Entry 18: Reflective Time for Science (Light Energy)

I see people reading below the street lamp beside my house, i see vehicles using their headlights, below my house there is a carpark and it has lights to help drivers see, the lift lobby also has lights and i think it is also to help other people see, inside the lift there is also lights to help people see inside it.
I use light to do my homework, my mother uses it to read letters, my brother uses it to play games.
I think life would be very dark if there is no light, it will be hard to find your way and you won't be able to read.