Energy—How Things Work — Important Questions

Fan, Light bulb, Television

Fan, light bulb, and television all need electricity to work. A wooden chair does not need electricity as it is just furniture.

Solar energy, Wind energy, Water energy

Solar, wind, and water energy are clean sources because they don't create pollution. Coal creates smoke and harmful gases when burned.

Wind

Wind energy makes the pinwheel rotate. When you hold it in the wind or run with it, the moving air pushes the pinwheel and makes it spin.

Vibrating rubber bands

When you pluck the rubber bands, they vibrate and produce sounds. This shows how vibration creates sound energy.