Topic Details (Notes format)

Which element has the chemical symbol "Ts"?

Which empire was led by Genghis Khan and his successors, spanning much of Asia and Eastern Europe?

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

Which desert covers much of northern Africa?

Which element has the chemical symbol "Os"?

Which American city is famously associated with the Gold Rush of 1849?

Which instrument is used to measure atmospheric pressure?

Which tectonic plate underlies most of the Pacific Ocean?

Who discovered Persepolis?

Who discovered quarks?