Class 10 SEE Science Preparation Guide 2026 - Physics, Chemistry, Biology
Complete Class 10 SEE Science preparation guide covering physics, chemistry, and biology. Includes important topics, numerical problems, diagrams, and exam strategies for the CDC curriculum.
Table of Contents
Table of Contents
Introduction to SEE Science#
Science is a compulsory subject in the SEE examination carrying 75 marks. It covers three main branches — Physics, Chemistry, and Biology — each contributing equally to the total marks. A strong performance in Science can significantly boost your overall GPA and is essential for students planning to pursue science in higher secondary education.
The CDC Class 10 Science curriculum is designed to build scientific thinking and practical knowledge. This guide provides a comprehensive roadmap for your SEE 2026 Science preparation.
Unit-Wise Weightage#
| Unit | Topic | Approximate Marks | Difficulty |
|---|---|---|---|
| 1 | Force | 5-6 | Medium |
| 2 | Pressure | 4-5 | Easy |
| 3 | Energy | 5-6 | Medium |
| 4 | Heat | 4-5 | Easy-Medium |
| 5 | Light | 5-6 | Medium |
| 6 | Electricity & Magnetism | 6-7 | Medium-Hard |
| 7 | Classification of Elements | 4-5 | Easy |
| 8 | Chemical Reactions | 5-6 | Medium |
| 9 | Acid, Base & Salt | 4-5 | Easy |
| 10 | Metals & Non-metals | 4-5 | Medium |
| 11 | Carbon & Compounds | 4-5 | Medium |
| 12 | Life Processes | 6-7 | Medium |
| 13 | Heredity & Evolution | 4-5 | Medium |
| 14 | Environment | 4-5 | Easy |
Focus on Electricity & Magnetism, Life Processes, and Chemical Reactions — these three units consistently carry the highest marks and have the most numerical problems.
Physics Section#
Force#
A push or pull that changes or tends to change the state of rest or uniform motion of a body. SI unit: Newton (N). Force is a vector quantity.
- Newton's First Law (Law of Inertia): A body remains at rest or in uniform motion unless acted upon by an external force
- Newton's Second Law: F = ma (Force = mass × acceleration)
- Newton's Third Law: For every action, there is an equal and opposite reaction
- Gravitational Force: F = G(m₁m₂/r²), g = 9.8 m/s² on Earth
- Friction: Force opposing motion — static, kinetic, and rolling friction
A force of 20 N acts on a body of mass 4 kg. Find the acceleration produced.
Solution: F = ma → a = F/m = 20/4 = 5 m/s²
Pressure#
| Formula | Description |
|---|---|
| P = F/A | Pressure = Force / Area |
| P = hρg | Liquid pressure at depth h |
| 1 atm = 1.013 × 10⁵ Pa | Atmospheric pressure |
Energy#
- Kinetic Energy: KE = ½mv²
- Potential Energy: PE = mgh
- Law of Conservation of Energy: Energy cannot be created or destroyed, only transformed
- Power: P = W/t (Work done per unit time), Unit: Watt (W)
A 50 kg object is lifted to a height of 10 m. Calculate its potential energy. (g = 10 m/s²)
Solution: PE = mgh = 50 × 10 × 10 = 5000 J
Light#
- Mirror Formula: 1/f = 1/v + 1/u
- Lens Formula: 1/f = 1/v - 1/u
- Magnification: m = v/u = h'/h
- Power of Lens: P = 1/f (in meters), Unit: Dioptre (D)
Electricity & Magnetism (Highest Weightage)#
| Law/Formula | Expression | Application |
|---|---|---|
| Ohm's Law | V = IR | Circuit analysis |
| Series Resistance | R = R₁ + R₂ + R₃ | Total resistance |
| Parallel Resistance | 1/R = 1/R₁ + 1/R₂ + 1/R₃ | Total resistance |
| Electric Power | P = VI = I²R = V²/R | Power calculation |
| Joule's Law | H = I²Rt | Heat produced |
| Fleming's Right Hand Rule | Thumb → Motion, Index → Field, Middle → Current | Generator |
| Fleming's Left Hand Rule | Thumb → Force, Index → Field, Middle → Current | Motor |
Chemistry Section#
Classification of Elements#
- Groups: 18 vertical columns (1-18)
- Periods: 7 horizontal rows
- s-block: Groups 1-2 (alkali, alkaline earth metals)
- p-block: Groups 13-18 (metals, metalloids, non-metals)
- d-block: Groups 3-12 (transition metals)
- f-block: Lanthanides, Actinides (inner transition)
Memorize the first 20 elements with their symbols, atomic numbers, and valencies. This is frequently tested in MCQs and short questions.
Chemical Reactions#
A process where reactants are transformed into products with new chemical properties. Signs: color change, gas evolution, precipitate formation, temperature change.
| Reaction Type | General Equation | Example |
|---|---|---|
| Combination | A + B → AB | 2Mg + O₂ → 2MgO |
| Decomposition | AB → A + B | 2H₂O₂ → 2H₂O + O₂ |
| Displacement | A + BC → AC + B | Zn + CuSO₄ → ZnSO₄ + Cu |
| Double Displacement | AB + CD → AD + CB | AgNO₃ + NaCl → AgCl + NaNO₃ |
Acids, Bases, and Salts#
| Property | Acid | Base |
|---|---|---|
| Taste | Sour | Bitter |
| pH | < 7 | > 7 |
| Litmus | Blue → Red | Red → Blue |
| With Metal | H₂ gas | No reaction (usually) |
| With Carbonate | CO₂ gas | No reaction |
- NaCl: Common salt, neutral
- Na₂CO₃: Washing soda, basic
- NaHCO₃: Baking soda, basic
- CaOCl₂: Bleaching powder
- CaSO₄·½H₂O: Plaster of Paris
Carbon and Its Compounds#
Alkanes: CₙH₂ₙ₊₂ (Methane CH₄, Ethane C₂H₆, Propane C₃H₈) Alkenes: CₙH₂ₙ (Ethene C₂H₄, Propene C₃H₆) Alkynes: CₙH₂ₙ₋₂ (Ethyne C₂H₂, Propyne C₃H₄)
Biology Section#
Life Processes#
- Nutrition: Autotrophic (photosynthesis) and Heterotrophic
- Respiration: Aerobic (with O₂) and Anaerobic (without O₂)
- Transportation: Blood circulatory system in humans, xylem/phloem in plants
- Excretion: Kidney function, nephron structure, dialysis
- Control and Coordination: Nervous system, hormones, reflex action
| Process | Equation | Site |
|---|---|---|
| Photosynthesis | 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ | Chloroplast |
| Aerobic Respiration | C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + ATP | Mitochondria |
| Anaerobic (Yeast) | C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂ + Energy | Cytoplasm |
| Anaerobic (Muscle) | C₆H₁₂O₆ → 2C₃H₆O₃ + Energy | Cytoplasm |
Heredity and Evolution#
- Gene: Unit of heredity, segment of DNA
- Allele: Alternative form of a gene
- Genotype: Genetic makeup (e.g., TT, Tt, tt)
- Phenotype: Observable trait (e.g., tall, short)
- Dominant/Recessive: T/t notation
Parents: TT (tall) × tt (short) F₁: All Tt (tall) F₂: TT : Tt : tt = 1 : 2 : 1 (genotype), 3 : 1 (phenotype)
Practice Punnett squares for monohybrid and dihybrid crosses. Understand Mendel's laws: Law of Dominance, Law of Segregation, Law of Independent Assortment.
Environment and Ecosystem#
- Producers: Green plants (autotrophs)
- Consumers: Herbivores, carnivores, omnivores
- Decomposers: Bacteria, fungi (saprotrophs)
- Food Chain: Producer → Primary → Secondary → Tertiary consumer
- Energy Transfer: Only 10% energy transfers to next level (10% Law)
Practical Exam Preparation#
The practical exam carries 25 marks and includes:
| Experiment | Marks | Key Points |
|---|---|---|
| Physics: Ohm's Law / Focal length | 5 | Graph, calculation, precautions |
| Chemistry: Salt analysis / Titration | 5 | Observations, inference, balanced equation |
| Biology: Slide preparation / Experiment | 5 | Diagram, labeling, function |
| Viva Voce | 5 | Questions from all three branches |
| Practical Record | 5 | Complete, neat, signed by teacher |
30-Day Revision Plan#
| Days | Focus | Daily Target |
|---|---|---|
| 1-5 | Physics: Force, Pressure, Energy | 2 chapters + 10 numericals |
| 6-10 | Physics: Heat, Light, Electricity | 2 chapters + 10 numericals |
| 11-15 | Chemistry: Classification, Reactions, Acids | 2 chapters + equations |
| 16-20 | Chemistry: Metals, Carbon Compounds | 2 chapters + equations |
| 21-25 | Biology: Life Processes, Heredity | 2 chapters + diagrams |
| 26-28 | Biology: Environment + Full Revision | All chapters |
| 29-30 | Mock Tests + Previous Year Papers | 2 full tests |
Recommended Resources#
- CDC Class 10 Science Textbook — Primary resource
- SEE Science Guide Books — For additional practice
- Previous 5 Years Question Papers — Most important for pattern
- Practical Record Book — For practical exam
- Online: CDC official website for syllabus and model questions
Final Exam Day Strategy#
Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less.
Conclusion#
SEE Science is a subject where consistent effort yields excellent results. The key is understanding concepts rather than rote memorization, practicing numerical problems daily, and mastering diagram drawing. With the structured approach outlined in this guide, regular practice, and a positive mindset, scoring 90%+ in SEE Science is absolutely achievable.
Start your preparation today, follow the revision plan, and trust the process. Best of luck for your SEE 2026 Science examination!
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