1. What is the largest organ of the human body?

2. Which one of these animals has the highest top speed?
3. What is the biggest member of the mollusk family?
4. What purpose does caffeine serve for the coffee plant?
5. What salt makes fireworks burn blue?
6. Where does more than half of the earth’s oxygen come from? 
7. What space shuttle exploded, shortly after take-off in 1986?
8. What Italian pasta’s name means “little tongues”?
9. Who took the picture of the first man on the moon?
10. What is the hottest planet in our solar system?
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