About Rocks, Minerals and Volcanoes Quiz #850
Rocks, Minerals and Volcanoes Quiz #850 was the quiz for Friday, October 30, 2026: 10 questions: 3 easy, 4 medium and 3 hard. Everyone who played Rocks, Minerals and Volcanoes Quiz that day got the same quiz, and it stays here to play for 60 days.
The questions of Rocks, Minerals and Volcanoes Quiz #850
- What is an opening in the Earth's surface that can erupt with lava, ash and gas called?
- What are the icicle-shaped formations hanging from cave ceilings called?
- Deep inside the Earth, what turns carbon into diamond?
- Which Northern Ireland site is famous for about 40,000 columns of volcanic rock, most of them six-sided?
- Which German scientist proposed the idea of continental drift in 1912?
- Which Icelandic volcano's 2010 eruption grounded flights across Europe?
- What is a fast, deadly avalanche of hot gas, ash and rock down a volcano called?
- Which Newfoundland national park lets visitors walk on rock from Earth's mantle?
- Which 17th-century scientist is credited with first stating that lower rock layers are older than the layers above them?
- Which Scottish scientist, often called the father of modern geology, argued that Earth is extremely old?
The answer options and the answers appear only when you play the quiz, one question at a time.
New to Rocks, Minerals and Volcanoes Quiz? The rules, tips and common questions are on the Rocks, Minerals and Volcanoes Quiz page.
Other days of Rocks, Minerals and Volcanoes Quiz
- Rocks, Minerals and Volcanoes Quiz #849, Oct 29
- Rocks, Minerals and Volcanoes Quiz #848, Oct 28
- Rocks, Minerals and Volcanoes Quiz #847, Oct 27
- Today’s quiz, #851
Every day of the last 60 is in the puzzle archive.