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Class 8 Formula Sheet​ PDF (Free Download)

To practise questions that require you to have a proper understanding of formulas, you can use the class 8 formula sheet PDF available here at Selfstudys.

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The formula sheet has been developed by subject experts with years of teaching experience. With the help of class 8 formula sheet PDF, you can also revise and recall the concepts studied in the subjects — Maths and Science.

Before you click the CBSE class 8 formula PDF download links, ensure you have gone through the topics because without understanding them you will struggle with comprehending the CBSE class 8 formulas.

Salient Features of Class 8 Important Formulas Sheet​​ PDF

Get familiar with the key features of class 8 formula sheet PDF so that you can better utilise them for your learning and problem solving.

  • It’s available for free to download in PDF. Meaning you can access the class 8 formula 24/7 to recall and practice questions.
  • The Class 8 formula sheet PDFs provided here are organised subject-wise and chapter-wise.
  • The information or details mentioned in the formula sheet PDF are organised and in a crystal clear manner, helping you easily find the formula you are required.
  • CBSE Class 8 syllabus has been followed to curate the Maths and Science formulas to help you find the appropriate formulas to solve the questions.

Subject-Wise Class 8 Formula Sheet​ PDF

Only Science and Mathematics require you to learn and memorise the formula in class 8, so that you can answer the calculation-based questions. With the help of subject-wise class 8 formula sheet PDF, you solve questions much faster and easily. Learn more about the class 8 important formulas sheet​​ below.

Sr.No Subject Wise Formula
1 Matshs Class 8th formula Sheet
3 Science Class 8th formula Sheet

Class 8 Maths Formula Sheet

The class 8 Maths formula sheet PDF facilitates you to access the chapterwise formulas — Rational Numbers to Introduction to Graphs. You get access to all the formulas separately in a PDF file. For a glimpse, find the class 8 Maths formulas for all the chapters from the below table.

Class 8 Maths Important Formulas

Note that the table contains part of the formulas, to access all the formulas refer to the class 8 formula PDF download link.

Maths Important Formulas
Chapter Class 8 Maths Important Formulas

Rational Numbers

1.class 8 formula​

2.class 8 formula sheet​

3.CBSE class 8 formula sheet

4.CBSE class 8 formula sheet​ PDF

Linear Equations in One Variable

ax + b = c ⇒ x = c-b/a

Understanding Quadrilaterals

  1. Sum of interior angles = 180∘ ×(n−2)
  2. Sum of exterior angles = 360∘

Practical Geometry

Focus on construction techniques because there are no direct formulas.

Data Handling

  1. Mean = Sum of observations / Total number of observations
  2. Probability = Favorable outcomes / Total outcomes

Square and Square Roots

  1. class 8 formula​
  2. class 8 formula sheet​
  3. Square root of a fraction:
  4. CBSE class 8 formula sheet​

Cube and Cube Roots

  1. CBSE class 8 formula sheet​ PDF
  2. CBSE class 8 formula PDF Download

Comparing Quantities

  1. Percentage = class 8 formula​
  2. Simple Interest = class 8 formula sheet​
  3. Compound Interest = CBSE class 8 formula sheet​

Algebraic Expressions and Identities

  • (a+b)2 = a2 + 2ab + b2
  • (a-b)2 = a2 − 2ab + b2
  • a2 - b2 = (a−b)(a+b)

Visualising Solid Shapes

No direct formulas. You are required to focus on properties of 3D shapes.

Mensuration

  1. Area of rectangle = 𝑙×𝑏
  2. Area of circle = πr2
  3. Surface Area of Sphere = 4πr2
  4. Volume of Cylinder = πr2h

Exponents and Powers

  1. class 8 formula​
  2. class 8 formula sheet​
  3. CBSE class 8 formula sheet​

Direct and Inverse Proportion

  1. Direct Proportion: 𝑥1 : 𝑥2 = 𝑦1 : 𝑦2
  2. Inverse Proportion: x1 × y1 = x2 ​× y2

Factorisation

  • a2 - b2 = (a−b) (a+b)
  • ax+ay= a(x+y)

Introduction to Graphs

No direct formulas. Focus on plotting points and graph interpretation.

Playing with Numbers

  • Divisibility rules
  • General form of a number: 100𝑎 + 10𝑏 + 𝑐

Class 8 Science Formula Sheet

Generally, in class 8 you don’t have much numerical to solve, but there are certain formulas you are required to memorise such as HCL for hydrochloric acid, CO2 , CH4 , etc, in the class 8 Science chapter Pollution of air and water. 

Our PDF for class 8 Science formula is designed in a way that enables you to revise the whole chapter from the formula perspective, where you learn about crucial terms. In addition to this, there are short notes that assist you to recall the concepts and topics faster — eventually helping you master the class 8 science from the theory and concept basis. 

Class 8 Science Important Formulas

Refer to the below table because it covers all the essential chemical equations, physics concepts, and key reactions for Class 8 Science.

Science Important Formulas
Chapter

Class 8 Science Important Formulas & Chemical Equations

Acids, Bases, and Salts

  1. Hydrochloric AcidHCl
  2. Sulfuric AcidH2SO4
  3. Nitric AcidHNO3
  4. Sodium HydroxideNaOH
  5. Neutralization Reaction → Acid+Base→Salt+Water

Carbon and Its Compounds

  • Methane → CH4
  • Ethane → C2H6
  • Ethanol (Alcohol) → C2H5OH
  • Carbon Dioxide Formation → C+O2→CO2

Cell (Structure and Functions)

  1. Glucose Formula → C6H12O6
  2. Photosynthesis Reaction → 6CO2 + 6H2O → (Sunlight) C6H12O6 + 6O2

Force

  1. Force = Mass × Acceleration → F=ma
  2. Momentum → p = mv

Friction

Frictional Force Formula → F = μN (where 𝜇 is the coefficient of friction, and N is the normal force)

Light

Mirror Formula →CBSE class 8 formula sheet​ PDF

Lens Formula →CBSE class 8 formula PDF Download

Magnification → CBSE class 8 Important formulas sheet​​

Metals and Non-Metals

  1. Rusting of Iron →4Fe + 3O2 + 6H2O → 4Fe(OH)3

Reaction of Metals with Acid → Metal + HCl + Salt + H2

Microorganisms

No formulas, but Fermentation reaction is: Glucose to Alcohol → C6H12O6 → (Yeast) 2C2H5OH + 2CO2

Nervous System

No chemical formulas, but nerve impulse transmission involves sodium ions (Na⁺) and potassium ions (K⁺).

Pollution of Air and Water

  1. Sulfur Dioxide → SO2
  2. Carbon Monoxide → CO
  3. Acid Rain → SO2 + H2O → H2SO4

Reproduction in Animals

No direct formulas.

Reproduction in Plants

Photosynthesis6CO2 + 6H2O → (Sunlight) C6H12O6 + 6O2

Some Natural Phenomena

Electric Charge (Coulomb's Law) →class 8 formula​

Sound

  1. Speed of Sound Formula → 𝑣 = 𝑓𝜆
  2. Echo Time Formula → d = vt/2

Synthetic Fibres & Plastics

  • Polyethene (Plastic) Formula → (C2H4)n
  • Teflon Formula → (C2F4)n

How to Access the Sheet for Class 8 Formula from SelfStudys?

Below is the process that you need to complete for accessing our sheet of the class 8 formula​. 

  • You can reach our website by simply typing www.selfstudys.com in the search field of any web browser. 

class 8 formula​ 

  • On the homepage, your first click should be on the ‘Navigation’ bar. 
  • With this click, you can access our main menu and select the ‘CBSE’ section. 

class 8 formula sheet 

  • This section will display various study resources and you have to tap on the ‘Formula Class Wise’ option. 

CBSE class 8 formula sheet​ 

  • Within a few seconds, you will be directed to a new page that includes all the classes for these formula sheets. Here, you can click on the ‘Class 8’ icon. 

CBSE class 8 formula sheet​ PDF 

  • Now, you can go through the subjects for which we have the class 8 formula sheet​ and choose any. 
  • All the chapters for the class 8 formula sheet​ under your chosen subject will appear on the screen. 
  • You can either start studying the class 8 formula sheet​ PDF one by one from the list of chapters or select the one you want to focus on more. 
  • You can also save any class 8 formula PDF download on your device for later study. 

Note: We highly recommend that you Log In or Sign Up with your Google account in advance on SelfStudys to download the class 8 important formulas sheet​​. 

Key Benefits of Class 8 Formula Sheet

Here are the key benefits of using class 8 formula sheet PDF.

CBSE class 8 formula PDF Download 

  1. Quick Revision: The PDF contains a concise summary of all important formulas in one place. This helps save time during exam preparation by eliminating the need of reading the NCERT Class 8 textbooks thoroughly.
  1. Reduces Memorisation Stress: The class 8 formula sheet PDF is prepared in a manner that helps you focus on understanding concepts rather than rote memorisation. Additionally, using the formula sheet regularly builds a natural flow to easily recall the formula regardless of its difficulty.
  1. Improves Problem-Solving Speed: The class 8 formula sheet in PDF enables you to access the formulas at your fingertips. This facility assists you solve CBSE important questions faster and with less error whether it is calculation or formula implementation. Doing exercises using the formula sheet helps bimportantfidence that aids you in the final examination. It also reduces your time spent on recalling the formulas.
  1. Strengthens Conceptual Understanding: A collection of formulas grouped together helps you recognise patterns and relationships between different topics. It enables you to use the formulas in problem-solving appropriately.
  1. Helpful for Competitive Exams: The formula PDF of Class 8 aids in preparing for competitive exams such as Olympiads, NTSE, and entrance exams that include Class 8-level questions. It also builds a strong foundation for higher classes, such as Class 9 and 10.
  1. Useful for Homework & Assignments: The Class 8 formula sheet PDF reduces the dependency on multiple study resources — textbooks and revision notes. And acts as a handy reference study tool while solving questions and completing assignments.

Tips to Score Full Marks in Class 8

With smart study techniques, consistent practice, and a strategic approach to exams, you can score full marks in class 8. Here are some useful tips to help you achieve get full marks:

  1. Instead of memorizing, focus on understanding concepts.
  2. Prepare an effective study plan — Divide subjects into manageable topics, allocate specific time slots for each subject and add revision and practice sessions in your timetable.
  3. A Class 8 formula sheet PDF can be a game-changer in scoring full marks. Here’s how: instead of going through the entire textbooks, you get all the formulas in one place. A well-organized formula sheet acts as a confidence booster before exams because it reduces your stress during the revision process.
  4. Present answers in a well-structured manner, underline key points and use bullet points where necessary. For Science, draw neat diagrams and label them properly.
  5. Study daily instead of leaving everything for the last moment. During the daily study, try to revise formulas and key concepts, and keep in mind to take breaks to avoid burnout. Don’t be hard on yourself, just enjoy the process and make the preparation effortless. It will surely do the magic for you.

Conclusion

Strengthen your conceptual understanding and problem-solving skills in Mathematics and Science using the Class 8 formula sheet PDF. It is an important study material that you should use regularly to get access to a well-structured and chapter-wise important formula for both Maths and Science. The Class 8 formula PDF works as an excellent revision tool which boosts your revision speed and improves your accuracy in calculations. You can take help from this study material anytime, whether you are preparing for exams, competitive tests, or daily homework. To refer to the PDF file, download the Class 8 Formula Sheet PDF using the links available here at Selfstudys.com.

FAQs
Need answers? Find them here...
The best usage of the class 8 formula sheet​ can be done as a reference tool while you are studying or revising the topics. You may open the PDF on your device or print out. During your revision time, you can refer to this sheet and refresh your memory on various formulas related to subjects like Science, Maths, etc.
Absolutely, you can easily make your own CBSE class 8 important formulas sheet​​. You just need to focus on the formulas that are frequently used or the ones that you find most difficult to remember. Also, you can organize the sheet as per different subjects or topics and compile them to learn while studying.
With the help of a well-organized CBSE class 8 formula PDF download, you can make your revision sessions much more effective. This will happen because the PDF contains all the important formulas in one place, which ultimately saves your time and effort. You don’t have to search through textbooks to find specific formulas as you can get them in a single file.
Of course, with the sheet of class 8 formula​, you will be able to improve your exam performance significantly. By revising all the essential formulas before the exam, you can make sure to not miss any important details while solving the problems. This method will also boost your confidence and reduce any exam-anxiety.
Our subject-matter experts suggest that it is a good idea to refer to the CBSE class 8 formula sheet​ on a regular basis while you are studying. When you are memorizing the formulas initially, you should use the sheet for accuracy. Then, once you become familiar with the formulas, you should apply them from your memory during problem-solving.
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