A lemon battery experiment involves the useof a juicy lemon, copper coin and zinc nail to form a lemon battery. When four such lemon batteries are combined, they produce enough voltage to light up an LED (light emitting diode).
In a bottle around 3 quarters full of water, add liquid dish soap. Dust in a little glitter for better visibility. Cap the bottle tightly, turn it upside down and whirl it around in circular motions for a few seconds. Pause your movement to see a tornado