How Do You Make A Saltwater Battery For A Science Project?
Technology for electricity has evolved over time, but the basic principles of positive and negative charges can be demonstrated by creating a simple battery with supplies around the house and from a small electronics or home improvement store. Also known as an air battery, a saltwater battery uses the positive and negative ions from salt in water to generate a small amount of energy, enough to power a small, low voltage light bulb. Metal electrodes can be fashioned from metal nails that are long enough to extend past the water line of the solution. Position your light bulb base at one end of the wooden board, leaving room on the other end for the ceramic cup. Secure the light bulb base by attaching screws to the base and tightening with a screwdriver. Do not drive the screws flush into the base; instead, leave the top of the screws exposed so that you can attach alligator clips. Insert the light bulb into the base and twist gently to tighten. Place one teaspoon of salt in the ceramic c
