Science
Class 9-
20Lectures
-
37:24:37Duration
-
Course description
Science is an important subject at this level especially for students who are appearing for various competitive exams like Olympiad and NTSE, as well as for students who want to opt for Science stream in higher secondary education.
Unit I: Matter - Nature and Behaviour
Definition of matter; solid, liquid and gas; characteristics - shape, volume, density; change of state-melting (absorption of heat), freezing, evaporation (cooling by evaporation), condensation, sublimation.
Nature of matter: Elements, compounds and mixtures. Heterogenous and homogenous mixtures, colloids and suspensions.
Particle nature, basic units: Atoms and molecules, Law of constant proportions, Atomic and molecular masses. Mole concept : Relationship of mole to mass of the particles and numbers.
Structure of atoms: Electrons, protons and neutrons, valency, chemical formula of common compounds. Isotopes and Isobars.
Unit II: Organization in the Living World
Cell - Basic Unit of life: Cell as a basic unit of life; prokaryotic and eukaryotic cells, multicellular organisms; cell membrane and cell wall, cell organelles; chloroplast, mitochondria, vacuoles, endoplasmic reticulum, Golgi apparatus; nucleus, chromosomes - basic structure, number.
Tissues, Organs, Organ System, Organism: Structure and functions of animal and plant tissues (four types in animals; meristematic and permanent tissues in plants).
Biological Diversity: Diversity of plants and animals - basic issues in scientific naming, basis of classification. Hierarchy of categories / groups, Major groups of plants (salient features) (Bacteria, Thalophyta, Bryo phyta, Pteridophyta, gymnosperms and Angiosperms). Major groups of animals (salient features) (Non-chordates upto phyla and chordates upto classes).
Health and Diseases: Health and its failure. Infectious and Non-infectious diseases, their causes and manifestation. Diseases caused by microbes (Virus, Bacteria and protozoans) and their prevention, Principles of treatment and prevention. Pulse Polio programmes.
Unit III: Motion, Force and Work
Motion: Distance and displacement, velocity; uniform and non-uniform motion along a straight line; acceleration, distance-time and velocity-time graphs for uniform motion and uniformly accelerated motion, equations of motion by graphical method; elementary idea of uniform circular motion.
Force and Newton's laws: Force and Motion, Newton’s Laws of Motion, Action and reaction forces, Inertia of a body, Inertia and mass, Momentum, Force and Acceleration. Elementary idea of conservation of Momentum.
Gravitation: Gravitation; universal law of gravitation, force of gravitation of the earth (gravity), acceleration due to gravity; mass and weight; free fall.
Floatation: Thrust and pressure. Archimedes' principle, buoyancy, elementary idea of relative density.
Work, energy and power: Work done by a force, energy, power; kinetic and potential energy; law of conservation of energy.
Sound: Nature of sound and its propagation in various media, speed of sound, range of hearing in humans; ultrasound; reflection of sound; echo and SONAR. Structure of the human ear (auditory aspect only).
Unit IV: Our environment
Physical resources: Air, Water, Soil. Air for respiration, for combustion, for moderating temperatures; movements of air and its role in bringing rains across India.
Air, water and soil pollution (brief introduction). Holes in ozone layer and the probable damages.
Bio-geo chemical cycles in nature: Water, oxygen, carbon and nitrogen.
Unit V: Food Production
Plant and animal breeding and selection for quality improvement and management; use of fertilizers, manures; protection from pests and diseases; organic farming.
Tags
Class 9 science,CBSE,Study Material
Course content
-
11CHAPTERS
-
0Videos
-
20Pdfs
my skills
Course Features
-
LanguageEnglish
-
CategoryClass 9
-
AvailablityFull Time
-
Training Assessment No
-
Certification No
-
Last updated07 Oct,2021
-
Course by:Hunar India
Hunar FAQ's
Q. Why should I purchase your content when everything is available on internet?
Ans. 1- Free content may not be aligned with your school's curriculum. This can make
it
difficult to use the content to supplement your studies or to prepare for exams.
2- If you have questions about the content, you may not have access to support from
the instructor or other students. This can make it difficult to get help if you are
struggling with the material.
3- There will be no certification for your learning or task completion.
4- We will provide certificate which will be issued in association with NSDC
(National Skill Development Council).
5- We will help you to connect with the experts of the field.
Q.Why there is no signature of any authority on the certificate which is issued?
Ans. Only the e-certificate will be made available. Hard copies will not be dispatched.It will be e-verifiable at iid.org.in
Q. I have already purchased subscription of other portals, why should I purchase
your subscription now?OR What sets your platform apart from other Ed Techs?
Ans. Hunar India is a flag bearer of common mission and vision of NSDC & OLExpert which is to catalyze entrepreneurship oriented skill development through knowledge dissemination. You will not get variety of courses on a single platform anywhere else, we provide school, college, entrance & competitive segment we also have entrepreneurship programs. We provide complete industrial solutions to fulfill the dream of young entrepreneurs. USP of our courses is that we focus on skill courses and practical implementation of theoretical knowledge. Our job oriented courses help youth to be employed. While our hobby courses give multiple options to make your hobby as a source of earning. We provide a unique family subscription plan which allow you to make a customize package, selected from all verticals. You can also purchase dashboard subscription which allows you to access all available data of a particular dashboard (Vertical). We provide e-certificate for each course, these certificates will have your name and logo of NSDC, IID, OL Expert & Hunar India. (YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF YOU FULFILL THE REQUIRED CRITERIA)
Q. How will I get certificate for PBL?
Ans. There are few simple steps to get certificate.
1- Watch the episodes of purchased project. Your watch time should be minimum
75%
2- Pass the assessment of a particular project.
3- Make and submit a project report on the basis of a given prototype project
report.
4- Certificate will be issued online on your id.
Q. How can I contact support if I have any issue?
Ans. Our contact details are given below for any query. Phone No: +91 95-5966-8222, +91 95-5966-9222, +91 91-2585-5550 or you can drop a message on given email id, [email protected] or [email protected]
Q. Can I get refund if I’m not satisfied with the course?
OR
Do you offer any kind of support during the course?
Ans. We may provide a live session with the expert to solve all the queries and doubts. We are also providing digital content and PDF, hence there is no provision of refund.
Q. Can I try out a sample lesson before purchasing any package?
Ans. Demo videos are available with each and every package/ course. Any one can watch it before taking their decision or purchase.
Q. How qualified are your instructors/Faculties/ Trainers and what is their
experience?
Ans. Our trainers have proved their potential by giving technical assistance in many government projects. They are also associated with defence projects. We have highly qualified faculties who have huge experience in their field. A number of students have been selected in different competition, under their guidance. Our Industrial Experts are working in renowned industries and have sound experience in their field.
Please rotate your device
We don't support landscape mode yet. Please go back to Portrait mode for the best experience.
Hunar India
Typically replies within a day
Hunar India
Hi there
How can I help you?
12:06
