Energy
Map
Arrows point from what you learn first to what it opens. Point at a concept to light up its chain and where it comes back deeper. Right-click a concept (or press and hold it) for its lessons and stories.
- Proven to depth123
- Open
- Locked
- Comes back deeper
Learning path
In the order the concepts build on each other.
- EnergyReadyEnergy is what it takes to make anything happen: to move something, warm it, light it or make a sound. We get ours from food; machines get theirs from electricity or burning fuel. Energy comes in forms: motion, heat, light, sound and electrical energy.
- Energy transformationLockedEnergy doesn't disappear when it is used: it changes from one form into another. Rubbing your hands turns motion into heat, a lamp turns electrical energy into light and some heat, and a car turns the heat of burning fuel into motion.Opens after: Energy
- Energy resourcesLockedWe get energy from the Sun, the wind, flowing water and fuels like oil, petrol and natural gas. The Sun is the biggest source, clean and lasting. Fuels are limited, will one day run out and pollute the air when burned, so we should not waste energy.Opens after: Energy transformation
Connections to other domains
- Energy leads to Electric circuitsElectricity