Class 10 CBSE Term 1 Complete Revision Guide 2025 📚

📚 Complete Term 1 Revision Guide

Subjects Covered

25+

Chapters Revised

100+

Memory Tricks

🎯 How to Use This Guide

This is NOT just another set of notes!

This is your COMPLETE TERM 1 SURVIVAL KIT designed for:

📖 Quick revision before exams
🎯 Understanding exam patterns
💡 Last-minute prep (3-7 days before exam)
✅ Self-assessment and gap identification
🔥 Scoring maximum marks with minimum time

📊 Term 1 Exam Structure Overview

Total Marks: 40 (each subject)
Duration: 90 minutes per paper
Question Types: MCQs, Case-Based, Assertion-Reason

Subject-wise Breakdown:

Subject Chapters Covered Marks Difficulty
Science 8 chapters 40 ⚡ Medium
Mathematics 7 chapters 40 🔥 Hard
Social Science 8-9 chapters 40 ✅ Easy-Medium

Subject	Chapters Covered	Marks	Difficulty
Science	8 chapters	40	⚡ Medium
Mathematics	7 chapters	40	🔥 Hard
Social Science	8-9 chapters	40	✅ Easy-Medium

🔬 SCIENCE - TERM 1 REVISION

Chapter-wise Quick Revision

1️⃣ Chemical Reactions and Equations

Difficulty: ✅ Easy | Marks: 4-5

Must-Know Concepts:

Types of Reactions (Most Important!)
- Combination: A + B → AB
- Decomposition: AB → A + B
- Displacement: A + BC → AC + B
- Double Displacement: AB + CD → AD + CB
- Redox: Oxidation + Reduction together
Balancing Equations - Hit or Trial method
Effects of Chemical Reactions:
- Heat change (Exothermic/Endothermic)
- Precipitate formation
- Gas evolution
- Color change

Memory Trick: "Can Dogs Dig Deep Rivers?"

Combination
Decomposition
Displacement
Double Displacement
Redox

Common Mistakes:

❌ Not balancing equations properly
❌ Confusing displacement with double displacement
❌ Forgetting state symbols (s, l, g, aq)

Quick Practice:

2H₂ + O₂ → 2H₂O (What type? Combination)
2AgCl → 2Ag + Cl₂ (What type? Decomposition)
Zn + CuSO₄ → ZnSO₄ + Cu (What type? Displacement)

2️⃣ Acids, Bases and Salts

Difficulty: ⚡ Medium | Marks: 5-6

Golden Rules:

pH Scale:
- pH < 7 = Acid
- pH = 7 = Neutral
- pH > 7 = Base
Indicator Color Changes:

Indicator Acid Base Neutral
Litmus (Red) Red Blue Purple
Litmus (Blue) Red Blue Purple
Phenolphthalein Colorless Pink Colorless
Methyl Orange Red Yellow Orange

Indicator	Acid	Base	Neutral
Litmus (Red)	Red	Blue	Purple
Litmus (Blue)	Red	Blue	Purple
Phenolphthalein	Colorless	Pink	Colorless
Methyl Orange	Red	Yellow	Orange

Important Reactions:
- Acid + Metal → Salt + H₂↑
- Acid + Base → Salt + H₂O (Neutralization)
- Acid + Carbonate → Salt + H₂O + CO₂↑
Important Salts:
- Baking Soda: NaHCO₃
- Washing Soda: Na₂CO₃·10H₂O
- Bleaching Powder: CaOCl₂
- Plaster of Paris: CaSO₄·½H₂O

Memory Trick: "Litmus Bears Pink Mangoes"

Litmus (changes with pH)
Base turns litmus blue
Phenolphthalein pink in base
Methyl orange - varies

Exam Alert:

🔥 Neutralization reaction with diagram = 3 marks
🔥 pH scale explanation = 2-3 marks
🔥 Difference between compounds = 3 marks

3️⃣ Metals and Non-Metals

Difficulty: ⚡ Medium | Marks: 5-6

Quick Comparison:

Property Metals Non-Metals
State Solid (except Hg) Solid/Gas/Liquid
Lustre Shiny Dull
Hardness Hard Soft (except diamond)
Malleability Malleable Brittle
Ductility Ductile Non-ductile
Conductivity Good Poor
Sonorous Yes No

Property	Metals	Non-Metals
State	Solid (except Hg)	Solid/Gas/Liquid
Lustre	Shiny	Dull
Hardness	Hard	Soft (except diamond)
Malleability	Malleable	Brittle
Ductility	Ductile	Non-ductile
Conductivity	Good	Poor
Sonorous	Yes	No

Reactivity Series (LEARN THIS!)

"Please Send Charlie's Monkeys And Zebras In Lead Cages Having Secure Guards Sometimes"

Potassium (K) - Most reactive
Sodium (Na)
Calcium (Ca)
Magnesium (Mg)
Aluminium (Al)
Zinc (Zn)
Iron (Fe)
Lead (Pb)
Copper (Cu)
Mercury (Hg)
Silver (Ag)
Gold (Au) - Least reactive

Important Reactions:

Metal + Oxygen → Metal Oxide (Basic)
Metal + Water → Metal Hydroxide + H₂
Metal + Acid → Salt + H₂
More reactive metal + Less reactive metal's salt → Displacement

Extraction of Metals:

Reactive metals (Na, K, Ca): Electrolytic reduction
Moderate metals (Zn, Fe, Pb): Reduction with carbon
Less reactive (Hg, Cu): Heating alone

4️⃣ Carbon and Its Compounds

Difficulty: 🔥 Hard | Marks: 6-8

Core Concepts:

1. Why Carbon is Unique:

Tetravalency (4 bonds)
Catenation (self-linking)
Small size (strong bonds)
Forms single/double/triple bonds

2. Homologous Series:

Series General Formula First Member
Alkanes CₙH₂ₙ₊₂ Methane (CH₄)
Alkenes CₙH₂ₙ Ethene (C₂H₄)
Alkynes CₙH₂ₙ₋₂ Ethyne (C₂H₂)

Series	General Formula	First Member
Alkanes	CₙH₂ₙ₊₂	Methane (CH₄)
Alkenes	CₙH₂ₙ	Ethene (C₂H₄)
Alkynes	CₙH₂ₙ₋₂	Ethyne (C₂H₂)

Memory Trick: "My Elephant Plays Basketball Properly"

Methane (1C)
Ethane (2C)
Propane (3C)
Butane (4C)
Pentane (5C)

3. Functional Groups (VERY IMPORTANT!):

Group Formula Example Name Ending
Alcohol -OH CH₃OH -ol
Aldehyde -CHO HCHO -al
Ketone >C=O CH₃COCH₃ -one
Carboxylic Acid -COOH CH₃COOH -oic acid
Ester -COO- CH₃COOC₂H₅ -oate

Group	Formula	Example	Name Ending
Alcohol	-OH	CH₃OH	-ol
Aldehyde	-CHO	HCHO	-al
Ketone	>C=O	CH₃COCH₃	-one
Carboxylic Acid	-COOH	CH₃COOH	-oic acid
Ester	-COO-	CH₃COOC₂H₅	-oate

Memory Trick: "All Angry Kids Create Errors"

4. Important Reactions:

Combustion: CₙH₂ₙ₊₂ + O₂ → CO₂ + H₂O + Energy
Esterification: Acid + Alcohol ⇌ Ester + Water
Saponification: Fat + NaOH → Soap + Glycerol

5. Soaps vs Detergents:

Property Soap Detergent
Hard water Doesn't work (scum) Works perfectly
Biodegradability Biodegradable Some non-biodegradable
Cost Cheaper More expensive

Property	Soap	Detergent
Hard water	Doesn't work (scum)	Works perfectly
Biodegradability	Biodegradable	Some non-biodegradable
Cost	Cheaper	More expensive

Exam Strategy:

Esterification diagram = 5 marks (practice drawing!)
Soap's cleansing action = 5 marks (MUST draw micelle)
IUPAC naming = 3 marks (practice 10+ examples)

5️⃣ Periodic Classification of Elements

Difficulty: ✅ Easy | Marks: 3-4

Key Points:

Modern Periodic Table:

18 Groups (vertical columns)
7 Periods (horizontal rows)
Arranged by increasing atomic number

Periodic Trends:

Atomic Size: Decreases left to right, Increases top to bottom
Metallic Character: Decreases left to right, Increases top to bottom
Non-metallic Character: Increases left to right, Decreases top to bottom
Valency: First increases then decreases

Valence Electrons and Group:

Group 1 = 1 valence electron
Group 2 = 2 valence electrons
Group 13 = 3 valence electrons
Group 14 = 4 valence electrons
Group 15 = 5 valence electrons
Group 16 = 6 valence electrons
Group 17 = 7 valence electrons
Group 18 = 8 valence electrons (Noble gases)

Memory Trick for First 20 Elements:

"Happy Henry Lives Beside Boron Cottage, Near Our Friend Nelly Nancy Mg Allen. Silly Patrick Stays Close. Arthur Kisses Carrie."

H, He, Li, Be, B, C, N, O, F, Ne, Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca

6️⃣ Life Processes

Difficulty: ⚡ Medium | Marks: 5-6

Quick Overview:

1. Nutrition:

Autotrophic: Plants (photosynthesis)
- 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ (in presence of sunlight & chlorophyll)
Heterotrophic: Animals (consume food)

2. Respiration:

Aerobic: Glucose + O₂ → CO₂ + H₂O + 38 ATP
Anaerobic (in muscles): Glucose → Lactic acid + 2 ATP
Anaerobic (in yeast): Glucose → Ethanol + CO₂ + 2 ATP

3. Transportation:

Plants: Xylem (water & minerals ↑) and Phloem (food ↓)
Humans: Blood (RBC, WBC, Platelets, Plasma)

4. Excretion:

Plants: Through stomata, lenticels
Humans: Kidneys (nephron filters blood)

Memory Trick: "Nutrition Really Transports Energy"

Nutrition
Respiration
Transportation
Excretion

Exam Focus:

Draw and label nephron structure = 5 marks
Photosynthesis process = 3 marks
Difference between arteries and veins = 3 marks

7️⃣ Control and Coordination

Difficulty: 🔥 Hard | Marks: 5-6

Nervous System:

Neuron Structure:

Dendrites (receive signals)
Cell body (processes)
Axon (transmits)
Synapse (gap between neurons)

Types of Actions:

Reflex Action: Automatic, involuntary
- Path: Receptor → Sensory neuron → Spinal cord → Motor neuron → Effector
Voluntary Action: Controlled by brain

Endocrine System:

Gland Hormone Function
Pituitary Growth hormone Growth regulation
Thyroid Thyroxine Metabolic rate
Adrenal Adrenaline Emergency response
Pancreas Insulin Blood sugar control
Testes Testosterone Male development
Ovaries Estrogen Female development

Gland	Hormone	Function
Pituitary	Growth hormone	Growth regulation
Thyroid	Thyroxine	Metabolic rate
Adrenal	Adrenaline	Emergency response
Pancreas	Insulin	Blood sugar control
Testes	Testosterone	Male development
Ovaries	Estrogen	Female development

Plant Hormones:

Hormone Function
Auxin Cell elongation, phototropism
Gibberellin Stem growth
Cytokinin Cell division
Abscisic Acid Inhibits growth, closes stomata

Hormone	Function
Auxin	Cell elongation, phototropism
Gibberellin	Stem growth
Cytokinin	Cell division
Abscisic Acid	Inhibits growth, closes stomata

Memory Trick: "Auxins Go Crazy After Party"

Auxin
Gibberellin
Cytokinin
Abscisic acid

8️⃣ How Do Organisms Reproduce?

Difficulty: ⚡ Medium | Marks: 4-5

Asexual Reproduction (Plants):

Fission: Binary (Amoeba), Multiple (Plasmodium)
Fragmentation: Spirogyra
Regeneration: Planaria, Hydra
Budding: Yeast, Hydra
Vegetative Propagation: Stem, root, leaves
Spore Formation: Rhizopus (bread mould)

Sexual Reproduction:

Plants:

Flower parts: Stamen (male), Pistil (female)
Pollination → Fertilization → Seed formation

Humans:

Male: Testes produce sperms
Female: Ovaries produce eggs
Fertilization → Zygote → Embryo → Fetus

Memory Trick: "Father Feels Really Bad Visiting Sick Students"

Fission
Fragmentation
Regeneration
Budding
Vegetative propagation
Spore formation

📐 MATHEMATICS - TERM 1 REVISION

1️⃣ Real Numbers

Difficulty: ⚡ Medium | Marks: 4-5

Key Concepts:

1. Euclid's Division Lemma:

a = bq + r, where 0 ≤ r < b
Used to find HCF

2. Fundamental Theorem of Arithmetic:

Every composite number can be expressed as product of primes
Example: 60 = 2² × 3 × 5

3. Important Formulas:

HCF × LCM = Product of two numbers
LCM of fractions = (LCM of numerators) / (HCF of denominators)
HCF of fractions = (HCF of numerators) / (LCM of denominators)

4. Rational and Irrational Numbers:

Rational: Can be expressed as p/q (q ≠ 0)
Irrational: Cannot be expressed as p/q (√2, √3, π)
Decimal expansion:
- Rational = Terminating or Repeating
- Irrational = Non-terminating, Non-repeating

Quick Practice:

Find HCF of 96 and 404 using Euclid's algorithm
Prove √5 is irrational
Express 3.̅2̅7̅ as p/q form

2️⃣ Polynomials

Difficulty: ⚡ Medium | Marks: 4-5

Types of Polynomials:

Linear: ax + b (degree 1)
Quadratic: ax² + bx + c (degree 2)
Cubic: ax³ + bx² + cx + d (degree 3)

Relationship between Zeros and Coefficients:

For Quadratic (ax² + bx + c):

Sum of zeros (α + β) = -b/a
Product of zeros (αβ) = c/a

For Cubic (ax³ + bx² + cx + d):

α + β + γ = -b/a
αβ + βγ + γα = c/a
αβγ = -d/a

Division Algorithm:

Dividend = Divisor × Quotient + Remainder

Common Questions:

Find zeros of polynomial
Form polynomial with given zeros
Verify relationship between zeros and coefficients

3️⃣ Pair of Linear Equations in Two Variables

Difficulty: 🔥 Hard | Marks: 5-6

General Form:

a₁x + b₁y + c₁ = 0
a₂x + b₂y + c₂ = 0

Methods of Solution:

Graphical Method (draw lines, find intersection)
Substitution Method
Elimination Method
Cross-Multiplication Method

Conditions for Solutions:

Condition Type Solution
a₁/a₂ ≠ b₁/b₂ Consistent Unique solution (intersecting lines)
a₁/a₂ = b₁/b₂ ≠ c₁/c₂ Inconsistent No solution (parallel lines)
a₁/a₂ = b₁/b₂ = c₁/c₂ Dependent Infinite solutions (coincident lines)

Condition	Type	Solution
a₁/a₂ ≠ b₁/b₂	Consistent	Unique solution (intersecting lines)
a₁/a₂ = b₁/b₂ ≠ c₁/c₂	Inconsistent	No solution (parallel lines)
a₁/a₂ = b₁/b₂ = c₁/c₂	Dependent	Infinite solutions (coincident lines)

Memory Trick: "Unique Is Infinite Chaos"

Unique: Lines intersect (different slopes)
Infinite: Lines coincide (same line)
Chaos (No solution): Lines parallel (same slope, different intercept)

4️⃣ Quadratic Equations

Difficulty: 🔥 Hard | Marks: 5-6

Standard Form: ax² + bx + c = 0

Methods to Solve:

Factorization Method
Completing the Square
Quadratic Formula:
- x = [-b ± √(b² - 4ac)] / 2a

Nature of Roots (Discriminant):

D = b² - 4ac

D Value Nature of Roots
D > 0 Real and distinct
D = 0 Real and equal
D < 0 No real roots (imaginary)

D Value	Nature of Roots
D > 0	Real and distinct
D = 0	Real and equal
D < 0	No real roots (imaginary)

Common Questions:

Solve quadratic equations
Nature of roots
Form equation with given roots
Word problems (age, consecutive numbers, area)

5️⃣ Arithmetic Progressions (AP)

Difficulty: ✅ Easy-Medium | Marks: 4-5

Important Formulas:

1. nth term: aₙ = a + (n-1)d

2. Sum of n terms: Sₙ = n/2 [2a + (n-1)d]
OR Sₙ = n/2 [a + l] (where l = last term)

3. Common difference: d = a₂ - a₁

Types of Questions:

Find nth term
Find sum of n terms
Find which term has given value
Word problems

Memory Trick for AP:

Always
Progressing by same difference (d)

6️⃣ Triangles

Difficulty: ⚡ Medium | Marks: 5-6

Similarity Criteria:

AA (Angle-Angle): If two angles are equal
SSS (Side-Side-Side): If sides are proportional
SAS (Side-Angle-Side): Two sides proportional + included angle equal

Important Theorems:

Basic Proportionality Theorem (Thales Theorem):

If line parallel to one side divides other two sides proportionally

Pythagoras Theorem:

(Hypotenuse)² = (Base)² + (Perpendicular)²
In right triangle: c² = a² + b²

Areas of Similar Triangles:

Ratio of areas = (Ratio of corresponding sides)²

7️⃣ Coordinate Geometry

Difficulty: ✅ Easy | Marks: 3-4

Important Formulas:

1. Distance Formula: d = √[(x₂-x₁)² + (y₂-y₁)²]

2. Section Formula (Internal Division):

x = (m₁x₂ + m₂x₁)/(m₁+m₂)
y = (m₁y₂ + m₂y₁)/(m₁+m₂)

3. Midpoint Formula:

x = (x₁+x₂)/2
y = (y₁+y₂)/2

4. Area of Triangle: Area = ½ |x₁(y₂-y₃) + x₂(y₃-y₁) + x₃(y₁-y₂)|

Common Questions:

Find distance between two points
Find coordinates of point dividing line segment
Prove triangle/quadrilateral properties
Find area of triangle

🌍 SOCIAL SCIENCE - TERM 1 REVISION

📚 HISTORY

1️⃣ The Rise of Nationalism in Europe

Difficulty: ⚡ Medium | Marks: 4-5

Key Events:

French Revolution (1789): Ideas of liberty, equality, fraternity
Napoleon's Rule: Civil Code of 1804, spread of nationalism
Congress of Vienna (1815): Restored old monarchies
Revolutions of 1830 & 1848: Liberal uprisings across Europe
Unification of Italy: Role of Mazzini, Cavour, Garibaldi
Unification of Germany: Role of Bismarck, 1871

Important Personalities:

Giuseppe Mazzini: Young Italy
Count Cavour: Chief Minister of Sardinia-Piedmont
Giuseppe Garibaldi: Led Red Shirts
Otto von Bismarck: "Blood and Iron" policy

Memory Trick: "My Clever Generals Beat Everyone"

Mazzini
Cavour
Garibaldi
Bismarck
Europe unified

2️⃣ Nationalism in India

Difficulty: ⚡ Medium | Marks: 5-6

Major Movements:

1. Non-Cooperation Movement (1920-1922)

Jallianwala Bagh massacre triggered it
Boycott of British goods, institutions
Ended after Chauri Chaura incident

2. Civil Disobedience Movement (1930-1934)

Salt March (Dandi March) - 240 miles
April 6, 1930: Gandhi broke salt law
Gandhi-Irwin Pact (1931)

3. Quit India Movement (1942)

"Do or Die" slogan
August Kranti

Important Dates:

1919: Jallianwala Bagh Massacre
1920: Non-Cooperation launched
1922: Chauri Chaura, movement withdrawn
1929: Lahore Congress, Purna Swaraj
1930: Salt March
1931: Gandhi-Irwin Pact
1942: Quit India Movement

3️⃣ The Making of a Global World

Difficulty: ✅ Easy-Medium | Marks: 3-4

Key Concepts:

Pre-modern world: Trade routes (Silk Route)
19th Century: Technology, faster transport, colonialism
Trade flows: Food, people, capital
Great Depression (1929-1930s): Economic crisis
Post-WWII: IMF, World Bank, Bretton Woods system

4️⃣ The Age of Industrialisation

Difficulty: ⚡ Medium | Marks: 4-5

Industrial Revolution:

Started in England (textile industry)
Steam engine by James Watt
Factory system replaced domestic system

India's Industrialisation:

First textile mill: 1854, Bombay
Jamshedpur: Steel city
Coal mining in Raniganj

5️⃣ Print Culture and the Modern World

Difficulty: ✅ Easy | Marks: 3-4

Key Points:

Gutenberg's Press (1450s): First printed Bible
Print in India:
- First printing press: Goa (1556)
- Bengal Gazette (1780): First newspaper
Impact: Spread of ideas, reformation, nationalism
Vernacular Press Act (1878): Controlled Indian newspapers

🗺️ GEOGRAPHY

1️⃣ Resources and Development

Difficulty: ✅ Easy | Marks: 3-4

Types of Resources:

Based on Origin:

Biotic (living)
Abiotic (non-living)

Based on Exhaustibility:

Renewable
Non-renewable

Based on Ownership:

Individual
Community
National
International

Based on Development:

Potential
Developed
Stock
Reserves

Resource Conservation:

Sustainable development
Agenda 21
Resource planning

2️⃣ Forest and Wildlife Resources

Difficulty: ✅ Easy | Marks: 3-4

Types of Species:

Normal species
Endangered species
Vulnerable species
Rare species
Endemic species
Extinct species

Conservation:

Project Tiger (1973)
Biosphere Reserves
National Parks
Wildlife Sanctuaries

Major National Parks:

Corbett (Uttarakhand)
Kaziranga (Assam)
Gir (Gujarat)
Kanha (MP)

3️⃣ Water Resources

Difficulty: ⚡ Medium | Marks: 4-5

Water Scarcity Reasons:

Growing population
Unequal distribution
Pollution
Over-exploitation

Water Conservation Methods:

Rainwater harvesting
Watershed management
Check dams
Traditional systems:
- Kulhs (HP)
- Bamboo drip irrigation (Meghalaya)
- Rooftop rainwater harvesting (Rajasthan)

Dams:

Benefits: Irrigation, electricity, flood control
Problems: Displacement, environmental issues

Multi-purpose Projects:

Bhakra Nangal
Damodar Valley
Hirakud

📖 POLITICAL SCIENCE

1️⃣ Power Sharing

Difficulty: ✅ Easy | Marks: 3-4

Forms of Power Sharing:

Horizontal (Organs of Govt):
- Legislature
- Executive
- Judiciary
Vertical (Levels of Govt):
- Central
- State
- Local
Social Groups:
- Different social groups represented
Political Parties:
- Competition ensures power sharing

Examples:

Belgium: Complex power-sharing (linguistic communities)
Sri Lanka: Failed power-sharing (Majoritarianism)

2️⃣ Federalism

Difficulty: ⚡ Medium | Marks: 4-5

Key Features:

Two or more levels of government
Jurisdiction specified by constitution
Courts interpret constitution
Revenue sources divided

Types:

Coming Together: USA, Switzerland, Australia
Holding Together: India, Spain, Belgium

Indian Federalism:

Union List: Defense, foreign affairs, currency (97 subjects) State List: Police, agriculture, irrigation (66 subjects) Concurrent List: Education, forests, marriage (47 subjects)

Language Policy:

Hindi: Official language
22 Scheduled languages
English: Associate official language

💰 ECONOMICS

1️⃣ Development

Difficulty: ✅ Easy | Marks: 3-4

National Income:

Total income of country

Per Capita Income:

National Income / Population
Better indicator than total income

Development Indicators:

Income
Literacy rate
Infant mortality rate
Net attendance ratio

HDI (Human Development Index):

Life expectancy
Education
Per capita income

Sustainability:

Meeting present needs without compromising future

2️⃣ Sectors of Indian Economy

Difficulty: ✅ Easy-Medium | Marks: 3-4

Three Sectors:

Primary Sector:

Agriculture, mining, fishing
Natural products
Also called Agriculture sector

Secondary Sector:

Manufacturing
Converts raw materials
Also called Industrial sector

Tertiary Sector:

Services (transport, banking, trade)
Also called Service sector

Organized vs Unorganized:

Organized: Registered, follows rules
Unorganized: Unregistered, no job security

Public vs Private:

Public: Government owned
Private: Private ownership

🎯 EXAM STRATEGIES & TIPS

Time Management (90 minutes)

Suggested Breakdown:

Reading question paper: 5 minutes
MCQs (20 questions): 30 minutes
Case-based questions: 25 minutes
Assertion-Reason: 15 minutes
Revision: 15 minutes

Subject-wise Strategy:

Science:

✅ Practice diagrams (nephron, neuron, micelle) ✅ Learn all chemical equations by heart ✅ Understand concepts, don't just memorize ✅ Practice numericals regularly

Mathematics:

✅ Formula sheet must be on fingertips ✅ Practice 10 questions daily ✅ Show all steps clearly ✅ Double-check calculations

Social Science:

✅ Timeline charts for history dates ✅ Map work for geography (practice!) ✅ Understand concepts, keywords important ✅ Current affairs awareness helps

📝 LAST-MINUTE REVISION CHECKLIST (48 Hours Before Exam)

Science - Must Review:

Maths - Must Review:

All formulas written on one sheet
Euclid's division algorithm (HCF)
Quadratic formula and discriminant
AP formulas (nth term, sum)
Triangle similarity criteria
Coordinate geometry formulas
Practice 2 questions from each chapter

Social Science - Must Review:

🎓 COMMON MISTAKES TO AVOID

Science:

❌ Not balancing chemical equations ❌ Forgetting state symbols in reactions ❌ Confusing arteries with veins ❌ Wrong functional group identification ❌ Not drawing neat diagrams

✅ Fix: Practice writing equations 5 times daily

Mathematics:

❌ Calculation errors (silly mistakes) ❌ Not showing steps (lose marks!) ❌ Forgetting to check discriminant ❌ Wrong formula application ❌ Not writing units in word problems

✅ Fix: Always show complete working, recheck twice

Social Science:

❌ Writing wrong dates ❌ Confusing similar terms ❌ Not reading question properly ❌ Vague answers without keywords ❌ Poor map marking

✅ Fix: Use exact terms from NCERT, practice map daily

💡 MEMORY TECHNIQUES FOR QUICK REVISION

Science Memory Tricks:

1. Types of Chemical Reactions: "Can Dogs Dig Deep Rivers?"

Combination
Decomposition
Displacement
Double Displacement
Redox

2. First 20 Elements: "Happy Henry Lives Beside Boron Cottage, Near Our Friend Nelly Nancy Mg Allen. Silly Patrick Stays Close. Arthur Kisses Carrie." H, He, Li, Be, B, C, N, O, F, Ne, Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca

3. Reactivity Series: "Please Send Charlie's Monkeys And Zebras In Lead Cages Having Secure Guards Sometimes" K, Na, Ca, Mg, Al, Zn, Fe, Pb, Cu, Hg, Ag, Au

4. Plant Hormones: "Auxins Go Crazy After Party"

Auxin
Gibberellin
Cytokinin
Abscisic acid

5. Life Processes: "Nutrition Really Transports Energy"

Nutrition
Respiration
Transportation
Excretion

6. Functional Groups: "All Angry Kids Create Errors"

Alcohol (-OH)
Aldehyde (-CHO)
Ketone (>C=O)
Carboxylic acid (-COOH)
Ester (-COO-)

Maths Memory Tricks:

1. Quadratic Formula: "A Negative Boy Couldn't Decide Between Going To A Radical Party Or Staying Home With His 2 Siblings And Cousins" x = [-b ± √(b² - 4ac)] / 2a

2. Coordinate Geometry: "Salty Sailors Sailed Many Miles"

Section formula
Slope formula
Same point (midpoint)
Many triangles (area)
More miles (distance)

Social Science Memory Tricks:

1. Italian Unification: "My Clever Generals Beat Everyone"

Mazzini
Cavour
Garibaldi
Brought
Europe together

2. Indian Movements: "Never Cry, Quit Immediately"

Non-cooperation (1920)
Civil Disobedience (1930)
Quit India (1942)

3. Types of Resources: "BORN Differently"

Biotic/Abiotic
Ownership (Individual, Community, National, International)
Renewable/Non-renewable
Natural
Development stage (Potential, Developed, Stock, Reserves)

🔥 HIGH-WEIGHTAGE TOPICS (MUST STUDY!)

Science (Focus on these for 25+ marks):

Chemical Reactions - Types, balancing (5 marks)
Carbon Compounds - Functional groups, esterification, soap (6-8 marks)
Life Processes - Diagrams of nephron, heart (5-6 marks)
Control & Coordination - Reflex action, hormones (5-6 marks)

Maths (Focus on these for 25+ marks):

Quadratic Equations - All methods, word problems (5-6 marks)
Arithmetic Progressions - All formulas (4-5 marks)
Pair of Linear Equations - Graphical, algebraic methods (5-6 marks)
Triangles - Similarity theorems (5-6 marks)

Social Science (Focus on these for 25+ marks):

Nationalism in India - Movements with dates (5-6 marks)
Resources and Development - Types, conservation (4-5 marks)
Federalism - Indian federal system (4-5 marks)
Sectors of Economy - Three sectors comparison (3-4 marks)

📊 CHAPTER-WISE WEIGHTAGE TABLE

Science

Chapter Expected Marks Difficulty Priority
Chemical Reactions 4-5 ✅ Easy HIGH
Acids, Bases, Salts 5-6 ⚡ Medium HIGH
Metals & Non-Metals 5-6 ⚡ Medium HIGH
Carbon Compounds 6-8 🔥 Hard VERY HIGH
Periodic Classification 3-4 ✅ Easy MEDIUM
Life Processes 5-6 ⚡ Medium HIGH
Control & Coordination 5-6 🔥 Hard HIGH
Reproduction 4-5 ⚡ Medium MEDIUM

Chapter	Expected Marks	Difficulty	Priority
Chemical Reactions	4-5	✅ Easy	HIGH
Acids, Bases, Salts	5-6	⚡ Medium	HIGH
Metals & Non-Metals	5-6	⚡ Medium	HIGH
Carbon Compounds	6-8	🔥 Hard	VERY HIGH
Periodic Classification	3-4	✅ Easy	MEDIUM
Life Processes	5-6	⚡ Medium	HIGH
Control & Coordination	5-6	🔥 Hard	HIGH
Reproduction	4-5	⚡ Medium	MEDIUM

Mathematics

Chapter Expected Marks Difficulty Priority
Real Numbers 4-5 ⚡ Medium HIGH
Polynomials 4-5 ⚡ Medium HIGH
Linear Equations 5-6 🔥 Hard VERY HIGH
Quadratic Equations 5-6 🔥 Hard VERY HIGH
Arithmetic Progressions 4-5 ✅ Easy HIGH
Triangles 5-6 ⚡ Medium HIGH
Coordinate Geometry 3-4 ✅ Easy MEDIUM

Chapter	Expected Marks	Difficulty	Priority
Real Numbers	4-5	⚡ Medium	HIGH
Polynomials	4-5	⚡ Medium	HIGH
Linear Equations	5-6	🔥 Hard	VERY HIGH
Quadratic Equations	5-6	🔥 Hard	VERY HIGH
Arithmetic Progressions	4-5	✅ Easy	HIGH
Triangles	5-6	⚡ Medium	HIGH
Coordinate Geometry	3-4	✅ Easy	MEDIUM

Social Science

Chapter Expected Marks Difficulty Priority
Rise of Nationalism (Europe) 4-5 ⚡ Medium HIGH
Nationalism in India 5-6 ⚡ Medium VERY HIGH
Global World 3-4 ✅ Easy MEDIUM
Industrialisation 4-5 ⚡ Medium MEDIUM
Print Culture 3-4 ✅ Easy MEDIUM
Resources & Development 4-5 ✅ Easy HIGH
Forest & Wildlife 3-4 ✅ Easy MEDIUM
Water Resources 4-5 ⚡ Medium HIGH
Power Sharing 3-4 ✅ Easy MEDIUM
Federalism 4-5 ⚡ Medium HIGH
Development 3-4 ✅ Easy MEDIUM
Sectors of Economy 3-4 ✅ Easy HIGH

Chapter	Expected Marks	Difficulty	Priority
Rise of Nationalism (Europe)	4-5	⚡ Medium	HIGH
Nationalism in India	5-6	⚡ Medium	VERY HIGH
Global World	3-4	✅ Easy	MEDIUM
Industrialisation	4-5	⚡ Medium	MEDIUM
Print Culture	3-4	✅ Easy	MEDIUM
Resources & Development	4-5	✅ Easy	HIGH
Forest & Wildlife	3-4	✅ Easy	MEDIUM
Water Resources	4-5	⚡ Medium	HIGH
Power Sharing	3-4	✅ Easy	MEDIUM
Federalism	4-5	⚡ Medium	HIGH
Development	3-4	✅ Easy	MEDIUM
Sectors of Economy	3-4	✅ Easy	HIGH

🎯 SAMPLE QUESTION PAPER PATTERN

Science (40 Marks - 90 Minutes)

Section A: MCQs (20 marks)

20 questions × 1 mark = 20 marks
From all chapters equally

Section B: Case-Based/Assertion-Reason (12 marks)

3 case-based passages with 4 questions each
OR Assertion-Reason type

Section C: Short Answer (8 marks)

4 questions × 2 marks = 8 marks
Definitions, differences, short explanations

Mathematics (40 Marks - 90 Minutes)

Section A: MCQs (20 marks)

20 questions × 1 mark = 20 marks

Section B: Case-Based (8 marks)

2 case studies with 4 questions each

Section C: Short Answer (12 marks)

6 questions × 2 marks = 12 marks
Numerical problems, prove, find

Social Science (40 Marks - 90 Minutes)

Section A: MCQs (20 marks)

20 questions × 1 mark = 20 marks

Section B: Source-Based (10 marks)

2 passages with questions

Section C: Short Answer (10 marks)

5 questions × 2 marks = 10 marks
Explain, distinguish, describe

💪 STUDY SCHEDULE FOR LAST 7 DAYS

Day 7 (One Week Before):

Morning: Science Ch 1-4 revision
Afternoon: Maths Ch 1-3 revision
Evening: Social Science History chapters
Night: Make formula sheets

Day 6:

Morning: Science Ch 5-8 revision
Afternoon: Maths Ch 4-7 revision
Evening: Social Science Geography
Night: Practice diagrams

Day 5:

Morning: Science practicals and diagrams
Afternoon: Maths numerical practice (20 problems)
Evening: Social Science Political Science
Night: Review all memory tricks

Day 4:

Morning: Science weak chapters
Afternoon: Maths weak chapters
Evening: Social Science Economics
Night: Solve 1 full sample paper

Day 3:

Morning: Revise all Science formulas & equations
Afternoon: Revise all Maths formulas
Evening: Revise Social Science dates & maps
Night: Solve 1 full sample paper

Day 2 (Two Days Before):

Morning: Quick revision Science (read notes only)
Afternoon: Quick revision Maths (solve 10 questions)
Evening: Quick revision Social Science
Night: Early sleep! (9 PM)

Day 1 (One Day Before):

Morning: Review formula sheets only
Afternoon: Glance through diagrams
Evening: Light revision, no new topics
Night: Sleep by 9 PM, no late night!

Exam Day:

Wake up early
Light breakfast
Quick glance at formulas (15 min)
Reach exam center 30 min early
Stay calm & confident!

🧠 EXAM DAY STRATEGY

Before Entering Exam Hall:

✅ Carry admit card, pens (3), pencil, eraser, ruler ✅ Reach 30 minutes early ✅ Quick mental revision of formulas ✅ Stay calm, take deep breaths

First 15 Minutes (Reading Time):

✅ Read entire paper carefully ✅ Identify easy questions (mark with ✓) ✅ Identify difficult questions (mark with ?) ✅ Plan time allocation

During Exam:

✅ Start with easy questions - builds confidence ✅ Show all steps in Maths - crucial for marks ✅ Draw neat diagrams in Science - use pencil, label clearly ✅ Underline keywords in Social Science answers ✅ Don't get stuck - move on if question takes too long ✅ Recheck calculations - common mistake source

Last 15 Minutes:

✅ Attempt all questions marked with ? ✅ Recheck all calculations ✅ Ensure all question numbers written ✅ Fill OMR carefully (if applicable)

📌 IMPORTANT REMINDERS

Science:

⚠️ Always balance chemical equations ⚠️ Write state symbols (s, l, g, aq) ⚠️ Draw neat labeled diagrams ⚠️ Learn all equations by heart ⚠️ Understand, don't just memorize

Mathematics:

⚠️ Show complete working ⚠️ Double-check calculations ⚠️ Write formulas before applying ⚠️ Don't skip steps ⚠️ Recheck negative signs

Social Science:

⚠️ Write exact dates (no approximations) ⚠️ Use NCERT terminology ⚠️ Answer in points/paragraphs as asked ⚠️ Practice map work daily ⚠️ Read questions twice before answering

🎯 QUICK FORMULA REFERENCE SHEET

Science - Must-Know Equations:

Chemical Reactions:

2H₂ + O₂ → 2H₂O
2Mg + O₂ → 2MgO
Zn + H₂SO₄ → ZnSO₄ + H₂↑
Na₂CO₃ + 2HCl → 2NaCl + H₂O + CO₂↑

Respiration:

Aerobic: C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + 38 ATP
Anaerobic: C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂ + 2 ATP

Photosynthesis:

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Maths - Must-Know Formulas:

Real Numbers:

HCF × LCM = Product of two numbers

Polynomials (Quadratic):

Sum of zeros: α + β = -b/a
Product: αβ = c/a

Quadratic Equations:

x = [-b ± √(b² - 4ac)] / 2a
Discriminant: D = b² - 4ac

AP:

aₙ = a + (n-1)d
Sₙ = n/2 [2a + (n-1)d]

Coordinate Geometry:

Distance: d = √[(x₂-x₁)² + (y₂-y₁)²]
Midpoint: [(x₁+x₂)/2, (y₁+y₂)/2]
Area of triangle: ½|x₁(y₂-y₃) + x₂(y₃-y₁) + x₃(y₁-y₂)|

✅ FINAL CONFIDENCE BOOSTERS

You've Got This If:

✅ You've read NCERT thoroughly ✅ You've practiced sample papers ✅ You understand concepts (not just memorized) ✅ You've solved previous year questions ✅ Your formula sheet is ready ✅ You're calm and confident

Remember:

💪 Term 1 is 50% of your year - Give it your all! 🎯 Quality > Quantity - Deep understanding > Surface memorization ⏰ Time management - Practice with timer 🧘 Stay calm - Panic won't help, confidence will 📚 NCERT is king - All questions from NCERT only ✨ You've prepared well - Trust yourself!

🎓 SCORING STRATEGY BY MARKS

For 90%+ (36-40 marks):

Attempt ALL questions
Zero silly mistakes
Perfect presentation
All diagrams labeled
Complete working shown

For 80-90% (32-36 marks):

Attempt 95% questions
Minimal calculation errors
Good presentation
Most diagrams correct
Major steps shown

For 70-80% (28-32 marks):

Attempt 90% questions
Some calculation errors okay
Decent presentation
Basic diagrams
Important steps shown

For 60-70% (24-28 marks):

Attempt 85% questions
Focus on easy chapters
Clear handwriting
Attempt all diagrams
Show key formulas

📖 ADDITIONAL RESOURCES ON NCERT NATION

Want More Detailed Notes?

Explore chapter-wise detailed guides:

📝 Science:

[Class 10 Science - Chemical Reactions Full Notes]
[Class 10 Science - Carbon and Its Compounds Complete Guide]
[Class 10 Science - Acids, Bases and Salts Detailed Notes]
[Class 10 Science - Life Processes with Diagrams]

📐 Mathematics:

[Class 10 Maths - Real Numbers Complete Solutions]
[Class 10 Maths - Quadratic Equations Practice Set]
[Class 10 Maths - Arithmetic Progressions Formula Sheet]

🌍 Social Science:

[Class 10 History - Nationalism in India Complete Notes]
[Class 10 History - Print Culture and Modern World]
[Class 10 Geography - Resources and Development]

Practice More:

🎯 Chapter-wise Quizzes Available! Test your knowledge with our interactive quizzes:

Instant results
Detailed explanations
Track your progress

📄 Sample Papers:

Term 1 Sample Paper 1 (with solutions)
Term 1 Sample Paper 2 (with solutions)
Previous Year Questions Chapter-wise

🎥 Video Explanations: Complex topics explained in simple language!

🎯 IMPORTANT EXAM TIPS FROM TOPPERS

From Priya (98% in Term 1):

"I made one formula sheet for each subject and revised it daily. The last week, I only looked at formula sheets and practiced papers. Don't try to read entire chapters again!"

From Rahul (96% in Term 1):

"Time management is KEY. I practiced with a timer. For every sample paper, I kept strict 90-minute limit. This helped me finish exam with 15 minutes to spare for checking."

From Ananya (94% in Term 1):

"I used mnemonics for everything - formulas, dates, definitions. It made revision so much faster! Also, sleep is important - don't study till 2 AM before exam."

From Arjun (92% in Term 1):

"Focus on NCERT only. Every word, every example. Don't waste time on guide books. And practice diagrams 10 times - they carry easy marks!"

📢 MOTIVATIONAL MESSAGE

Dear Class 10 Student,

You've worked hard throughout the year. You've attended classes, taken notes, done homework, and prepared for this moment. You are ready!

Term 1 exams are important, but they're not everything. They're a stepping stone to your future, not the destination. Give your best, but don't let stress overwhelm you.

Remember:

Your worth isn't defined by marks - You're so much more!
One exam doesn't decide your life - It's just one step
Doing your best is enough - That's all anyone can ask
Mistakes are okay - They're learning opportunities
You've got this - Believe in yourself!

After the exam, whether it went great or not-so-great, be proud that you gave it your shot. Life has many opportunities, and this is just one of them.

Now go ace those exams! We believe in you! 💪🎓✨

✨ FINAL CHECKLIST (Night Before Exam)

Academic Preparation:

Glanced through formula sheet
Reviewed diagrams once
Checked exam timetable
Know exam center location

Documents & Materials:

Personal Care:

Mental Preparation:

Positive self-talk
Deep breathing exercises
Confident mindset
Good night's sleep planned

🏆 CONCLUSION

This Term 1 Revision Guide covered: ✅ All subjects (Science, Maths, Social Science) ✅ Chapter-wise quick revision ✅ Important formulas and equations ✅ Memory tricks and mnemonics ✅ Exam strategies and time management ✅ Common mistakes to avoid ✅ Last-minute preparation tips ✅ Sample question patterns ✅ Scoring strategies

Your Success Formula:

Preparation + Practice + Confidence = Excellent Results

You have the preparation (this guide + your study). You need the practice (sample papers). Add confidence (believe in yourself). Result? Outstanding Term 1 performance!

📚 About NCERT Nation

At NCERT Nation, we believe every student deserves quality education and the right guidance. We create:

✨ Detailed Chapter Notes - Not just summaries, complete understanding 🎯 Exam-Focused Content - Strategies to score, not just study 💡 Simple Explanations - Complex topics made easy 🎓 Comprehensive Guides - Everything you need in one place 📝 Practice Resources - Quizzes, sample papers, question banks

Explore More on NCERT Nation:

Complete chapter notes for all classes (6-11)
Interactive quizzes for self-assessment
Sample papers with solutions
Revision guides for quick preparation
Study tips from toppers
Exam strategies and time management

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🎯 GOOD LUCK FOR YOUR TERM 1 EXAMS! 🎯

Study smart, stay confident, and give your best!

Remember: You're capable of achieving great things. This exam is just the beginning!

Last Updated: November 2025
Aligned with: Latest CBSE Syllabus 2024-25
Created by: NCERT Nation Team

Difficulty Levels Used:
✅ Easy | ⚡ Medium | 🔥 Hard

Priority Levels:
🔴 VERY HIGH | 🟠 HIGH | 🟡 MEDIUM

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Let's ace Term 1 together! 💪📚✨

🎓 SPECIAL THANKS

To all the students who've used NCERT Nation and shared their feedback - this guide is shaped by your needs and questions. Keep learning, keep growing!

Your success is our success! 🌟