MindYourLogic

100+ Science Riddles to Test Your Knowledge and Enjoy the Challenge"

About Riddles

61.
Riddles

What Happens When Ice Melts?

A glass is filled with ice cubes and water. When the ice melts, will the water level go up, go down, or stay the same?

Stay the same
62.
Riddles

What Makes the Paper Jump?

A balloon is rubbed on your hair. Then it can make tiny pieces of paper jump toward it. Which force is causing this?

Static electricity
63.
Riddles

A plant has tiny openings on its leaves.

A plant has tiny openings on its leaves. They open and close to let gases move in and out. What are these openings called?

Stomata
64.
Riddles

A liquid has a pH of 2.

A liquid has a pH of 2. Is it acidic or basic?

Acidic
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66.
Riddles

Center of gravity riddle 

What is the center of gravity? 
The letter ‘V’ 
67.
Riddles

Smallest bone in human body riddle 

What is the smallest bone in the human body? 
The smallest bone in the human body is the stapes bone in the middle ear. 
68.
Riddles

Inside and outside your body riddle 

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 
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69.
Riddles

Chemical symbol for oxygen 

What is the chemical symbol for oxygen? 
The chemical symbol for oxygen is O. 
70.
Riddles

Eat a lot of iron riddle 

What can eat a lot of iron without getting sick? 
Rust. 
71.
Riddles

Chemical symbol for calcium

What is the chemical symbol for calcium? 
The chemical symbol for calcium is Ca. 
72.
Riddles

Hottest body in the solar system

I am the hottest body in the solar system, and I keep everyone warm. Who am I? 
Sun 
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