Science true or false quiz

All 10 questions and answers

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1. Sound travels faster in water than in air.
   • True
   • False
   Show answer

   True. It travels about four times faster in water.

2. Lightning never strikes the same place twice.
   • False
   • True
   Show answer

   False. Tall buildings are struck many times a year.

3. Diamonds are made of carbon.
   • True
   • False
   Show answer

   True. So is the graphite in pencils.

4. Bats are blind.
   • False
   • True
   Show answer

   False. Bats can see, and many also use echolocation.

5. Water boils at a lower temperature at high altitude.
   • False
   • True
   Show answer

   True. Lower air pressure lowers the boiling point.

6. Humans use only 10% of their brains.
   • True
   • False
   Show answer

   False. Brain scans show activity across the whole brain.

7. The Great Wall of China is easily visible from the Moon with the naked eye.
   • False
   • True
   Show answer

   False. It's far too narrow to see from that distance.

8. Light from the Sun takes about 8 minutes to reach Earth.
   • False
   • True
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   True. About 8 minutes and 20 seconds.

9. Goldfish have a three-second memory.
   • True
   • False
   Show answer

   False. Studies show they remember things for months.

10. An adult human has more bones than a newborn baby.
    • True
    • False
    Show answer

    False. Babies have around 300 bones, and many fuse together as they grow.