Topic Details (Notes format)

Which organ pumps blood throughout the human body?

What is the smallest prime number?

Which is the tallest mountain above sea level?

Which city was known as Tsaritsyn, then Stalingrad, and now has another name in Russia?

Who discovered X‑rays?

Which chemical element has the symbol O?

Who discovered in vitro fertilization?

What is the name of Earth’s largest satellite?

Which inventor is known for the phonograph and practical electric light bulb improvements?

Who discovered electron spin?