What does it take to turn on a light?
Close a switch. Follow a complete path. Give current a second route and discover what changes.
Follow charge, light, blood, water and information through the first collection of everyday experiments.
Close a switch. Follow a complete path. Give current a second route and discover what changes.
Power a motor. Reverse its direction. Add a load and watch speed, current and turning force find a new balance.
Interactive explorationTurn a real anatomical model in your hands. Reveal its chambers, meet the four valves, then follow the blood moving through both sides of the heart.
Interactive explorationMove through a breath, connect space to airflow, then cross the tiny boundary where oxygen enters the blood.
Slide an object toward a lens. Follow the rays, find a sharp image, and discover the moment a camera becomes a magnifier.
Interactive explorationStart with a vibration. Follow air, eardrum, tiny bones and hair cells, then see why the message reaching your brain is a different kind of signal.
Send “SMALL IDEAS!” through a network. Delay a piece, lose another, and watch what the receiver can actually use.
Interactive explorationFollow water above and below the surface. Pave part of the land, change evaporation, and watch the water budget rearrange.
Release a few virtual balls, then a thousand. Change the chance of a right turn and compare the results with a mathematical prediction.
Take these steps at your own pace. Your place is not saved as account progress or scored.