All grades
12
Class 12 — NCERT

Advanced Senior Secondary

Electricity, Electrochemistry, Optics & Biotechnology

96.6%

NCERT coverage

46

Direct matches

39

Semi matches

18

Sensors used

37

Chapters

Sensors used in Class 12

Static Charge SensorVoltage ProbeCurrent ProbeTemperature ProbeMagnetic Field SensorForce SensorLight/Color SensorSpectroVis PlusRadiation MonitorConductivity ProbeGas Pressure SensorO2 Gas SensorpH SensorCO2 Gas SensorNoneHeart Rate MonitorSpirometerDissolved Oxygen Probe
Ch.1
Physics

Electric Charges and Fields

Coulomb's law, electric charge, conservation/quantisation, electric field, field lines, Gauss's law, electric dipole, Van de Graaff generator

1

activities

Electrostatics (Physics with Vernier)

Measure static charge on objects after rubbing — chapter covers charging by friction, gold-leaf electroscope, charge quantisation

Static Charge Sensor
Semi
Ch.2
Physics

Electrostatic Potential and Capacitance

Electric potential, equipotential surfaces, capacitance, parallel plate capacitor, energy stored in capacitor, dielectrics

1

activities

Capacitor Charge and Discharge

Measure voltage across capacitor during charge/discharge — exponential curves; chapter covers energy stored E=½CV²

Voltage Probe
Direct
Ch.3
Physics

Current Electricity

Ohm's law, resistance, resistivity, temperature coefficient, V-I characteristics, Kirchhoff's laws, Wheatstone bridge, meter bridge, potentiometer, Joule heating

5

activities

Ohm's Law (Physics with Vernier)

Measure V vs I for resistors — verify Ohm's law; chapter explicitly describes V-I measurement and Ohmic/non-Ohmic conductors

Voltage ProbeCurrent Probe
Direct

Series and Parallel Circuits (Physics with Vernier)

Measure V and I in series/parallel — verify Kirchhoff's laws; chapter covers junction and loop rules

Voltage ProbeCurrent Probe
Direct

Electrical Energy: Joule Heating

Measure temperature rise from current through resistor — verify P=I²R; chapter covers Joule heating and power dissipation

Voltage ProbeCurrent ProbeTemperature Probe
Direct

Temperature Coefficient of Resistance

Measure resistance vs temperature for metals/semiconductors — chapter discusses α for nichrome, metals, and semiconductors

Voltage ProbeCurrent ProbeTemperature Probe
Direct

EMF and Internal Resistance of a Cell

Measure terminal voltage vs current — find EMF and r; chapter explicitly describes potentiometer method for internal resistance

Voltage ProbeCurrent Probe
Direct
Ch.4
Physics

Moving Charges and Magnetism

Oersted's experiment, Lorentz force, Biot-Savart law, Ampere's law, solenoid field B=µ₀nI, force between parallel wires, galvanometer, cyclotron

3

activities

Magnetic Field of a Solenoid/Coil

Measure B inside solenoid vs current and position — chapter derives B = µ₀nI for solenoid

Magnetic Field Sensor
Direct

Magnetic Field vs Distance from Wire

Measure B at various distances from current-carrying wire — verify Biot-Savart law B = µ₀I/2πr

Magnetic Field SensorCurrent Probe
Direct

Force on a Current-Carrying Conductor in B Field

Measure force on wire in magnetic field — verify F = BIl; chapter discusses force between parallel wires

Force SensorMagnetic Field Sensor
Semi
Ch.5
Physics

Magnetism and Matter

Bar magnet as dipole, magnetic field lines, Earth's magnetism, dia/para/ferromagnetism, Curie temperature, hysteresis

2

activities

Mapping Magnetic Field of a Bar Magnet

Measure B at axial and equatorial points — chapter describes iron filings pattern and field mapping

Magnetic Field Sensor
Direct

Earth's Magnetic Field Component

Measure horizontal component of Earth's field — chapter discusses Earth's magnetic elements

Magnetic Field Sensor
Semi
Ch.6
Physics

Electromagnetic Induction

Faraday's law (EMF = -NdΦ/dt), Lenz's law, motional EMF, self/mutual inductance, AC generator, energy in inductor

3

activities

Faraday's Law of Induction (Physics with Vernier)

Push magnet through coil, measure induced EMF — chapter describes 3 experiments with galvanometer showing induced current

Voltage ProbeMagnetic Field Sensor
Direct

AC Generator Output

Rotating coil in B field — capture sinusoidal EMF waveform; chapter derives ε = NBAω sin(ωt)

Voltage Probe
Direct

Inductance: Back EMF

Measure back EMF in inductor during current change — chapter covers self-inductance and energy stored ½LI²

Voltage ProbeCurrent Probe
Semi
Ch.7
Physics

Alternating Current

AC voltage/current, rms values, phasors, R/L/C circuits, impedance, LCR resonance, Q factor, power factor, transformers

3

activities

AC Circuits: Phase Relationships (Physics with Vernier)

Measure V and I phase in R, L, C circuits — chapter shows current lags voltage in L, leads in C

Voltage ProbeCurrent Probe
Direct

LCR Resonance Circuit

Vary frequency, measure current amplitude — plot resonance curve; chapter derives ω₀ = 1/√LC

Voltage ProbeCurrent Probe
Direct

Transformer Turns Ratio

Measure input/output voltage of step-up/step-down transformer — verify Vs/Vp = Ns/Np

Voltage Probe
Direct
Ch.8
Physics

Electromagnetic Waves

Displacement current, Maxwell's equations, EM wave properties, EM spectrum (radio to gamma), Hertz's experiment, speed of light c

1

activities

Infrared Radiation Detection

Detect IR radiation using temperature sensor — chapter discusses infrared as heat waves; practical demo of EM spectrum

Temperature ProbeLight/Color Sensor
Semi
Ch.9
Physics

Ray Optics and Optical Instruments

Reflection (mirrors), refraction (Snell's law), TIR, thin lens formula, prism dispersion, microscope, telescope, human eye defects

2

activities

Light Intensity: Inverse Square Law

Measure light intensity vs distance — verify I ∝ 1/r²; chapter discusses ray optics with lenses and mirrors

Light/Color Sensor
Semi

Refraction and Total Internal Reflection

Measure light intensity through different media — chapter covers critical angle and optical fibre applications

Light/Color Sensor
Semi
Ch.10
Physics

Wave Optics

Huygens' principle, Young's double slit (fringe width β=λD/d), single slit diffraction, polarisation, Malus' law, Brewster's law

2

activities

Polarisation: Malus's Law (Physics with Vernier)

Rotate polaroid, measure I vs angle — verify I = I₀cos²θ; chapter describes quantitative polarisation experiment

Light/Color Sensor
Direct

Interference and Diffraction Patterns

Measure intensity across interference fringes — chapter derives fringe width β = λD/d for YDSE

Light/Color Sensor
Semi
Ch.11
Physics

Dual Nature of Radiation and Matter

Photoelectric effect, work function, stopping potential, Einstein's equation eV₀=hν-φ₀, Planck's constant, de Broglie wavelength, Davisson-Germer

1

activities

Photoelectric Effect Simulation

Measure photocurrent and stopping potential — chapter describes evacuated tube apparatus with voltmeter and microammeter

Voltage ProbeCurrent ProbeLight/Color Sensor
Semi
Ch.12
Physics

Atoms

Thomson/Rutherford models, α-scattering, Bohr model En=-13.6/n² eV, hydrogen spectral series, Rydberg constant

1

activities

Hydrogen Emission Spectrum

Observe Balmer series lines (656, 486, 434, 410 nm) — chapter details spectral series with energy level transitions

SpectroVis Plus
Semi
Ch.13
Physics

Nuclei

Nuclear composition, mass defect, binding energy curve, radioactivity (α/β/γ decay), decay law N=N₀e^(-λt), half-life, fission/fusion

2

activities

Radioactive Decay: Half-Life (Physics with Vernier)

Measure count rate vs time — verify exponential decay law; chapter derives N = N₀e^(-λt) and t½ = 0.693/λ

Radiation Monitor
Direct

Radiation Shielding

Measure radiation through different materials — chapter discusses α, β, γ penetrating powers

Radiation Monitor
Semi
Ch.14
Physics

Semiconductor Electronics

Energy bands, p-n junction, diode V-I characteristics, Zener diode, rectifiers, LED, photodiode, solar cell, transistor, logic gates

5

activities

Diode V-I Characteristics (Physics with Vernier)

Measure forward/reverse bias current vs voltage — chapter explicitly describes circuit with ammeter/voltmeter for V-I curve

Voltage ProbeCurrent Probe
Direct

Rectifier Circuits: Half-Wave and Full-Wave

Observe input AC and output DC waveform with/without capacitor filter — chapter gives full circuit diagrams

Voltage Probe
Direct

Zener Diode Voltage Regulation

Measure regulated output voltage — chapter describes Zener diode as voltage regulator with circuit

Voltage ProbeCurrent Probe
Direct

LED and Photodiode Response

LED forward voltage/light output and photodiode current vs illumination — chapter covers both special-purpose diodes

Voltage ProbeCurrent ProbeLight/Color Sensor
Direct

Transistor Characteristics (CE Configuration)

Measure IC vs VCE for different IB — compute current gain β; chapter provides full CE characteristic procedure

Voltage ProbeCurrent Probe
Direct
Ch.15
Chemistry

Solutions

Concentration units, Henry's law, Raoult's law, colligative properties (ΔTb, ΔTf, osmotic pressure), Van't Hoff factor

3

activities

Freezing Point Depression (Chemistry with Vernier)

Measure freezing point of pure water vs solution — compute ΔTf and molar mass; chapter derives ΔTf = Kf × m × i

Temperature Probe
Direct

Boiling Point Elevation

Measure boiling point of pure solvent vs solution — chapter derives ΔTb = Kb × m

Temperature Probe
Direct

Conductivity of Electrolyte Solutions

Compare conductivity of different concentrations — relates to Van't Hoff factor and degree of dissociation

Conductivity Probe
Semi
Ch.16
Chemistry

Electrochemistry

Galvanic cells, Daniell cell, Nernst equation, electrode potentials, Kohlrausch's law, molar conductivity, Faraday's laws, batteries, fuel cells, corrosion

4

activities

Galvanic Cell EMF: Nernst Equation (Chemistry with Vernier)

Build Zn-Cu cell at various concentrations — verify E = E° - (RT/nF)lnQ; chapter describes SHE and standard potentials

Voltage Probe
Direct

Molar Conductivity vs Concentration

Measure Λm at different concentrations — plot Kohlrausch variation; chapter gives method using Wheatstone bridge/conductivity cell

Conductivity Probe
Direct

Electrolysis: Faraday's Law

Electrolyse CuSO₄, measure charge passed and mass deposited — verify m = (M×I×t)/(n×F); chapter covers electrolysis of multiple solutions

Voltage ProbeCurrent Probe
Direct

Corrosion Rate Study

Monitor potential of iron in different solutions — chapter discusses corrosion as electrochemical process

Voltage ProbeTemperature Probe
Semi
Ch.17
Chemistry

Chemical Kinetics

Rate law, order of reaction, integrated rate equations (0th/1st order), half-life, Arrhenius equation, activation energy, collision theory

3

activities

Rate of Reaction: Concentration Effect (Chemistry with Vernier)

Monitor KMnO₄ decolourisation or gas evolution vs time — chapter gives concentration-time data for N₂O₅ decomposition

SpectroVis PlusGas Pressure Sensor
Direct

Activation Energy: Temperature Effect (Chemistry with Vernier)

Measure rate at two temperatures — compute Ea from Arrhenius equation; chapter derives ln(k₂/k₁) = Ea/R(1/T₁ - 1/T₂)

Temperature ProbeSpectroVis Plus
Direct

First-Order Kinetics: H₂O₂ Decomposition

Monitor O₂ pressure from H₂O₂ decomposition — verify first-order: ln[R] = ln[R₀] - kt

Gas Pressure SensorO2 Gas Sensor
Direct
Ch.18
Chemistry

The d- and f-Block Elements

Transition metals, variable oxidation states, coloured ions, KMnO₄/K₂Cr₂O₇ redox chemistry, catalytic properties, magnetic properties

3

activities

Colorimetry: Transition Metal Ion Colours

Measure absorbance of coloured transition metal solutions — chapter lists colours of all first-row d-block ions

SpectroVis Plus
Direct

KMnO₄ Redox Titration

Track KMnO₄ decolourisation quantitatively — chapter describes oxidation reactions in acidic/alkaline/neutral media

SpectroVis PlusVoltage Probe
Direct

Catalytic Decomposition of H₂O₂

MnO₂ catalyses H₂O₂ decomposition — measure O₂ evolved and temperature; chapter discusses MnO₂ as catalyst

Temperature ProbeO2 Gas Sensor
Semi
Ch.19
Chemistry

Coordination Compounds

Werner's theory, ligands, coordination number, IUPAC nomenclature, isomerism, crystal field theory, spectrochemical series, colour/magnetism

2

activities

Spectrophotometry of Complex Ions (Chemistry with Vernier)

Measure absorption spectrum of [Ti(H₂O)₆]³⁺ at 498 nm — chapter uses this as textbook example of d-d transition and colour

SpectroVis Plus
Direct

Conductometric Analysis of Coordination Compounds

Compare conductivity of ionisation isomers — chapter discusses Werner's primary vs secondary valence and ion count in solution

Conductivity Probe
Semi
Ch.20
Chemistry

Haloalkanes and Haloarenes

SN1/SN2, elimination reactions, Grignard reagent, optical activity, Walden inversion, nucleophilic substitution, environmental impact of CFCs

2

activities

Conductometric Monitoring of SN1 Reaction

SN1 produces ions — monitor conductivity increase over time; chapter discusses SN1 carbocation mechanism

Conductivity ProbeTemperature Probe
Semi

Crystal Violet Fading: SN1 Model Reaction

Track colour fading as model for SN1 kinetics — connects to rate law and order of reaction concepts

SpectroVis Plus
Semi
Ch.21
Chemistry

Alcohols, Phenols and Ethers

Classification (1°/2°/3°), H-bonding and boiling points, acidity (phenol > alcohol > water), esterification, oxidation, fermentation, Lucas test

3

activities

pH of Alcohols vs Phenols

Compare pH of phenol, ethanol, water solutions — chapter gives pKa values: phenol ~10 vs ethanol ~16

pH Sensor
Direct

Fermentation: CO₂ Production

Yeast fermentation of sugar → ethanol + CO₂ — chapter discusses industrial ethanol by fermentation

CO2 Gas SensorTemperature Probe
Direct

Oxidation of Alcohols with KMnO₄

Track KMnO₄ decolourisation as 1° alcohol → aldehyde → acid — chapter covers oxidation pathways for 1°/2°/3° alcohols

SpectroVis Plus
Semi
Ch.22
Chemistry

Aldehydes, Ketones and Carboxylic Acids

Carbonyl chemistry, nucleophilic addition, Tollens'/Fehling's tests, aldol condensation, carboxylic acid acidity, esterification, iodoform test

3

activities

Carboxylic Acid Strength: pH Comparison

Measure pH of acetic, chloroacetic, trichloroacetic acid — chapter gives pKa: acetic 4.75, chloroacetic 2.86, trichloroacetic 0.7

pH Sensor
Direct

Acid-Base Titration of Carboxylic Acid

Titrate acetic acid with NaOH — find equivalence point and Ka; chapter covers acid strength and substituent effects

pH Sensor
Direct

Tollens's Test: Colorimetric

Monitor silver mirror formation — aldehyde vs ketone distinction; chapter describes Tollens and Fehling tests in detail

SpectroVis Plus
Semi
Ch.23
Chemistry

Amines

Classification (1°/2°/3°), basicity (pKb), Hinsberg test, diazotisation at 0-5°C, azo dyes, carbylamine test

2

activities

Amine Basicity: pH Comparison

Measure pH of methylamine, aniline, ammonia solutions — chapter gives pKb: aniline 9.4, ethylamine 3.3, NH₃ 4.7

pH Sensor
Direct

Azo Dye Formation: Colorimetry

Diazotise aniline at 0-5°C, couple with phenol — track colour development; chapter describes diazonium coupling reactions

SpectroVis PlusTemperature Probe
Semi
Ch.24
Chemistry

Biomolecules

Carbohydrates (glucose, fructose, sucrose, starch), reducing sugars, amino acids, proteins, enzymes, DNA/RNA, vitamins, lipids

4

activities

Reducing Sugar Test: Fehling's/Benedict's (Chemistry with Vernier)

Test glucose, fructose, sucrose — chapter specifies glucose/maltose/lactose are reducing; sucrose is NOT

SpectroVis PlusTemperature Probe
Direct

Starch-Iodine Test

Measure blue-black colour intensity with starch + I₂ — chapter describes starch detection and amylose structure

SpectroVis Plus
Direct

Enzyme Activity: Temperature/pH Optimum

Measure enzyme reaction rate at different T and pH — chapter discusses enzyme denaturation, optimum ~37°C

Temperature ProbepH Sensor
Direct

Protein Denaturation

Heat egg albumin — observe/measure turbidity change; chapter discusses denaturation by heat, acid, heavy metals

Temperature ProbeSpectroVis Plus
Semi
Ch.25
Biology

Sexual Reproduction in Flowering Plants

Flower structure, microsporogenesis, megasporogenesis, pollination, double fertilisation, seed/fruit formation, pollen germination

2

activities

Pollen Germination: Temperature Effect

Measure pollen tube growth at different temperatures — chapter describes pollen germination in 10% sugar solution

Temperature Probe
Semi

Seed Germination: O₂ Consumption

Measure respiration of germinating seeds — chapter discusses seed viability and moisture content 10-15%

O2 Gas SensorCO2 Gas Sensor
Semi
Ch.26
BiologyTheory only

Human Reproduction

Male/female reproductive systems, spermatogenesis, oogenesis, menstrual cycle, fertilisation, embryonic development, placenta, parturition

0

activities

Anatomy and developmental biology chapter — no direct sensor-based experiments applicable at school level

Ch.27
BiologyTheory only

Reproductive Health

Population growth, contraception, STIs, infertility treatments (IVF, ZIFT), amniocentesis

0

activities

Public health and policy chapter — no direct sensor-based experiments

Ch.28
BiologyTheory only

Principles of Inheritance and Variation

Mendelian genetics, monohybrid/dihybrid crosses, incomplete dominance, co-dominance, sex-linked inheritance, chromosomal disorders

0

activities

Theoretical genetics chapter — involves pedigree analysis and probability, not sensor-based measurements

Ch.29
Biology

Molecular Basis of Inheritance

DNA structure (double helix, 0.34 nm/bp), replication, transcription, translation, genetic code, lac operon, HGP, DNA fingerprinting, gel electrophoresis

2

activities

Gel Electrophoresis: Buffer Conductivity

Measure buffer conductivity for electrophoresis — chapter describes agarose gel separation of DNA fragments

Conductivity Probe
Semi

PCR Temperature Cycling Demonstration

Monitor temperature changes simulating PCR — chapter gives denaturation 95°C, annealing 55°C, extension 72°C

Temperature Probe
Semi
Ch.30
Biology

Evolution

Chemical evolution, Miller-Urey experiment, natural selection, Hardy-Weinberg, adaptive radiation, human evolution, fossils, radioactive dating

1

activities

Simulated Prebiotic Chemistry

Model conditions of Miller-Urey experiment — chapter describes CH₄, H₂, NH₃, water vapour at 800°C with electric discharge

Temperature ProbeGas Pressure Sensor
Semi
Ch.31
Biology

Human Health and Disease

Pathogens, typhoid (39-40°C), pneumonia, malaria, immune system, AIDS, cancer, drugs/alcohol, blood pH 7.4

3

activities

Body Temperature and Fever

Monitor body temperature changes — chapter gives typhoid fever sustained at 39-40°C vs normal baseline

Temperature Probe
Semi

Effect of Exercise on Heart Rate and Breathing

Monitor physiological responses — chapter discusses adrenaline effects on HR, BP, and respiration

Heart Rate MonitorSpirometerCO2 Gas Sensor
Semi

Microbial Growth Curve

Measure bacterial turbidity (OD) over time — relates to pathogen growth discussed in chapter

SpectroVis PlusTemperature Probe
Semi
Ch.32
Biology

Microbes in Human Welfare

Fermentation (yeast, LAB, cheese), antibiotics, sewage treatment (BOD), biogas, biofertilisers, biocontrol

4

activities

Yeast Fermentation: CO₂ Production (Biology with Vernier)

Monitor CO₂ from yeast + sugar — chapter discusses bread dough, beer, wine fermentation with CO₂ release

CO2 Gas SensorTemperature Probe
Direct

Lactic Acid Fermentation: pH Change

Milk → curd: monitor pH drop (~6.5 to ~4.5) — chapter describes LAB converting lactose to lactic acid

pH SensorTemperature Probe
Direct

BOD Measurement: Dissolved O₂

Measure O₂ consumption in water samples — chapter gives BOD values: raw sewage ~400 mg/L, treated ~20 mg/L

Dissolved Oxygen Probe
Direct

Biogas Production Monitoring

Measure gas pressure from anaerobic digestion — chapter describes biogas plant with methanogens producing CH₄+CO₂+H₂S

Gas Pressure SensorTemperature Probe
Semi
Ch.33
Biology

Biotechnology: Principles and Processes

Restriction enzymes, gel electrophoresis, cloning vectors (pBR322), PCR, bioreactors, recombinant DNA technology, blue-white screening

2

activities

Bioreactor pH and Temperature Monitoring

Monitor bioreactor conditions — chapter describes large-scale culture with controlled temperature, pH, O₂ supply

pH SensorTemperature ProbeDissolved Oxygen Probe
Semi

DNA Extraction and Quantification

Measure DNA concentration via absorbance — chapter covers ethidium bromide staining and UV visualisation of DNA bands

SpectroVis Plus
Semi
Ch.34
Biology

Biotechnology and its Applications

GM crops (Bt cotton), RNAi, insulin production, gene therapy, ELISA, PCR diagnostics, transgenic animals, bioethics

2

activities

ELISA: Colorimetric Detection

Measure absorbance of ELISA plate — chapter describes antigen-antibody detection with colour development

SpectroVis Plus
Semi

Bt Toxin and pH Activation

Demonstrate pH effect on protein activity — chapter states Bt toxin activates in alkaline insect gut

pH Sensor
Semi
Ch.35
Biology

Organisms and Populations

Population density, exponential growth (dN/dt=rN), logistic growth (K carrying capacity), interspecific interactions, ecological niche

2

activities

Water Quality: Dissolved O₂ and pH

Measure DO, pH, temperature of pond water — chapter discusses abiotic factors affecting population distribution

Dissolved Oxygen ProbepH SensorTemperature Probe
Semi

Population Growth: Yeast Culture

Track yeast population by turbidity over time — model logistic growth with carrying capacity K

SpectroVis PlusTemperature Probe
Semi
Ch.36
Biology

Ecosystem

Primary productivity (GPP/NPP), decomposition, energy flow (10% law), ecological pyramids, nutrient cycling (C/P cycle), ecosystem services

4

activities

Primary Productivity: Light/Dark Bottle (Biology with Vernier)

Measure DO in light vs dark bottles — compute GPP, NPP, respiration; chapter defines NPP = GPP - R

Dissolved Oxygen Probe
Direct

Decomposition Rate: CO₂ Evolution

Measure CO₂ from decomposing leaf litter at different temperatures — chapter states warm/moist conditions accelerate decomposition

CO2 Gas SensorTemperature Probe
Direct

Soil Respiration

Measure CO₂ from soil samples — mineralisation and nutrient cycling; chapter covers decomposition → humification → mineralisation

CO2 Gas Sensor
Direct

Effect of Light on Aquatic Productivity

Measure O₂ production at different light levels — chapter discusses PAR and 2-10% energy capture by plants

Dissolved Oxygen ProbeLight/Color Sensor
Semi
Ch.37
Biology

Biodiversity and Conservation

Genetic/species/ecosystem diversity, species-area relationship (log S = log C + Z log A), biodiversity hotspots, in situ/ex situ conservation

2

activities

Water Quality Survey: Multi-Parameter

Assess aquatic ecosystem health — DO, pH, conductivity, temperature; chapter discusses ecosystem services and biodiversity-productivity link

Dissolved Oxygen ProbepH SensorTemperature ProbeConductivity Probe
Semi

Forest vs Open: CO₂ and Light Comparison

Compare CO₂ levels, light, temperature in forest canopy vs open — chapter states Amazon produces ~20% of atmospheric O₂

CO2 Gas SensorLight/Color SensorTemperature Probe
Semi

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