Showing posts with label class9-science. Show all posts
Showing posts with label class9-science. Show all posts

Wednesday, 13 May 2020

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

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

Monday, 6 April 2020

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?  - CBSE Class 9 - Chemistry - Matter In Surroundings (#eduvictors) (#cbseClass9Science)


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:

Saturday, 28 March 2020

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.


Monday, 24 February 2020

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) 

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

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

Tuesday, 18 February 2020

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

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

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

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

Sunday, 5 January 2020

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

Class 9 - Biology - Why Do We Fall Ill?

Worksheet 

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



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 _________.

Saturday, 21 December 2019

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

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

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.

Thursday, 29 August 2019

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:

Monday, 29 April 2019

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

Amazing Human Body - Quick Facts 

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

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.

Wednesday, 24 April 2019

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

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

Sunday, 21 April 2019

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

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

Tuesday, 2 April 2019

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

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:

Tuesday, 26 February 2019

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)

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

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:

Friday, 1 February 2019

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

Chemistry - Atoms and Molecules 

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


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

Thursday, 24 January 2019

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

Diversity in Living Organisms (Worksheet-2)

Classification

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

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.

Monday, 31 December 2018

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

Class 9 - Physics 

Work, Power and Energy 

Worksheet

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


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.


Monday, 17 December 2018

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

Diversity in Living Organisms (Worksheet)

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

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.


Wednesday, 12 December 2018

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

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

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.