Here are 100+ science riddles for you to enjoy! Looking for a science related riddles challenge? Check out our collection of chemistry riddles, physics riddles, biology riddles! They'll make you think and teach you scientific riddles things. Test yourself with this 100+ science riddles with answer. Whether you love science or just want some brain-teasing fun, these riddles are perfect. Put your thinking cap on and get ready to solve the mysteries of the universe, one science riddle at a time!

Chemical symbol for gold 

2. Riddles
What is the chemical symbol for gold? 
    • The chemical symbol for gold is Au. 

Chemical formula for table salt 

4. Riddles
What is the chemical formula for table salt? 
    • The chemical formula for table salt is NaCl (sodium chloride). 

Smallest bone in human body riddle 

5. Riddles
What is the smallest bone in the human body? 
    • The smallest bone in the human body is the stapes bone in the middle ear. 

largest ocean on Earth riddle 

6. Riddles
What is the name of the largest ocean on Earth? 
    • The largest ocean on Earth is the Pacific Ocean. 

Inside and outside your body riddle 

9. Riddles
I can be good for you, I can be bad, I can be found all over inside and outside your body. I am microscopic, single-celled and have no nucleus. 
    • Bacteria 

Chemical symbol for oxygen 

10. Riddles
What is the chemical symbol for oxygen? 
    • The chemical symbol for oxygen is O. 

Smallest particle of an element

11. Riddles
What is the name of the smallest particle of an element? 
    • The name of the smallest particle of an element is an atom.

Cannot be bought at a gas station 

14. Riddles
I am a gas that is helpful to plants, but I cannot be bought at a gas station. What am I? 
    • Carbon dioxide