Topic Details (Notes format)

Which vitamin is produced when the human skin is exposed to sunlight?

Which French chemist identified and named oxygen (1774) and hydrogen (1783)?

Which element has the chemical symbol "Np"?

Who discovered Petra?

Who discovered the sliding filament theory?

Which is the largest of the Great Lakes in North America by surface area?

Which empire built the monumental Hagia Sophia in Constantinople (now Istanbul) in the 6th century?

Which Asian dish is a Japanese noodle soup, often with wheat noodles in a meat or fish-based broth?

Who discovered cosmic microwave background radiation?

Which element has the chemical symbol "Be"?