CBSE Class 9 - Chemistry - Matter in Our Surroundings - 1 Mark Questions and Answers (#class9Chemistry)(#class9Science)(#eduvictors)

CBSE Class 9 - Chemistry - Matter in Our Surroundings - 1 Mark Questions and Answers 

Q1: What are the conditions for 'something' to be called 'matter'?

Answer: The main conditions for something to be matter are, it should:

(a) occupy space and

(b) have mass

Q2:  Name the state of matter in which particles just move around randomly because of the very weak force of attraction.

Answer: Gaseous state

Q3: Name two processes that provide the best evidence for the motion of particles in matter.

Answer: Diffusion and Brownian motion provide the best evidence about the random motion of particles in matter.

CBSE Class 9 - Chemistry - Chapter: Atoms and Molecules (Important Definitions) (#class9Chemistry)(#cbsenotes)(#eduvictors)(#class9Science)

Chapter: Atoms and Molecules (Important Definitions)

CBSE Class 9 - Chemistry

1. Law of Conservation of Mass: 

Mass can neither be created nor can it be destroyed in a chemical reaction. In a chemical reaction,

   Total mass of reactants = Total mass of products

2. Law of Constant Proportions: 

In a pure substance same elements are always present in a definite proportion by weight.

3. Atom: 

Smallest unit of an element, which may or may not exist independently, but always takes part in a chemical reaction.

Class 9 Science Annual Sample Question Paper (Set-1) 2020-21 (#class9Papers)(#eduvictors)(#cbsepapers)

Class 9 Science Annual Sample Question Paper  (Set-1) 2020-21

Learning is a continual process. To improve scores, the best way is to learn and practice. Solving question papers help students to evaluate their knowledge and familarise with different types of question patterns being asked in examination. 

Eduvictors provides CBSE Previous Year Papers and Sample Question Papers for Class 9 Maths, Science, Social, English, Hindi and Sanskrit with/without solutions to help students in their board exam preparation.

1. CBSE New Pattern 15 Sample Paper Science Class 9 for 2021 Exam with reduced Syllabus

2. Oswaal CBSE Sample Question Paper Class 9 Science Book (Reduced Syllabus for 2021 Exam) 

Here attached the Science Sample Question Paper (2020-2021).

Class 9 - Biology - Why Do We Fall ill? (Worksheet-2)(#class9Biology)(#eduvictors)(#cbse2020)

 Class 9 - Biology - Why Do We Fall ill? (Worksheet-2)

Fill in the blanks with suitable words.

1. ________ is a state of complete physical, mental and social well-being and not merely an absence of disease or infirmity.

2. A ________ is any physical or functional change from the normal state that causes discomfort, disability or impairs the health of a person.

3. Diseases may be classified as infectious and non-infectious depending upon their causes, or as _______ and _______ depending upon their duration.

Class 9 - Chemistry - Atoms and Molecules - Atomicity of Elements (Worksheet)#class9Chemistry #eduvictors #cbse2020

Class 9 - Chemistry - Atoms and Molecules - Atomicity of Elements (Worksheet)

Molecules of an element are formed by the atoms of the same type. Molecules of some elements contain only one atom and molecules of some elements contain two or more atoms. The number of atoms constituting a molecule is known as its atomicity.

Gravitation 1 - Mark Questions (Solved) CBSE Class 9 - Physics (#class9Physics)(#Gravitation)(#eduvictors)

Gravitation 1 - Mark Questions (Solved) CBSE Class 9 - Physics

Q1: Who formulated the universal law of Gravitation?

Answer: Isaac Newton

Q2: What is free fall?

Answer: When an object falls from any height under the influence of gravitational force only, it is known as free fall.

Q3: What is the value of gravitational constant G on the earth? Does the value G changes on the moon?

Answer: Value of gravitational constant on the earth is 6.67×10⁻¹¹ Nm²/kg². Value of G does not change (universal constant), it remains the same on moon.

Q4: What will happen to gravitation force between two bodies, if mass of one body is doubled?

Answer: Gravitational force will double also.

CBSE Class 9 - Biology - Animal Tissues (MCQs)(#class9Biology)(#eduvictors)(#animaltissues)

Animal Tissues (MCQs)

CBSE Class 9 - Biology

Read the question carefully and choose the correct option from the choices given.

Q1: The tissue responsible for movement in our body is

      (A) connective tissue 

      (B) nervous tissue 

      (C) muscular tissue 

      (D) epithelial tissue

Q2: Neuron receives and transmits information and messages in the form of

      (A) nerve beats 

      (B) muscular impulses

      (C) nerve impulses 

      (D) nerve processes

CBSE Class 9 - Biology - Plant Tissues (MCQs) (#eduvictors)(#class9biology)(#plantTissues)

CBSE Class 9 - Biology - Plant Tissues (MCQs)

Multiple Choice Questions (MCQs)

Q1: Which of the following has the ability to divide ?

 (a) Xylem

 (b) Phloem

 (c) Meristematic Tissues

 (d) Permanent Tissues

Q2: The growth is plants is

(a) limited to certain regions

(b) uniform in all parts

(c) limited to top region

(d) limited to roots only.

CBSE Class 9 - Biology - Cell - Fundamental Unit Of Life - 1 Marker Questions (#class9Biology)(#eduvictors)

CBSE Class 9 - Biology - Cell - Fundamental Unit Of Life - 1 Marker Questions

Animal Cell (Image Credits: AJC1, Flickr)

Q1. Name the cell organelle which is commonly called ‘suicidal bag’ of the cell.

Q2. Which cell organelle are termed the ‘powerhouses’ or ‘storage batteries’ of the cell?

Q3. Name cell organelles having double-membrane envelope.

Q4. Name the organelle which is associated with protein synthesis.

Q5. Which organelle of plant cell has chlorophyll pigments in it?

Q6. Who proposed the fluid mosaic model of the structure of the plasma membrane?

Q7. Who coined the term ‘cell’ and in which year?

Q8. Name the scientists who proposed ‘cell theory’.

What is Kinetic Theory of Matter? - CBSE Class 9 - Chemistry - Matter In Surroundings (#eduvictors) (#cbseClass9Science)

What is Kinetic Theory of Matter?

CBSE Class 9 - Chemistry - Matter In Surroundings 

What is Kinetic Theory of Matter? 

The Kinetic Theory of Matter states that matter is composed of a large number of small particles —individual atoms or molecules — that are in constant motion. This theory is also called the Kinetic-Molecular Theory of Matter and the Kinetic Theory of Gases.


The main postulates of kinetic Theory of matter are following:

CBSE Class 9 - Physics - Chapter Motion - Short Questions and Answers - Part-1 (#eduvictors)(#cbse)(#cbseclass9)

Chapter Motion: Class 9 - Physics - Short Questions and Answers - Part-1

Q1:  An object has moved through a distance. Can it have zero displacement ? If yes, support your answer with an example.

Answer: Yes, even if an object has moved through a distance, it can have zero displacement. For example an object after  moving through a certain distance (say d), comes back to its starting position. In that case, distance covered is 2d while displacement is zero.


Q2: Is displacement a scalar quantity?

Answer: No, displacement is a vector quantity because it has magnitude as well as direction.


Q3:  State whether distance is a scalar or a vector quantity.

Answer: Distance is a scalar quantity; it has magnitude but no specific direction.

CBSE Class 9 - Science Annual Sample Question Paper (Set-2) (2019-20)(#eduvictors)(#cbsepapers)

CBSE Class 9 - Science
 Annual Sample Question Paper (Set-2)
 (2019-20) 

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 to assess your knowledge about the subject. These Sample question papers will assist the students to self-compare their progress in social science topics and prepare for the exams based filling the gaps.

For studying you may refer following help guides:

1. 15 Sample Question Paper Science Class 9th CBSE 2019-2020
2. All In One Science CBSE class 9 2019-20

CBSE Class 9 - Science Annual Sample Question Paper - Set -1 (2019-20)(#cbsepapers)(#eduvictors)

CBSE Class 9 - Science
 Annual Sample Question Paper
 (2019-20) 

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 to assess your knowledge about the subject. These Sample question papers will assist the students to self-compare their progress in social science topics and prepare for the exams based filling the gaps.

For studying you may refer following help guides:

1. 15 Sample Question Paper Science Class 9th CBSE 2019-2020
2. All In One Science CBSE class 9 2019-20

CBSE Class 9 - Biology - Why Do We Fall Ill? - Worksheet (#class9Biology)(#eduvictors)

Class 9 - Biology - Why Do We Fall Ill?

Worksheet 

Fill in the banks with suitable word(s)

1. Pathogens causing diseases like common cold, influenza, dengue fever, AIDS are ________.

2. Pathogens causing diseases like typhoid, cholera, antrax, tuberculosis are _________.

3. Pathogens causing diseases like skin infections are __________.

4. Pathogens causing diseases like malaria, kala-azar are _________.

CBSE Class 9 - Biology - Diversity In Living Organisms (Very Short Answer Based Questions) (#CBSEclass9Biology)(#eduvictors)

Diversity In Living Organisms (Very Short Answer Based Questions)CBSE Class 9 - Biology

Q1: Who introduced the system of scientific nomenclature of organisms?

Q2: In which Kingdom, an organism does not have a well defined nucleus and organelles?

Q3: In the hierarchy of classification, which group will have the largest number of organisms?

Q4: Which in your opinion is more basic characteristic for classifying organism. The place where they live in or the kind of cells they are made of?

Q5: Give examples of the organisms that have cilia and flagellum for moving around.

Q6: In the hierarchy of classification, which group will have the smallest number of organisms and a maximum number of similar characteristics?

Q7: Name the substance which makes the cell wall of fungi.

Q8: Name a symbiotic life form that grows on the bark of a tree as large, coloured patches.

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.