Here we have given NCERT Solutions for Class 9 Science Chapter 2 Is Matter Around Us Pure. Board CBSE Textbook NCERT Class Class 9 Subject Science Chapter Chapter 2 Chapter Name Is Matter Around Us Pure Number of Questions Solved 21 Category NCERT Solutions NCERT Solutions for Class 9 Science Chapter 2 Is Matter Around … Read more
Here we have given NCERT Solutions for Class 9 Science Chapter 1 Matter in Our Surroundings. Board CBSE Textbook NCERT Class Class 9 Subject Science Chapter Chapter 1 Chapter Name Matter in Our Surroundings Number of Questions Solved 26 Category NCERT Solutions NCERT Solutions for Class 9 Science Chapter 1 Matter in Our Surroundings INTEXT … Read more
Here we are providing MCQ Questions for class 9 Science Chapter 8 Motion. These questions are prepared by subject experts. Students can practice these questions for better performance in the exam. Answers are kept hidden. You will be able to check the answer by clicking on the ‘Answer‘ given below each question MCQ Questions for … Read more
Here we are providing MCQ Questions for class 9 Science Chapter 3 Atoms and Molecules. These questions are prepared by subject experts. Students can practice these questions for better performance in the exam. Answers are kept hidden. You will be able to check the answer by clicking on the ‘Answer‘ given below each question Class … Read more
Q.1. What is the name of the metal which exists in liquid state at room temperature?(a) Sodium(b) Potassium(c) Mercury(d) Bromine Answer (c) Mercury Q.2. When the liquid is spun rapidly, the denser particles are forced to the bottom and the lighter particles stay at the top. This principle is used in:(a) Centrifugation(b) Fractional distillation(c) Evaporation(d) Tunneling Answer … Read more
1. In which of the following conditions, the distance between the molecules of hydrogen gas would increase?(i) Increasing pressure on hydrogen contained in a closed container(ii) Some hydrogen gas leaking out of the container (iii) Increasing the volume of the container of hydrogen gas(iv) Adding more hydrogen gas to the container without increasing the volume of … Read more
CBSE Class 9 Science Chapter 5 Fundamental Unit of Life: Cell NCERT Solution Main topics covered in this part of CBSE Class 9 Science, The Fundamental Unit of Life: Study Notes, are: Definition of Cell Shape and Size of Cell Types of Cell Structure of Cell Cell Organelles Difference Between Animal Cell and Plant Cell … Read more
Study Notes for CBSE Class 9 Science Chapter 2 Is Matter Around Us Pure ‘Pure’ word means that there is no mixing in a substance. But according to scientific language all things are mixture of so many substances, not of single one. That’s why they are not pure. e.g., Milk, water, fat, etc. • Pure … Read more
MatterThe matter is the material of which everything in this universe, in and around us is made up of in different shapes. It is anything that occupies space and has mass and offers resistance to any applied force.Physical Nature of Particles :Matter is made up of particles. The particles of matter are very-very small. Characteristics … Read more
Sound (i) The sensation felt by our ears is called sound. (ii) Sound is a form of energy which makes us hear. (iii) Law of conservation of energy is also applicable to sound. (iv) Sound travels in form of wave. Production of Sound Sound is produced when object vibrates or sound is produced by vibrating … Read more
Work For doing work, energy is required. • In animals, energy is supplied by food they eat. • In machine, energy is supplied by fuel. Not much work inspite of working hard : Reading, writing, drawing, thinking, analysing are all energy consuming. But in scientific manner, no work is done in above … Read more
Sound Important Notes 1. Sound is a mechanical energy which produces sensation of hearing. 2. For hearing sound there must be (i) a vibrating body, … Read more
Thrust & Pressure Questions from board papers Science Chapter- 10 (Part-2) Thrust & Pressure (Questions from Board Papers) Very Short Answer Type Questions: Question 1: How is pressure related to thrust? Answer 1: Pressure = Total thrust / Total surface area Question 2: Name the SI unit of pressure. Answer 2: Pascal (Pa) [ 1 Pa = … Read more
Gravitational Force of Earth If we release a small stone without pushing it from a height, it accelerates towards earth. The stone is when accelerated towards earth, means some force is acting on it. The force which pulls the objects towards the centre of the earth is known as gravitational force of the earth. Here, … Read more
Study Notes for CBSE Class 9 Science Chapter 9 Force and Laws of Motion Forces and Laws of Motion : Force : It is the force that enables us to do any work. To do anything, either we pull or push the object. Therefore, pull or push is called force. Example, to open a door, … Read more
Facts that Matter Heredity is the transmission of characters or traits from the parents to their offspring. Variation is the difference in the characters or traits among the individuals of a species. Accumulation of Variations Sexual reproduction of organisms produces variations. The variations produced in organisms during successive generations get accumulated in the organisms. … Read more
