I have come across watching Ms. Universe 2017 a while ago and have stumbled upon this question. Terrorism is rampant and a hot topic when it come to news and other media,being an elder or a parent, how would you exolain terrorism to a child?
You can't, not by terminology or even through metaphors.
I believe children can't understand what terrorism is all about especially at a young age. Maybe we should tell a child that people have different ideas and beliefs and they always disagree with one another. sometimes people have principles and they prefer to hurt others in order to prove their point and just to satisfy their beliefs. For me, this is the answer i could come up with. Its hard to explain but in due time, a child will eventually understand what you're trying to say.