Animations you can control
Interactive 3D science animations
These aren’t videos. Each 3D animation is a live simulation: pause it, turn it round, zoom in and change what happens. Watch a heart beat from the inside, a neuron fire, planets orbit the Sun and ions drift through an electrolysis cell, then open the lab and run it yourself.
أحياء 3D animations
Beating heart and blood flowA real anatomical heart beats while blood cells travel through the four chambers, the valves snap shut and the ECG draws itself.Change it: Cut it open, set the heart rate, follow one blood cell round the body.افتح القلب & الدورة الدموية →
The brain and a nerve impulseSignals light up the visual cortex, Broca’s area and the brain stem; a neuron fires and neurotransmitter crosses the synapse.Change it: Pull the lobes apart, switch off the myelin, stimulate below and above threshold.افتح Brain & Neurons →
Mitosis and meiosisChromosomes copy, line up and are pulled apart by the spindle; in meiosis they cross over.Change it: Step through each phase at your own speed.افتح انقسام الخلية: الانقسام الفتيلي & الانقسام المنصّف →
DNA unzipping and protein synthesisThe double helix unzips, mRNA is copied and ribosomes build a protein, one amino acid at a time.Change it: Change the bases and watch the protein change.افتح صانع الدنا →
Enzyme lock and keySubstrates fit into active sites and split; heat makes the folded protein unravel.Change it: Drop substrates in by hand, change temperature and pH.افتح مختبر الإنزيمات →
Osmosis in a red blood cellWater molecules cross the membrane and the cell swells, bursts or shrivels.Change it: Change the salt concentration.افتح الانتشار & التناضح →
Photosynthesis bubblesPondweed gives off oxygen bubbles faster as the lamp comes closer.Change it: Move the lamp, change CO₂ and temperature.افتح البناءية الخل والتنفس →
Pollination by a beeA bee carries pollen between flowers; a pollen tube grows and seeds form.Change it: Fly the bee yourself.افتح Pollination →
كيمياء 3D animations
ElectrolysisIons drift to the electrodes, copper plates the cathode and gas bubbles form on the electrodes and rise into the tubes.Change it: Change the solution and the voltage, follow one ion.افتح Electrolysis →
Chemical reactions in a beakerReal reactions fizz, change colour, precipitate and burn, with the balanced equation for each.Change it: Pour and mix any chemicals, heat them, carry test tubes.افتح مختبر الكيمياء →
States of matterParticles vibrate in ice, slide in water and fly apart in steam while the heating curve draws itself.Change it: Heat and cool it.افتح States of Matter →
Exothermic and endothermic reactionsMolecules collide over an activation energy hill; the solution warms or cools.Change it: Add a catalyst, change the temperature.افتح Chemical Energetics →
Atomic structureProtons, neutrons and electron shells build any of the 118 elements.Change it: Add and remove particles, make ions and isotopes.افتح صانع الذرات →
Nuclear fusion in the SunHydrogen nuclei collide in a hot plasma and fuse into helium, releasing energy.Change it: Raise the temperature until fusion starts.افتح الاندماج النووي →
فيزياء 3D animations
Planets in orbitA real gravity simulation: planets trace ellipses, speed up near the Sun and sweep equal areas in equal times.Change it: Grab and fling planets, add a second sun.افتح Gravity & Orbits →
Collisions on a snooker tableBalls collide and share momentum; arrows show it is conserved every time.Change it: Aim and shoot, change the masses and bounciness.افتح مُتَماصّات & تصادُمات →
Waves and soundWaves travel along a rope, sound spreads through air and a guitar string vibrates.Change it: Change frequency and amplitude, and listen.افتح Waves & Sound →
A swinging pendulumA pendulum swings in 3D while its period is timed and graphed.Change it: Change the length, mass and planet.افتح مختبر البندول →
Light through lensesRays bend through lenses and reflect off mirrors to form real and virtual images.Change it: Move the object and the lens.افتح العدسات & الضوء →
Current in a circuitCharges flow round the wires and bulbs glow brighter or dimmer.Change it: Build the circuit yourself.افتح صانع الدوائر →
Why animations you can change work better
A video shows one experiment once. A simulation lets you ask “what if?”: what if the heart beats faster, the planet moves slower, the enzyme gets hotter? Changing one thing and watching the result is how scientists test ideas, and it is the quickest way to understand cause and effect. Every animation here also has a guided tour and a quiz.
