Cut a lightning bolt out of paper. Build the simple circuit with 2 light bulbs in series. Tape one bulb on the paper lightning bolt. When this light is lit it will indicate that lightning is striking. Make a house out of paper.
Houses tend to be made of wood bricks, etc.
Put the other light bulb on the house. When this light is lit it will indicate that the house has been damaged by lightning. Simulate lightning striking the house by briefly closing the switch. Now protect the house by building a circuit to the light. This circuit must have resistance that is lower than the house so use just a plain wire.