Home · Library · Simulations · Practice · Curriculum · About Simulations Free interactive simulations for ages 3–11: predict, test and explain. Circuits, plants, forces, the human body in 3D, place value, fractions and more.
Living Things Parts of a Plant – Tap each part of a plant to light it up in its own colour and find out its job.Plant Growth Lab – Give plants more or less water, light and warmth, and watch what happens over days.Seed to Fruit – Plant a seed, water it and watch it grow into a plant that flowers, makes fruit and new seeds.Thirsty Plant – Put a white flower in coloured water and watch the water travel up the stem.Photosynthesis Factory – See how a leaf uses sunlight, water and air to make food and give out oxygen.Flowers & Pollination – Fly a bee from flower to flower to carry pollen and make seeds.Seed Travellers – Launch seeds by wind, water, animals and bursting pods. Which travels farthest?Living or Not? – Check the seven life processes to decide if something is living, non-living or was once alive.Animal Life Cycles – Watch a butterfly, frog, chicken and human grow, and compare their life cycles.Habitat Explorer – Visit aerial, tree, water, ground and underground habitats and find who lives there.Adapt to Survive – Design a creature or plant with the right beak, feet, fur or leaves for its habitat.Sort It Out: Keys – Use yes/no questions to sort and name animals and plants.Food Chain Builder – Drag living things into the right order to show who eats whom, starting with the Sun.Ecosystem Balance – Change the numbers of grass, deer and tigers in a food web and see the whole ecosystem respond.Decomposers & Compost – Speed up time in a compost bin and watch worms, fungi and bacteria recycle waste.Like My Parents – See how young animals and plants are like, but not exactly like, their parents.Inside My Body – Drag the brain, heart, lungs, stomach and other organs to the right place in a body outline.The Skeleton – Explore a 3D skeleton, then play Find It, Match It and Build It.Muscles & Movement – See how muscles pull on bones, and why they work in pairs.Heart & Circulation – Follow a drop of blood through the heart, lungs and body.Breathing – Trace a breath from your nose to your lungs.Digestion – Follow a meal from mouth to rectum.Brain & Nerves – Discover which parts of the brain help you think, move and balance.The Eye – Explore the parts of the eye and how we see.Kidneys – See how the kidneys clean the blood and make urine.Hormones & Defence – An extension sim for older learners: glands, hormones and immune organs.Reproduction (male) – An extension sim for older learners.My Five Senses – Use sight, hearing, smell, taste and touch to explore a mystery box.How We Hear – Follow a sound wave into the ear: outer ear, eardrum, middle ear, cochlea, nerve and brain.Cells to Systems – Zoom from the whole body into an organ system, an organ, a tissue and a single cell.Balanced Plate – Drag foods onto a plate and balance carbohydrates, protein, fats, vitamins, minerals, fibre and water.Germ Busters – See how germs spread and how washing hands, clean water and medicines keep us healthy.My Healthy Day – Plan a day with exercise, rest, sleep and play, and watch your energy meter.Earth & Space Day & Night – Spin the Earth in front of the Sun and see where it is day and where it is night.Sun & Shadows – Move the Sun across the sky and watch a shadow stick change length and direction.Moon Phases – Move the Moon around the Earth and see why it looks different each night.Night Sky & Stars – Watch the stars turn around the Pole Star, make star trails and find the constellations.Why Seasons? – Move the tilted Earth around the Sun and see how sunlight angle and day length change.Solar System Explorer – Fly through the solar system and compare planets, moons, stars, meteors and satellites.Weather Station – Use a thermometer, rain gauge, wind vane and barometer, spot clouds and make a forecast.Cyclone Tracker – See how warm sea water powers a tropical cyclone, then track it and raise the warning signal.The Water Cycle – Heat the sea, make clouds and rain, and follow a water drop all the way round.Landform Builder – Shape a landscape with mountains, valleys, hills, caves, plains and islands.Wind & Water Erosion – Pour water and blow wind over a sand table, then test ways to stop the land washing away.Volcanoes & Earthquakes – Trigger a volcano and an earthquake and compare them with slow changes like erosion.Inside the Earth (3D) – Spin a cut-open 3D Earth, peel away its layers and travel down to the hot metal core.Rocks to Soil – Break rocks into soil, look at soil layers and find the best soil for earthworms and plants.Clean Water Lab – Filter dirty water, turn salt water into drinking water and find ways to save water.Water Treatment Plant – Run a real water treatment plant step by step and turn muddy river water into safe tap water.Waste Sorter – Sort rubbish into compost, recycle, reuse and landfill – and reduce what we throw away.Eco Town – Run a town and see how your choices change the air, rivers, forests and wildlife.Renewable or Not? – Sort Earth’s resources and energy sources by how quickly they can be replaced.Materials & Matter States of Matter – Heat and cool particles and watch them change between solid, liquid and gas.Heating & Cooling Lab – Heat chocolate, ice, an egg and bread, then cool them. Which changes can be undone?Matter Never Disappears – Melt ice and dissolve sugar on a scale – the mass stays the same.Material Detective – Test materials for hardness, bendiness, shine, waterproofing and magnetism, then pick the best one for a job.Squash, Bend, Twist, Stretch – Use your fingers to squash, bend, twist and stretch materials and see which change shape.Air Is Matter – Prove that air takes up space, has mass and can push – with balloons, syringes and parachutes.Dissolve It! – Add sugar, salt, sand and chalk to water, stir and heat. Which ones dissolve?Separate the Mixture – Use a sieve, filter, magnet and evaporation to separate mixtures.Pure or Mixed? – Zoom into particles to sort elements, compounds and mixtures.Atom Explorer – Add protons, neutrons and electrons to see what an atom is made of.Forces & Energy Push & Pull Playground – Push and pull trolleys, balls and boxes to start, stop, turn and squash them.Friction Ramp – Race cars down ramps covered in ice, wood, carpet and sand. Which surface slows them most?Gravity & Weight – Drop things on Earth and the Moon and compare mass (kg) and weight (N).Magnet Lab – See magnets attract and repel, and test which materials are magnetic.Circuit Builder – Drag cells, wires, bulbs, switches, buzzers and motors to build circuits that work.Where Does Electricity Come From? – Power a town with solar, wind, water, gas and coal, and compare them.Energy Transformers – Link a torch, a fan and a kettle to see energy change from one form to another.Heat on the Move – Watch heat travel by conduction, convection and radiation, and keep a drink hot with insulators.Light & Shadows – Move a torch and objects to make shadows grow and shrink, and test transparent, translucent and opaque materials.Mirrors & Bending Light – Bounce laser beams off mirrors and bend them through water.Sound Lab – Pluck, tap and blow to make vibrations, and change pitch and loudness.Simple Machines – Lift heavy loads with levers, pulleys, ramps, gears and wheels.Float or Sink? – Drop objects in water, then design a boat that carries the most cargo.Forces of Flight – Change wings, weight and engine power to balance lift, weight, thrust and drag.Inventions Through Time – Travel through history to see how wheels, water wheels and pulleys changed people’s lives.Mathematics Counting Garden – Count flowers, bugs and stones; see small groups at a glance; find more, fewer and the same; and place numbers on a 0–20 track.Make Ten & Number Bonds – Fill ten frames, split numbers into parts and combine them, and see how adding and taking away undo each other.Place Value Builder – Build numbers with base-ten blocks, swap ten ones for a ten and find many ways to make the same number.Number Line Explorer – Zoom along a number line to place, compare and round numbers – from 0–100 up to thousands, decimals and numbers below zero.Add & Subtract Studio – Add and subtract with base-ten blocks and number-line jumps, watch regrouping happen, and check with the inverse.Multiplication Arrays – Build arrays to see multiplication as rows and columns, turn them round, and discover factors and prime numbers.Sharing & Grouping – Share biscuits fairly or put them into groups, see what is left over, and link division to multiplication.Fraction Explorer – See fractions as bars, circles and points on a number line; compare them and discover equivalent fractions.Area & Perimeter Lab – Draw shapes on a grid, measure area and perimeter, and test whether shapes with the same area have the same perimeter.Angles in Shapes – Drag the corners of triangles and other polygons, measure their angles and find the rule for the angle sum.Chance & Data Lab – Roll dice and spin spinners hundreds of times, graph the results and see chance patterns appear.