Please respond if your good at making up riddle's and science! {e-mail removed} I know its not a question but I really need help! And ill send you the question if you respond please I need the answer tonight!

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Hm... are you planning to have a list to ask children? What is the range of their age, so that I don't end up with too hard of riddles ;)

But I think I can make up some riddles.

I'm not planning to make a list for the children. There ages are 13-14 years old 8th grade. And I only need 2 or 3 riddles! That's all. Can you help me by chance?

Hmm okay, I have some general knowledge questions too if you want. I've been thinking about this one for a while:

What gas is enjoyable, when present in a drink, but not as enjoyable in your lungs?
Ans: Carbon dioxide (fizzy drinks, and it's not useful for your body so to say because it is a by-product of respiration)

I am invisible, I can generate electricity or make certain objects move on their own. I am all over the Earth, and help people find their way. Who am I?
Ans: Magnetic field (or Magnetism)

Going to think of more later :)

Thanks you great at riddles! Thanks so much!