Frankenstein’s lab? Alien testing? Despite the dramatic faces seen below, no children were harmed in the making of these photos! This was simply another fun experiment on the topic of electricity. This week the second graders learned about energy generated by chemical reaction. The acids in the lemon react with the metal in the wires. When the wires are touched lightly to the tongue, a very small electrical spark can be felt. It is very subtle and results in a mild tingling sensation. Many students were able to feel it; some were not. Either way, the experiment generated a lot of excitement!