Explain to little brother or sister how neours and synapses work

Answer 1

Do you mean neurons?

Answer 2

One way, is to take the spark device spark device off the bbq pit, let brother hold the wires, and you press the button. You are the neuron, brother is holding the synapse(the device)and brother is the next neuron.
Just kidding, of course. Let bratty sister get the lesson this way.

Then, explain how the device you and sister held represents the synapse.
http://www.youtube.com/watch?v=LT3VKAr4roo