Topic Details (Notes format)

Which isotopes are commonly used to date organic remains in archaeology, with a half-life of ~5,730 years?

Which element has the chemical symbol "Ti"?

In which layer of Earth do earthquakes primarily occur?

Who discovered astatine?

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

Which chemical test uses nitric acid and ammonia to detect proteins (turning violet)?

Who discovered dwarf planet Makemake?

Who discovered the blood-brain barrier?

Which element has the chemical symbol "Pr"?

Which US national park is famous for Old Faithful geyser?