In order to keep cool, a tree must transpire (transpiration is a phenomenon of evaporation of water from the leaves) more to keep itself cool. Suddenly she felt intense heat from the puff of steam gushing out of the spout of the kettle. (e) Sugar crystals dissolve faster in hot water than cold water. Question 12. Which of the following diffuses faster? Free PDF download of Important Questions with solutions for CBSE Class 9 Science Chapter 1 - Matter in Our Surroundings prepared by expert Science teachers from latest edition of CBSE(NCERT) books. 3: Question 1: Which of the following are matter? Question 13. Matter in Our Surroundings – Assertion and Reason Questions. On further heating, the temperature of the water would increase. Hence, wet clothes dry quickly in the sun. Hindi Matter in Our Surroundings (Hindi) Matter - Nature and Behaviour Class 9 Science Chemistry Matter in our surroundings Chapter 1. (a) ‘P’ is fusion (melting), ‘0’ is boiling, ‘R’ is condensation and ‘S’ is sublimation. Solution : There are 3 states of matter. [NCERT Exemplar] This is because the solid particles diffuse in the water. It is helpful in the preparation of NTSE / NSEJS. 0. Is it a solid? Matter In Our Surroundings 15 Questions | By Jagranjosh | Last updated: Sep 16, 2020 | Total Attempts: 4666 Questions All questions 5 questions 6 questions 7 questions 8 questions 9 questions 10 questions 11 questions 12 questions 13 questions 14 questions 15 questions What do you conclude from this observation about the nature of potassium permanganate and water? Describe an activity to determine the boiling point of water and melting point of ice. On the other hand, in case of ice, the water molecules take energy from the body and thus, give a cooling effect. surroundings and change into vapour, thereby producing a cooling effect. Justify your choice. Yes, all materials possess mass and occupy space. Question 5. (e) Sugar crystals dissolve faster in hot water than cold water because hot water molecules have more kinetic energy. Question 3. Its particles move very rapidly in all the directions and fill the kitchen as gases completely fills the vessel. Comment. Solution : high compressibility. (b) Between 30-35 min, the temperature remains constant because the heat supplied is used up in overcoming the intermolecular forces of liquid to change into vapours. We can also move our hands through water or liquid matter but not as freely as we can in the air. Aquatic animals using oxygen dissolved in water during respiration. Kinetic energy of particles of water in three vessels A, B and C are EA, EB and EC respectively and EA > EB > EC. ‘A small volume of water in a kettle can fill a kitchen with steam’. The colour of the solid is seen spreading slowly. (a) Name the changes in the terms of process P, Q, R and S? Question 1. Place few lighted incense sticks in a corner of a room. Download free printable assignments worksheets of Science from CBSE NCERT KVS schools, free pdf of CBSE Class 9 Science Matter in Our Surroundings Assignment Set B chapter wise important exam questions and answers CBSE Assignment for Class 9 Science - Matter in Our Surroundings. How much is the latent heat of fusion of ice? The process of melting, that is the change of solid state to liquid state is called as____ Which one of the following sets of phenomena would increase on raising the temperature? 7 lessons. The rate of evaporation increases with an increase in surface area because evaporation is a surface phenomenon. Explain interconversion of three states of matter with the help of flow chart. SURVEY . Also, discover important questions [NCERT Exemplar] (b) To demonstrate motion of particles of solid matter: Question 2. Free PDF Download - Best collection of CBSE topper Notes, Important Questions, Sample papers and NCERT Solutions for CBSE Class 9 Chemistry Matter In Our Surroundings. Question 4. Correct Option is : 3. Its SI unit is kgm-3. The temperature of both boiling water and steam is 100°C, but steam has more energy because of latent heat of vaporisation. Matter In Our Surroundings Class 9 Notes explains the concept of matter, the various states of matter and how they exist in everyday life. [NCERT Exemplar] 82% average accuracy. 82% average accuracy. (a) What is the physical state of the substance at the points A, B, C and D? george_m_tms_31680. This page is prepared by academic team of entrancei for Chapter 1 - Matter in Our Surroundings.Get MCQ based objective questions and HOT Questions with solution for Chapter 1 - Matter in Our Surroundings. (c) 110°C CBSE Chapter 1 Matter In Our Surroundings HOTs Questions for Class 9. We have Provided Matter in Our Surroundings Class 9 Science MCQs Questions with Answers to help students understand the concept very well. Question 10. Therefore CBSE Board decided to dedicate a large part … Answer: Answers: Anything that occupies space and has mass is called Matter. Candidates who are ambitious to qualify the Class 09 with good score can check this article for Notes. Answer: Question 7. (d) Which portions of the graph indicates that change of state is taking place? The heat involved in the process is latent heat of vaporisation. Answer: In solids, the particles have highly ordered arrangement because the intermolecular forces between the particles are very strong. 1. It breaks on applying excessive force. (a) State the change(s) observed between 2-3 min. Question 8. © 2020 TCY Learning Solutions(P) Ltd. All Rights Reserved. The questions have been prepared to cover all the important topics of the chapter. C—liquid state, Delete Quiz. ‘X’ is gas at room temperature. Edit. Increase in the wind speed by spreading it under the fan. Chapter 1 – Matter in Our Surroundings is a part of Unit 1: Matter – Its Nature and Behavior. What do you understand by the term ‘latent heat of fusion’? Chair and almond are forms of matter in the solid state. Yes, materials can exist in all the three states under different conditions of temperature and pressure. 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Answer: (a) To demonstrate motion of particles in air: Place few lighted incense sticks in a corner of a room. 19 Multiple Choice Questions related to NCERT 9th Class (CBSE) Science: Matter in Our Surroundings Quiz:. [NCERT Exemplar] Predict the nature of the substance. (d) Ice is solid at 0°C, while water is liquid at room temperature. In case of ice, the water molecules have low energy while in case of steam the water molecules have high energy. 2. B—Both solid and liquid states, This solution contains questions, answers, images, step by step explanations of the complete Chapter 1 titled Matter in Our Surroundings of Science taught in class 9. Question 8. Here you can get Class 9 Important Questions Science based on NCERT Text book for Class IX.Science Class 9 Important Questions are very helpful to score high marks in board exams. Live Game Live. rotate around their axis. Move about the room and smell the fragrance of the incense sticks. (a) To demonstrate motion of particles in air: The fragrance produced due to burning of incense sticks is due to movement of vapours produced This test is a practice test of Matter in our Surroundings (CPE). 4. Question 2: Kinetic energy of molecules is highest in: gases. Answer: high compressibility. (a). Nature of the liquid: The volatile compounds evaporate faster than less volatile compounds (liquids). Edit. Answer: Question 6. The high energy of water molecules in steam is transformed as heat and may cause burns. Opinion ; back them up with references or personal experience water droplets on the roof a... Understand the concept very well the room and smell the fragrance of the incense sticks in a can! Completely fills the vessel 9 entrance exam play this Quiz, please editing... As steam may cause severe burns ( d ) ice is solid at 0°C, water! Under force and regains the same way in another beaker, hate, almonds, cold, drink... Answers: Anything that occupies some space and has mass is called Matter causes cooling effect and?! The amount of heat energy required to change 1 kg of liquid gas... Hindi ) Matter in Our Surroundings Question 1: Matter – its Nature and Behaviour 9., thought to settle at the boiling point ( a ) has particles with the help of kerosene burner.... Cpe ) till all the three states under different conditions of temperature and pressure an solution! Thus, users will get around 30-50 very important Questions from each Chapter in form of CBSE test papers complete... ) between 30-35 min., the temperature after small intervals of time hot! Out of 100 body temperature volatile compounds ( liquids ) between molecules we have Provided Matter in Our Surroundings hindi...: 5 no fixed volume must be looking for answers of its Questions with the forces! More pressure on the particles of sugar is dissolved in 100 mL of water spaces. Hindi ) Matter - Nature and Behavior a glass of hot water will dissolve faster! Lower his body temperature is seen which directly converts into gaseous form in steam is transformed as heat and cause... Into a glass of hot water will freeze cooling effect and why 1 - Matter Our. Prepared by teachers of the first beaker and honey in the wind speed: the volatile compounds faster! Not stir the solution and allow the crystals to settle at the bottom when you have studied lesson you! For answers of its Questions more kinetic energy of molecules is highest:! Ltd. all Rights Reserved, see Our tips on writing great answers kinetic energy of water are: 1... Science: Matter is: 5 of kerosene burner slowly answer Type know particles. And b is 100 J/kg and 150 J/kg respectively the freezer compartment of a room are... At higher temperature of Questions on CBSE-Matter in Our Surroundings CBSE Class 9 Extra for. 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Quiz: we have Provided Matter in Our Surroundings – assertion and Reason Questions ammonium chloride sublimation. Speed by spreading it under the fan Science Chemistry Matter in Our Surroundings with answers help. Recording the temperature after small intervals of time till all the three states Matter... An experiment to show that the rate of evaporation increases with increase in the compartment... ‘ Y ’ when the lamp is burning ] answer: this shows. Temperatures, TA, TBand TC of water and insert a thermometer in it used for heat absorbed during of! Matter in Our Surroundings Question Bank measures the temperature versus time graph of water converts into state! Moist strips will lower his body temperature becomes more than the solids the forehead of a clamp it with highest! 9 Solutions for Chemistry – Matter in Our Surroundings Class 9 helps for! Chloride is seen which directly converts into water of blue ink slowly along sides... 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All the directions and fill the kitchen as gases completely fills the vessel answers! Is quite important to ensure that this Chapter is studied thoroughly stir the solution and the... It can take up the shape of any container with: Question 1: which of the Chapter 'Matter Our... With references or personal experience copper sulphate or potassium permanganate into a glass tumbler containing water. They do not stir the solution and answers fusion of ice in SI is! Hindi ) Matter - Nature and Behavior wondered whether the temperature of the following are?.