Class 9–10 practice

Learn each chapter in its simulator, then answer the practice questions under it. Every lab with practice has 10 questions: the first 3 are free, the rest come with SimuVeda Pro. Answers are checked instantly with a worked explanation.

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Screenshot of Food Web
LiveBeginner

Food Web

Change species populations in a small grassland food web and follow how a change in one species ripples through the others.

Biology · Ecology

Class 6–8 · Class 9–10 · Class 11–12Class 10 Science: Our Environment (food chains and webs); Class 12 Biology: Ecosystem

Launch simulator: Food Web
Screenshot of Genetic Crosses
LiveBeginner

Genetic Crosses

Choose parental alleles for one or two genes, build the Punnett square, and compare expected offspring ratios with a random sample of offspring.

Biology · Evolution & Genetics

Class 9–10 · Class 11–12Class 10 Science: Heredity; Class 12 Biology: Principles of Inheritance and Variation

Launch simulator: Genetic Crosses
Screenshot of Neuron Signals
LiveAdvanced

Neuron Signals

Stimulate a model neuron, change stimulus strength and membrane properties, and watch threshold, action potentials, refractory periods and firing rate.

Biology · Cells & Physiology

Class 9–10 · Class 11–12 · College & beyondClass 10 Science: Control and Coordination; Class 11 Biology: Neural Control and Coordination

Launch simulator: Neuron Signals
Screenshot of Osmosis
LiveIntermediate

Osmosis

Separate two solutions with a semi-permeable membrane, change concentrations and permeability, and watch net water movement and osmotic pressure.

Biology · Cells & Physiology

Class 9–10 · Class 11–12Class 9 Science: The Fundamental Unit of Life (osmosis); Class 12 Chemistry: Solutions (osmotic pressure)

Launch simulator: Osmosis
Screenshot of Photosynthesis
LiveBeginner

Photosynthesis

Adjust light intensity, carbon dioxide and temperature for a leaf, and explore which factor limits the rate of photosynthesis.

Biology · Cells & Physiology

Class 6–8 · Class 9–10 · Class 11–12Class 7 Science: nutrition in plants; Class 10 Science: Life Processes; Class 11 Biology: Photosynthesis in Higher Plants

Launch simulator: Photosynthesis
Screenshot of Acid–Base Titration
LiveIntermediate

Acid–Base Titration

Add base from a burette to an acid, graph the pH curve, and identify the equivalence point, buffer region and a suitable indicator.

Chemistry · Acids & Bases

Class 9–10 · Class 11–12Class 10 Science: Acids, Bases and Salts; Class 11 Chemistry: Equilibrium (ionic)

Launch simulator: Acid–Base Titration
Screenshot of Chromatography
LiveBeginner

Chromatography

Spot a mixture on a strip, change each dye's affinity and the solvent flow, and watch components separate by retention factor.

Chemistry · Separation

Class 6–8 · Class 9–10 · Class 11–12Class 6 Science: separating substances; Class 11 Chemistry: methods of purification

Launch simulator: Chromatography
Screenshot of Molecular Diffusion
LiveBeginner

Molecular Diffusion

Release two gases on either side of a barrier, change temperature and particle count, and compare mixing with random-walk displacement statistics.

Chemistry · Thermochemistry & Mixtures

Class 6–8 · Class 9–10Class 9 Science: Matter in Our Surroundings (diffusion)

Launch simulator: Molecular Diffusion
Screenshot of Solubility
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Solubility

Dissolve salts in water, change temperature and amount, and see when a solution becomes saturated and excess solid remains or crystallises out.

Chemistry · Thermochemistry & Mixtures

Class 9–10 · Class 11–12Class 9 Science: Is Matter Around Us Pure (solutions); Class 12 Chemistry: Solutions

Launch simulator: Solubility
Screenshot of Rainwater Harvesting
LiveBeginner

Rainwater Harvesting

Set rainfall pattern, roof size, tank capacity and daily use, then run a year of daily water balance and track tank level, overflow and shortages.

Earth & Environment · Water & Hydrology

Class 6–8 · Class 9–10Class 10 Geography: Water Resources (rainwater harvesting)

Launch simulator: Rainwater Harvesting
Screenshot of Recycling Systems
LiveBeginner

Recycling Systems

Follow 100 tonnes of packaging through collection, sorting and reprocessing, and see how much becomes new material over repeated cycles.

Earth & Environment · Resources & Waste

Class 6–8 · Class 9–10Class 10 Science: Our Environment (managing waste)

Launch simulator: Recycling Systems
Screenshot of Watershed Runoff
LiveIntermediate

Watershed Runoff

Change storm size and land cover for a small catchment, and compare simplified runoff curves and flood hydrographs with the SCS curve number method.

Earth & Environment · Water & Hydrology

Class 9–10 · College & beyondClass 10 Geography: Water Resources

Launch simulator: Watershed Runoff
Screenshot of Wind Turbine
LiveIntermediate

Wind Turbine

Change wind speed, rotor size, air density and control, and explore turbine power with the cube law, the Betz limit and tip-speed ratio.

Engineering · Energy Systems

Class 9–10 · College & beyondBuilds on Class 9 Science: Work and Energy (kinetic energy)

Launch simulator: Wind Turbine
Screenshot of Monte Carlo Estimation
LiveBeginner

Monte Carlo Estimation

Throw random points to estimate π or the area under a curve, and watch the error shrink with the square root of the sample count.

Mathematics · Probability & Statistics

Class 9–10 · Class 11–12Class 10 Maths: Probability (estimating π with random points)

Launch simulator: Monte Carlo Estimation
Screenshot of Atom Lab
Live

Atom Lab

Build atoms by adding protons, neutrons and electrons, and see how the element, charge and isotope change.

Physics · Atomic & Nuclear, Atomic Structure

Class 9–10 · Class 11–12Class 9 Science: Structure of the Atom; Class 11 Chemistry: Structure of Atom

Launch simulator: Atom Lab
Screenshot of Buoyancy
LiveBeginner

Buoyancy

Drop blocks of different densities into different liquids, predict whether they float and how deep, and see Archimedes' principle balance the forces.

Physics · Fluids

Class 9–10 · Class 11–12Class 9 Science: Gravitation (thrust, buoyancy, Archimedes' principle); Class 11 Physics: Fluids

Launch simulator: Buoyancy
Screenshot of Collisions
LiveBeginner

Collisions

Collide two carts on a track, change their masses, velocities and restitution, and check momentum and kinetic energy before and after.

Physics · Mechanics

Class 9–10 · Class 11–12Class 9 Science: Force and Laws of Motion (momentum); Class 11 Physics: Work, Energy and Power

Launch simulator: Collisions
Screenshot of Geometric Optics
LiveIntermediate

Geometric Optics

Drag an object in front of a thin lens, change the focal length, and trace the principal rays to find the image position, size and type.

Physics · Optics

Class 9–10 · Class 11–12Class 10 Science: Light – Reflection and Refraction; Class 12 Physics: Ray Optics

Launch simulator: Geometric Optics
Screenshot of Magnetic Fields
LiveIntermediate

Magnetic Fields

Place current-carrying wires and coils, and see the magnetic field lines, strength and direction they create, plus forces between parallel wires.

Physics · Electricity & Magnetism

Class 9–10 · Class 11–12Class 10 Science: Magnetic Effects of Electric Current; Class 12 Physics: Moving Charges and Magnetism

Launch simulator: Magnetic Fields
Screenshot of Orbital Motion
LiveIntermediate

Orbital Motion

Launch a satellite around a planet, change its starting speed and direction, and compare circular, elliptical and escape trajectories.

Physics · Mechanics

Class 9–10 · Class 11–12Class 9 Science: Gravitation; Class 11 Physics: Gravitation

Launch simulator: Orbital Motion
Screenshot of Refraction
LiveBeginner

Refraction

Shine a ray between two media, change refractive indices and incidence angle, and find the critical angle and total internal reflection.

Physics · Optics

Class 9–10 · Class 11–12Class 10 Science: Light – Reflection and Refraction; Class 12 Physics: Ray Optics

Launch simulator: Refraction