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

Center of gravity riddle

What is the center of gravity?

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

I am a god, a planet, and I can measure heat. What am I?

I am a gas that is helpful to plants, but I cannot be bought at a gas station. What am I?

What can eat a lot of iron without getting sick?

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.

What is the study of the structure of the Earth's crust called?

What can go up and come down without moving?

What is the process by which plants absorb water through their roots?

What is the chemical symbol for gold?

What is the largest planet in our solar system?

The largest planet in our solar system is Jupiter.

What is the chemical formula for table salt?

The chemical formula for table salt is NaCl (sodium chloride).

What is the smallest bone in the human body?

The smallest bone in the human body is the stapes bone in the middle ear.

I touch your face. I am in your words. I am a lack of space and beloved by birds. What am I?

What is the chemical formula for water?

The chemical formula for water is H2O.