layer. By analyzing the air bubbles, trapped from the layers below, the ratio of different gases in the air of the past is, known., Which of the following should not be affected by temperature so that this analysis, is absolutely correct?, A: Volume of gases, B: Pressure of gases, C: Composition of gases, D: The size of bubbles, Question no.62- One unit of electric energy is spent on:, A: 100 Watt power device running for one hour, B:100 Watt power device running for 10 hours, C: 10 Watt power device running for 1 hour, D:1000 Watt power device running for 10 hours, Question no.63-The following is an example of straight line motion:, A: Speed of the ball falling down under gravity, B: speed of boat in static and still lake, C: motion of an artificial satellite, D: speed of bullet from a gun, Question no.64-What is the joint of two nerve cells called –, A: Synapse, B: Myelin Sheath, C: Axolemma, D: Impulse, Question no.65- Which of the following are the parts of the human eyeA: Cornea, B: Lens, C: Retina, D: All of the above, Answer Questions Nos. 66 and 67 on the basis of the following information:, Information:, , Here is a device that measures the rate of fuel consumption while burning the, flame. Turpentine is used as fuel here. At the end of the tube is a cotton thread ,, one end of which is immersed in turpentine and the other end of it can be lit. The, rate at which the air bubble moves to the left in the tube represents the rate of fuel, consumption., , Question No.66 -The smallest change that can be measured by a device is called

Page 18 :
sensitivity of the device. What change in this device would affect its sensitivity?, , A: only P, C: only P and R, , B: only P and Q, D: only Q and R, , Question No.67- Priya measured the rate of consumption of turpentine using this, device. The results are represented by Line P in the article. she changed a factor, and measured it again and represented the result by line Q in the graph-, , What would she have done to get the result of line Q?, A: The length of the thread must have been reduced, B:The width of the thread must have been increased, C: Length of the tube must have been increased, D: The amount of oxygen around the flame must have been reduced, Question No.68- Mercalli measurement scale is used to measure the intensity of, earthquake. It established its value by interacting with people who experienced the, earthquake and seeing the damage to the structures. Some of the levels of this, scale are as follows:, , In the event of a mild earthquake, in which of the following places will the values of, Mercalli scale be the least ?, A: A large school where children are sitting in classrooms, B: A big town near the industrial area, C: In a desert with the Bajara tribe, D: In a city with a large population

Page 19 :
Question No.69- Look at the figure below, , When only the red light is lit, the black shadow of an object appears on position, P. When only the blue light is lit the black shadow of an object appears on the, position Q. If both the lights are lit together, then what will be the colour of the, shadows on position P and Q?, , Question No.70- Hamid saw a row of ants between the source of the food and the, nest, as shown in Figure1. The ants were moving in both directions. Some ants, were carrying food. He then put a barrier in the middle of the queue, as shown in, Figure 2. He then looked at the queue for a while. His observation is shown in, Figures 3 and 4 ., , From the observations in Fig-2, 3 and 4, he concluded that ants find the shortest, way between the two points. To check the validity of this conclusion, which change, in Figure 4 will be most appropriate?, A:, , C:, , B:, , D:

Page 20 :
National achievement survey, Practice Paper - THIRD, Class-10, Subject – Science ( Answer key ), Question No. - Answer No, , Question No. - Answer No, , Question No. - Answer No, , 1–B, , 26 – C, , 51 – A, , 2–A, , 27 – C, , 52 – D, , 3–B, , 28– D, , 53 – B, , 4–A, , 29 – C, , 54 – A, , 5–D, , 30 – C, , 55 – C, , 6–C, , 31 – D, , 56 – C, , 7–A, , 32 – D, , 57 – C, , 8–B, , 33 –B, , 58 – C, , 9–B, , 34 – B, , 59 – B, , 10 – C, , 35 – A, , 60 – A, , 11 – D, , 36 – D, , 61 – C, , 12 – C, , 37 – D, , 62 – B, , 13 – B, , 38 – B, , 63 – A, , 14 – B, , 39 – C, , 64 – A, , 15 – C, , 40 – D, , 65 – D, , 16 – A, , 41 – A, , 66 – B, , 17 – A, , 42 – B, , 67 – B, , 18 – D, , 43 – D, , 68 – C, , 19 – A, , 44 – D, , 69 – A, , 20 – D, , 45 – D, , 70 - D, , 21 –B, , 46 –C, , -, , 22 –A, , 47 –B, , -, , 23 –D, , 48 –B, , -, , 24-D, , 49 -A, , 25 - A, , 50 -D