Shiny like a silver, denser than lead,...

Riddle: Kids really love me because I make things float. You can even use me to expand small things. What am I?

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Answer: Helium

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Riddle: I am essential to life on earth! I am split into thirds. Two thirds are the same. One of the thirds is 8. The other two are 1 each. What am I?

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Answer: Water

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Riddle: I catch fire easily but I protect cars in the cold. You can use me as a fuel and yet I am every distiller’s goal. What am I?

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Answer: Ethanol

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Riddle: I may have twice the life-giving gas but I do not give life to you. However, without me, you will never have food. What am I?

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Answer: Carbon Dioxide.

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Riddle: What animal is made up of calcium, nickel and neon?

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Answer: A CaNiNe

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Riddle: What four periodic elements, when combined, make up something that terrifies criminals?

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Answer: Carbon, Oxygen, Phosphorous, and Sulfur (C + O + P + S).

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