Energy can be stored in a variety of ways. When you pull back on a slingshot, energy from your muscles (is/are)stored in its elastic bands. When a toy is (winded/wound), energy is stored in (it's/its)spring. Water behind a dam is also considered stored energy. As the water flows downhill (;/,)it can power a water wheel. When it comes to circuits and electronic devices, energy is typically stored in one of two places (-/:)A battery stores energy in chemicals and capacitors store energy in an electric field.