100+ Science Riddles to Test Your Knowledge and Enjoy the Challenge" page 2 of 7

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.

What is the chemical formula for water?

The chemical formula for water is H2O.

What is the largest organ in the human body?

The largest organ in the human body is the skin.

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What is the chemical formula for table salt?

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

What is the chemical symbol for oxygen?

What is the name of the largest ocean on Earth?

The largest ocean on Earth is the Pacific Ocean.

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What is the chemical formula for carbon dioxide?

The chemical formula for carbon dioxide is CO2.

What is the chemical formula for methane?

The chemical formula for methane is CH4.

What is the primary gas found in the Earth's atmosphere?

The primary gas found in the Earth's atmosphere is nitrogen.

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What is the chemical formula for sulfuric acid?

The chemical formula for sulfuric acid is H2SO4.

What is the chemical symbol for iron?

What is the name of the smallest particle of an element?

The name of the smallest particle of an element is an atom.

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 What is the chemical formula for hydrochloric acid?

The chemical formula for hydrochloric acid is HCl.

What is the chemical formula for ammonia?

The chemical formula for ammonia is NH3.

What is the name of the layer of gas surrounding the Earth?

The name of the layer of gas surrounding the Earth is the atmosphere.

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