Topic Details (Notes format)

Which element has the chemical symbol "Rg"?

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

Which short story by Edgar Allan Poe features a murder revealed by a heartbeat under the floorboards?

Who discovered Machu Picchu?

Who discovered the structure of cytochrome c?

Which element has the chemical symbol "Hf"?

Which city in the Netherlands is known for its canals, museums, and Anne Frank House?

Which empire was known for constructing Machu Picchu in the Andes?

Which empire built the famous Machu Picchu site?

Which element has the chemical symbol "Pr"?