CBSE Class 9 Science - Improvement in Food Resources - Very Short Answer Based Questions (Part-1)(#eduvictors)(#class9Science)

Improvement in Food Resources

Very Short Answer-Based Questions (Part 1)

Class 9 Science

CBSE Class 9 Sample Question Papers (Mid-Term) 2019-20 (#class9Papers)(#eduvictors)

Class 9 Sample Question Papers (Mid-Term) 2019-20

CBSE Sample Papers for Class 9 are taken into consideration as the best option to understand the question paper pattern very well. It's crucial to be in touch with all basic principles and concepts a few days before the final examination, to reduce the examination stress and be prepared for it. The quality manner to accomplish that is to exercise with Sample Question Paper for Class 9. Class 9 Sample Question papers are available as pdf downloads at Eduvictors.

Practising with CBSE Sample Papers for Class nine not only familiarises you with all chapters of a subject similarly however also enables apprehend your particular problem factors, be it HOTS or MCQ! Giving due significance to subjects primarily based on their weight in keeping with NCERT Syllabus gets you one step closer to getting to know the Class nine annual exam. Solving an ample variety of sample papers, together with the last years' pattern papers, has been the recommendation to students.

It enables in breaking down the question-paper into separate time slots in the 3-hour examination duration, as in line with your ability, so that point is not a cause to worry throughout the examination. It helps you get ready to face examination with confidence.

Here are links of mid-term SQPs from various schools:

CBSE Class 9 - Chemistry - Is Matter Around Us Pure? - Q & A (Part-1)(#eduvictors)(#cbsenotes)

Is Matter Around Us Pure?

Class 9 Chemistry

Questions and Answers (Part-1)

Amazing Human Body - Quick Facts (#humanbody)(#eduvictors)

Amazing Human Body - Quick Facts 

1.  The hardest bone in the human body is the jawbone.

2.  The number of eye blinks varies greatly from about 29 blinks each minute if you are talking to someone to only 4 blinks each minute if you are reading.

3.  The average human blinks 25 times per minute.

4.  A nail takes around 6 months to grow from base to the tip.

5.  Each second 10,000,000 cells die and are replaced in your body.

Class 9 - Biology - Cell: Fundamental Unit Of Life - Cell Membrane - Structure and Functions (#cbsenotes)(#eduvictors)

Cell Membrane - Structure and Functions

Class 9 - Biology - Cell: Fundamental Unit Of Life

Plasma Membrane Diagram
Image Credits: Ruth Lawson. Otago Polytechnic Wikimedia

Structure:

1. Cell membrane is also called as plasma membrane or plasma lemma.
    
2. It is the limiting boundary of each cell which separates the cytoplasm from its surroundings.
   
3. It is found in both plant as well as animal cells.
   
4. It is the outermost covering of a cell in case of animals and lies below the cell wall in case of plants.
    

CBSE Class 9 - Biology - Chapter 5 - Fundamental Unit Of Life - Very Short Answers Based Questions (Set-1)

Cell: Fundamental Unit Of Life - 

Very Short Answers Based Questions (Set-1)

Class 9 Biology

Cell Types: Prokaryotes and Eukaryotes
Image credits: Wikimedia 

1. Name the largest cell of living world ?

2. Amoeba is a _______________ organism.

3. Who gave the fluid mosaic model of plasma membrane?

4. Movement of solvent into the cell is called as_____________ .

5. Which cell organelle is called as the ‘Head quarter of cell’?

CBSE announces revised syllabus for Class IX and Class X Students for session 2019-20

CBSE announces revised syllabus for Class IX and Class X Students for session 2019-20

After the statement of the reduction of NCERT syllabus from 2019-20 session, CBSE  students have gained big relief. According to CBSE officials, the primary cuts might be there within the Social Science syllabus (around 15% cut).

Please buy latest editions  (2019) of NCERT books. Even examination question patterns have modified a lot. MCQs and Assertion type questions will be introduced.

As far as Secondary and Senior Secondary Curriculum 2019-20 is concerned, the changes notified vide Circular Nos. Acad-3/2019 dated 10.01.2019, Acad11/2019 dated 06.03.2019 and Acad-12/2019 dated 08.03.2019 are incorporated in the respective Curriculum documents.

Here follows the subjects students can opt for:

CBSE Class 9 - Science Annual Sample Question Paper (2018-19) (Set-1)(#cbsepapers)(#eduvictors)

CBSE Class 9 - Science
 Annual Sample Question Paper (2018-19)
(Set-1)

Getting good marks is very important for students of class 9. For this one must practice and attempt sample question papers within time limits.

Here follows a sample question paper on Science subject that will help you revise and practice.

Help Guide(s) on Class 9 Science:

1. Xam Idea Complete Series Science for CBSE Class 9 

CBSE Class 9 - Chemistry - Atoms and Molecules (MCQS)(#cbsenotes)(#eduvictors)

Chemistry - Atoms and Molecules 

(MCQs)

Q1: Identify the correct symbol of gold:
a. Ag
c. Gd
b. Ge
d. Au

Q2: Which of the following is tri-atomic?

a. Oxygen gas
b. Hydrogen gas
c. Ozone gas
d. Ammonia gas


Q3: The combining capacity of an element is called

a. Valency
c. Atomic number
b. Atomicity
d. Valence electrons

CBSE Class 9 - Biology - Class of Living Organisms (Worksheet-2)(#cbsenotes)(#eduvictors)

Diversity in Living Organisms (Worksheet-2)

Classification

Fill in the blanks with suitable words.


1. Grouping of things on the basis of certain common characteristics is called __________.


2. There are two systems of classification — the ________ system and the ________ system.


3. Carolus Linnaeus divided all organisms into two kingdoms - ________ and __________.

4. ________ arranged all living organisms into five kingdoms - Monera, Protista, Fungi, Plantae and Animalia.

CBSE Class 9 - Physics - Work, Power and Energy - Worksheet (#eduvictors)(#cbsenotes)

Class 9 - Physics 

Work, Power and Energy 

Worksheet

Fill in the blanks with suitable words.

1. Energy is the __________ to do work. Its S.I. unit is ________.


2. Work is force multiplied by ___________ in the direction of force.


3. If the angle between force and the displacement caused is acute then work is said to be ________.


4. If the angle between force and the displacement caused is obtuse, the work is said to be _______.


5. One joule of work is said to be done when a force of ______ displaces a body through a distance of ________ in its own direction.

CBSE Class 9 - Biology - Chapter 7 - Diversity in Living Organisms (Worksheet) (#eduvictors)(#cbsenotes)

Diversity in Living Organisms (Worksheet)

Fill in the blanks with suitable words.


1. _____________ is the division of organisms on the basis of characteristics into groups and sub-groups. It helps us in exploring the diversity of life forms.


2. A ___________ which forms the basis of classification, may be a particular form or function.


3. _____________, in 1969 proposed ‘Five kingdoms classification’ of living organisms.


4. In 5 kingdoms classification, the hierarchy can be represented as ___________ sub grouping into _______ for animals or _________ for plants.

CBSE Class 9 - Science Practice Sheet (1 Mark Questions Answers)(#cbsenotes)(#eduvictors)

Class 9 - Science Practice Sheet
(1 Mark Questions Answers)

Chapters Covered: Natural Resources, Atoms and Molecules, Plant Biodiversity, Work

Q1: Define the term biosphere?

Q2: List the two biotic components of biosphere?

Q3: Name the two gases given out on burning of fossil fuels which cause acid rain.

Q4: Which symbiotic life forms can grow on stones and help in formation of soil? Write the mode of their action for making soil from rocks.

Q5: How is smog formed?

Q6: Percentage of gases like O₂, N₂, and CO₂ remain almost same in the atmosphere. Give reasons for this.

Q7: State role of atmosphere in climate control.

CBSE Class 8/9 - Science - Rare Species of Animals Found in National Parks (#cbsenotes)(#eduvictors)

Rare Species of Animals
Found in National Parks

Wildlife of India is a great natural heritage. Efforts are being made to protect and  preserve biological diversity of our country under various programs. India has preserved vast tracts of natural habitats, birds and plants in its 551 Wildlife Sanctuaries, 96 National Parks, 25 Wetlands and 15 Biosphere Reserves spread almost in all the states of India.

The purpose of establishing national parks is “to conserve the natural and historic objects and the wild life and to provide for the enjoyment of the same in such manner and by such means as will leave them unimpaired for the enjoyment of future generations.”

CBSE Class 6 - 10 - Scientific Discoveries and Inventions Quiz (#sciencequiz)(#eduvictors)

Scientific Discoveries and Inventions Quiz

Q1: Who discovered the first antibiotic?

(a) W Fleming
(b) C Waksman
(c) Louis Pasteur
(d) A Fleming


Q2: Who invented the Safety razor?

(a) Gillette
(b) Nikola Tesla
(c) Steve Job
(d) Lar Strauss


Q3: X–rays were discovered by

(a) Edison
(b) Roentgen
(c) Marie Curie
(d) Van Lue

CBSE Class 9 - Science - Explore Science Quizzes To Assess Your Knowledge (#cbsenotes)(#eduvictors)

Class 9 Science:  Explore Science Quizzes To Assess Your Knowledge  

Try the MCQs based quizzes as listed below to help you assess your knowledge.

Chapter 1: Matter— Nature and Behaviour - Try Quiz
Quiz is based on CBSE syllabus covered including topics: Definition of matter; solid, liquid and gas; characteristics 7 shape, volume, density change of state, freezing, melting point etc.

Chapter 2: Is Matter Pure? - Try Quiz
Nature of matter: Elements, compounds and mixtures, Heterogeneous and homogenous mixtures, colloids and suspensions.

Chapter 3: Atoms and Molecules - Try Quiz
Atoms and molecules. Law of constant proportions, Atomic and molecular masses. Mole concept: Relationship of mole to mass of the particles and numbers.

Chapter 4: Structure Of Atom - Try Quiz
Electrons, protons and neutrons; Valency, chemical formula of common compounds, isotopes and isobars.

CBSE Class 9 - Physics - Gravitation and Flotation (Solved Numerical Problems) (#cbsenotes)(#eduvictors)

CBSE Class 9 - Physics -Gravitation and Flotation (Solved Numerical Problems)

Questions:

1) Find the total thrust acting on the bottom surface of a tank 4m long, 2m broad and 2m deep when fully filled with water. The density of water= 10³ kg/m³.

2) The gravitational force between two objects is 100N. How should the distance between the objects be changed so that force between them becomes 50N?

3) If the distance between two masses be increased by a factor of 6, by what factor would the mass of one of them have to be altered to maintain the same gravitational force? Would this be an increase or decrease in the mass?

4) The value of ‘g’ on earth’s surface is 9.8 m/s². Suppose the earth suddenly shrinks to one-third of its present size without losing any mass. What is the value of ‘g’ on the surface of shrunk earth?

5) Two bodies of mass 1kg and 100kg respectively are dropped simultaneously from same height 4.9m in a vacuum. Calculate and compare their final velocities just before hitting the ground and the time interval in which they will hit the ground.

6) The ratio of gravitational force on Neptune to the gravitational force on earth is 9:8. Ramesh weighs 792N on earth. Calculate his weight on Neptune.

Class 9 - Biology - Why do we fall ill? - Important Definitions (#cbsenotes)(#eduvictors)

Why do we fall ill? - Important Definitions

Health: 
A state of being well enough to function well physically, mentally and socially.

WHO defined health as ‘a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity’"

Disease:
Lack of feeling of ease or distress due to impairment of health or a condition of abnormal functioning or structural disorder.

Hygiene :
Condition and practices that help to maintain health and prevent the spread of diseases.


Symptoms:
A series of events occurring that often point to a disease or condition.

Signs:
Objective evidence of disease as identified by physicians or doctors.

CBSE Class 9 - Chemistry - Structure Of Atom (Worksheet) (#cbsenotes)(#eduvictors)

CBSE Class 9 - Chemistry
 - Structure Of Atom
(Worksheet)

An atom is the smallest indivisible unit of an element.. Modern chemistry began with eighteenth-century discoveries leading to the formulation of two basic laws of chemical combination, the law of conservation of mass and the law of constant composition (definite proportions). Later it led to the development of various atomic models and discoveries of sub-atomic particles. Here is a worksheet based on NCERT Chapter 4 to assess your knowledge about structure of atoms.

CBSE Class 9 - Science - Improvement in Food Resources - Study Notes (#cbsenotes)(#eduvictors)

Improvement in Food Resources 

Study Notes

Food is essential for all living organisms to live. We depend on plants and animals for food. The increase in population has created much demand for food. It is important that we should increase food production without degrading our environment and disturbing the balances maintaining it. Hence there is a need for sustainable practices in agriculture and animal husbandry.

Improvement in crop yields

Different crops require different climatic conditions, temperature and photoperiods for their growth and completion of their life cycle. There are some cops which are grown in rainy season, called the kharif crops which extend from June to October. Kharif crops include paddy, soyabean, maize, cotton, green gram and black gram. Rabi crops are grown in the winter season which extends from November to April. Rabi crops include wheat, gram, peas and linseed. The major groups of activities for improving crop yields can be classified as – 

- crop variety improvement, 

- crop production improvement and 

- crop protection management.