Showing posts with label class10-science. Show all posts
Showing posts with label class10-science. Show all posts

Thursday, 16 June 2022

CBSE Class 10 - Science Syllabus (2022-23) - Chapters Deleted or Reduced #Class10Science #cbseSyllabus2022-23 #eduvictors

 CBSE Class 10 - Science Syllabus (2022-23) - Chapters Deleted or Reduced  

CBSE Class 10 - Science Syllabus (2022-23) - Chapters Deleted or Reduced   #Class10Science #cbseSyllabus2022-23 #eduvictors


CBSE Syllabus for Academic Year 2022-23 is available here.

CH-1: Chemical Reactions and Equations

Deleted- Corrosion and Rancidity (Pg-13)


CH-2: Acids, Bases and Salts

No Reduction

Sunday, 8 May 2022

Class 10 Biology - Reproduction - Important Differences (You Should Know) #class10Science #eduvictors

Biology - Reproduction - Important Differences

Class 10 Biology - Reproduction - Important Differences (You Should Know)  #class10Science #eduvictors


Here is a list of important differences related to the Asexual mode and the Sexual Mode of reproduction, commonly asked in examinations.

 

Binary Fission vs Multiple Fission

Tuesday, 3 May 2022

CLASS IX-X: DELETED CHAPTERS IN MATHS AND SCIENCE IN SYLLABUS (2022-23)

CLASS IX-X: DELETED CHAPTERS IN MATHS AND SCIENCE IN SYLLABUS (2022-23) 

CLASS IX-X: DELETED CHAPTERS IN MATHS AND SCIENCE IN SYLLABUS (2022-23)



Please note the Board will conduct the annual scheme of assessment at the end of the Academic Session 2022-23

Class 9 Science

Deleted Chapters:

- DIVERSITY IN LIVING ORGANISMS

- NATURAL RESOURCES

- WHY DO WE FALL ILL?


Chapter: NATURAL RESOURCES will be taught in the class and  students are encouraged to prepare a brief write up on any concept of this chapter in their Portfolio (internal assessment)

Monday, 28 March 2022

Class 10 Biology - Heredity (Worksheet) #heredity #class10Biology #eduvictors #worksheets

Class 10 Biology - Heredity (Worksheet)

Class 10 Biology - Heredity (Worksheet) #heredity #class10Biology #eduvictors #worksheets


Fill in the blanks with suitable word(s).


1. The generation resulting immediately from a cross of the first set of parents is called ____________.


2. All cells forming the body of an organism, except the reproductive cells are called _________ cells.


3. A type of crossing in which only one pair of contrasting characters is considered is called _________ cross.

Sunday, 6 March 2022

CBSE Class 10 Science - Term 2 - Sample Question Paper (2021-22) #cbseTerm2 #cbsepapers #class10Science #eduvictors

CBSE Class 10 Science - Term 2 - Sample Question Paper (2021-22) 




Maximum Marks: 50 (40 Theory Paper + 10 Marks Internal Assessment)

Duration: 2 Hours

Weightage Per Paper:

Physics: 12 Marks

Chemistry: 10 Marks

Biology: 18 Marks 

Saturday, 22 January 2022

CBSE Class 10 Chemistry - Carbon and Its Compounds - Very Short Answer Based Questions on Allotropes (Part -2) #class10Chemistry #cbseTerm2 #eduvictors #carbonallotropes

CBSE Class 10 Chemistry - Carbon and Its Compounds - Very Short Answer Based Questions on Allotropes (Part -2)

CBSE Class 10 Chemistry - Carbon and Its Compounds - Very Short Answer Based Questions on Allotropes (Part -2) #class10Chemistry #cbseTerm2 #eduvictors #carbonallotropes

Q1: What is the atomic number of a carbon atom?

Answer: 6


Q2: How many valence electrons are present in a carbon atom?

Answer: 4 (electronic configuration is K:2 L:4)


Q3: What are allotropes?

Answer: The property due to which one element exists in more than one form, which differs in physical properties but has similar chemical properties. These forms of an element are called allotropes.

Thursday, 28 October 2021

CBSE Class 10 - Physics - Light - Reflection and Refraction (MCQs)#eduvictors #class10Physics #cbseterm1

CBSE Class 10 - Physics - Light - Reflection and Refraction (MCQs)

CBSE Class 10 - Physics - Light - Reflection and Refraction (MCQs)#eduvictors #class10Physics #cbseterm1


Q1: The laws of reflection hold true for:

(a) plane mirrors only

(b) concave mirrors only

(c) convex mirrors only

(d) all reflecting surfaces



Q2: Focal length of a plane mirror is 

(a) zero

(b) infinite

(c) 25 cm

(d) -25 cm

Saturday, 9 October 2021

Tuesday, 7 September 2021

Class 10 Chemistry - Acid, Bases and Salts (Worksheet) (#class10Chemistry)(#cbse2021)(#cbseTerm1)(#eduvictors)(#class10WorkSheet)

Class 10 Chemistry - Acid, Bases and Salts (Worksheet)

Class 10 Chemistry - Acid, Bases and Salts (Worksheet) (#class10Chemistry)(#cbse2021)(#cbseTerm1)(#eduvictors)(#class10WorkSheet)


Fill in the blanks with suitable words


1. An acid is a compound which when dissolved in water gives _________ ions as the only _________ ions.


2. Higher the pH value of a solution, the more __________ it is.


3. pH value of lemon juice is _________ than 7.

Saturday, 5 June 2021

Chemistry - Colours Of Compounds For CBSE Class 12, 11, 10 and 9 (#class12Chemistry)(#class11Chemistry)(#ntse)(#neet)(#eduvictors)

 Chemistry - Colours Of Compounds For CBSE Class 12, 11, 10 and 9 

Chemistry - Colours Of Compounds For CBSE Class 12, 11, 10 and 9  (#class12Chemistry)(#class11Chemistry)(#ntse)(#neet)(#eduvictors)



Salts/Compounds     Colour

1. Potassium dichromate, K₂Cr₂O₇ Orange

2. Potassium permanganate, KMnO₄ Violet

3. Ferric tetra-oxide, Fe₃O₄ Black

4. Ferrous sulphate, FeSO₄.7H₂O Green

5. Ferric sulphate, Fe₂(SO₄)₃ Yellow

6. Ferric hydroxide, Fe(OH)₂ Green

Saturday, 1 May 2021

CBSE Class 10 Physics - Electricity (1 Mark Based Questions and Answers) Part-1 (#class10Science)(#class10Physics)(#eduvictors)(#cbse2021)

CBSE Class 10 Physics - Electricity (1 Mark Based Questions and Answers) Part-1

CBSE Class 10 Physics - Electricity (1 Mark Based Questions and Answers) Part-1 (#class10Science)(#class10Physics)(#eduvictors)(#cbse2021)


Q1: By what other name is the unit joule/coulomb called ?

Answer: Volt


Q2: Which of the following statements correctly defines a volt ? 

(a) a volt is a joule per ampere.

(b) a volt is a joule per coulomb.


Answer: (b) a volt is a joule per coulomb.


Q3: (a) What do the letters p.d. stand for ?

    (b) Which device is used to measure p.d. ? 


Answer:

(a) p.d. stands for potential difference.

(b) Voltmeter is used to measure p.d.

Thursday, 29 April 2021

CBSE Class 10 Biology - Questions and Answers Related to Activity To Show Chlorophyll is Necessary For Photosynthesis (#class10Biology)(#class10Science)(#eduvictors)

CBSE Class 10 Biology - Questions and Answers Related to Activity To Show Chlorophyll is Necessary For Photosynthesis

Chapter: Life Processes (NCERT Book Activity 6.1)

CBSE Class 10 Biology - Questions and Answers Related to Activity To Show Chlorophyll is Necessary For Photosynthesis (#class10Biology)(#class10Science)(#eduvictors)


Activity Steps

Step 1: Take a potted plant with variegated leaves – for example, a money plant or croton.

Step 2: Keep the plant in a dark room for three days so that all the starch gets used up.

Step 3: Now keep the plant in sunlight for about six hours.

Step 4: Pluck a leaf from the plant. Mark the green areas in it and trace them on a sheet of paper.

Step 5:  Dip the leaf in boiling water for a few minutes.

Step 6:  After this, immerse it in a beaker containing alcohol.

Step 7: Carefully place the above beaker in a water bath and heat till the alcohol begins to boil.

What happens to the colour of the leaf? What is the colour of the solution?

Step 8: Now dip the leaf in a dilute solution of iodine for a few minutes.

Take out the leaf and rinse off the iodine solution.

Observe the colour of the leaf and compare this with the tracing of the leaf done in the beginning.

What can you conclude about the presence of starch in various areas of the leaf?

Wednesday, 7 April 2021

CBSE Class 10 - Chemistry - Periodic Classification Of Elements (Very Short Answer Based Questions)(#class10Chemistry)(#cbsenotes)(#eduvictors)

Class 10 - Chemistry - Periodic Classification Of Elements (Very Short Answer Based Questions)

CBSE Class 10 - Chemistry - Periodic Classification Of Elements (Very Short Answer Based Questions)(#class10Chemistry)(#cbsenotes)(#eduvictors)


Q1: What is the basis of classification of elements in the modern periodic table?

Answer: Atomic number


Q2: The Law of Octaves was applicable only upto which element?


Answer: Calcium


Q3: Which important property did Mendleev use to classify the elements in the periodic Table?

Answer: He used atomic masses of elements in classifying elements.


Wednesday, 24 March 2021

Class 10 Science Preboard Sample Question Paper (Set-4) 2020-21(#cbsepapers)(#class10Science)(#eduvictors)

Class 10 Science Preboard Sample Question Paper  (Set-4) 2020-21

Class 10 Science Preboard Sample Question Paper  (Set-4) 2020-21(#cbsepapers)(#class10Science)(#eduvictors)


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 Class 10 Maths, Science, Social, English, Hindi and Sanskrit with/without solutions to help students in their board exam preparation.

1. Buy Most Likely Question Bank - Science: CBSE Class 10 for 2021 Examination



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

Monday, 15 March 2021

CBSE Class 10 - Chemistry - Acids, Bases and Salts - Assertion Reason Based Questions(#class10Chemistry)(#Class10Science)(#eduvictors)

CBSE Class 10 - Chemistry - Acids, Bases and Salts - Assertion Reason Based Questions

CBSE Class 10 - Chemistry - Acids, Bases and Salts - Assertion Reason Based Questions(#class10Chemistry)(#Class10Science)(#eduvictors)


Assertion and Reasoning based questions are a bit tricky. You should be able to distinguish whether the assertion is well connected to the reason or these are just random facts. Read both statements carefully, and check if both statements are factually or logically correct or not. If both are correct, then try to check if both are well connected to each other or not.

The questions below consist of statements of an Assertion and a Reason. Use the following key to choose an appropriate answer:


(a) Both A and R are true and R is the correct explanation of A.

(b) Both A and R are true but R is not the correct explanation of A.

(c) A is true but R is false.

(d) A is false but R is true.


Q1: Assertion (A) : Acids are those substances which turn blue litmus solution red.
       Reason (R)    : Acids give more OH⁻ ions in aqueous solution.

Thursday, 25 February 2021

Class 10 Science Preboard Sample Question Paper (Set-3) 2020-21 (#class10Science)(#eduvictors)(#cbsepapers)

Class 10 Science Preboard Sample Question Paper  (Set-3) 2020-21

Class 10 Science Preboard Sample Question Paper  2020-21 (#class10Science)(#cbsepapers)(#eduvictors)


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 Class 10 Maths, Science, Social, English, Hindi and Sanskrit with/without solutions to help students in their board exam preparation.

1. Buy Most Likely Question Bank - Science: CBSE Class 10 for 2021 Examination



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

Wednesday, 24 February 2021

Class 10 Science Preboard Sample Question Paper 2020-21 (#class10Science)(#cbsepapers)(#eduvictors)

Class 10 Science Preboard Sample Question Paper  2020-21

Class 10 Science Preboard Sample Question Paper  2020-21 (#class10Science)(#cbsepapers)(#eduvictors)


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 Class 10 Maths, Science, Social, English, Hindi and Sanskrit with/without solutions to help students in their board exam preparation.

1. Buy Most Likely Question Bank - Science: CBSE Class 10 for 2021 Examination



Here attached the Science Sample Question Paper (2020-2021) published by Dir. of Education (Delhi).

Monday, 22 February 2021

CBSE Class 10 - Chemistry - Acids, Bases and Salts - About Indicators (Q & A) Part-1 (#eduvictors)(#class10Chemistry)(#class10Science)

CBSE Class 10 - Chemistry - Acids, Bases and Salts (Q & A) Part-1

CBSE Class 10 - Chemistry - Acids, Bases and Salts (Q & A) Part-1 (#eduvictors)(#class10Chemistry)(#class10Science)

Based on chemical properties, all compounds can be classified as acids, bases and salts. To identify acids and bases, indicators are used. This video talks about types of indicators i.e. natural, synthetic and olfactory. Examples of indicators and related questions are also covered.


Here follows the video:

Sunday, 17 January 2021

CBSE Class 10 - Chemistry - Chemical Reactions and Equations (Q & A) Part-4 (#class10Chemistry)(#eduvictors)(#cbse2020)

CBSE Class 10 - Chemistry - Chemical Reactions and Equations (Q & A) Part-4

CBSE Class 10 - Chemistry - Chemical Reactions and Equations (Q & A) Part-4 (#class10Chemistry)(#eduvictors)(#cbse2020)

The first chapter of Chemistry talks about chemical reactions and equations. In a chemical reaction, reactants are transformed into products. In this series, the part-4 video discusses:

- corrosion

- examples of corrosion (good vs bad)

- methods to prevent corrosion

- rancidity

- methods to prevent rancidity

Tuesday, 12 January 2021

Class 10 Chemistry Sample Question Paper 2020-21 (#class10Chemistry)(#cbse2020)(#eduvictors)

  Class 10 Chemistry Sample Question Paper 2020-21

Class 10 Chemistry Sample Question Paper 2020-21 (#class10Chemistry)(#cbse2020)(#eduvictors)


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 the examination.

Eduvictors provides CBSE Previous Year Papers and Sample Question Papers for Class 10 Maths, Science, Social, English, Hindi and Sanskrit with/without solutions to help students in their board exam preparation.

1. Buy CBSE All In One Science Class 10 for 2021 Exam 


Here attached the Chemistry Sample Question Paper (2020-2021) for your self-evaluation.