From light to motion

Collect energy from light, store it chemically, carry it through a circuit and turn it into motion.

Interactive exploration

Electricity & EnergySolar panels and photovoltaic cells

Why does a solar panel’s power depend on what you connect?

Connect a realistic module to a virtual load, look inside a silicon cell, and build a day’s energy from changing light and time.

3D model & experimentsExplore at your own pace

#solar#photovoltaics#silicon#electricity

Interactive exploration

Electricity & EnergyBatteries and charging

What happens when you charge your phone?

Look through a phone, separate a battery’s layers, and trace two different journeys. One happens inside the cell. The other powers the world outside.

3D model & experimentsExplore at your own pace

#batteries#lithium-ion#charging#electrons

Interactive exploration

Electricity & EnergyElectric circuits

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.

Interactive model & diagramsExplore at your own pace

#circuits#current#voltage#resistance

Interactive exploration

Machines & MotionElectric motors

How does electricity make a motor spin?

Power a motor. Reverse its direction. Add a load and watch speed, current and turning force find a new balance.

3D cutaway & experimentExplore at your own pace

#motors#magnetism#current#torque

Interactive exploration

Machines & MotionGears and gear ratios

How do gears trade speed for turning force?

Turn once. Count what happens. Discover gear ratios, real-world uses, and why different jobs need different gears.

3D mechanismExplore at your own pace

#gears#bicycle#torque#mechanical-advantage

Take these steps at your own pace. Your place is not saved as account progress or scored.