About Rocks, Minerals and Volcanoes Quiz #836
Rocks, Minerals and Volcanoes Quiz #836 was the quiz for Friday, October 16, 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 #836
- What is the thin, rocky outer layer of the Earth called?
- Which gem is made by a living animal rather than formed in rock?
- In undisturbed layers of sedimentary rock, where are the oldest layers usually found?
- Which is the thickest layer of the Earth, lying between the crust and the core?
- Which tall, cone-shaped volcanoes are built from many layers of lava and ash?
- Saskatchewan mines a lot of potash for fertilizer; which nutrient element does potash supply?
- Which long ridge of rock runs from New York State through Niagara Falls and up Ontario's Bruce Peninsula?
- Which ring-shaped body of water in Quebec fills a huge crater left by an impact from space?
- What is the Hawaiian name for smooth, ropy lava?
- Each whole step up a magnitude scale, such as from 5 to 6, means about how much more ground shaking?
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 #839, Oct 19
- Rocks, Minerals and Volcanoes Quiz #838, Oct 18
- Rocks, Minerals and Volcanoes Quiz #837, Oct 17
- Rocks, Minerals and Volcanoes Quiz #835, Oct 15
- Rocks, Minerals and Volcanoes Quiz #834, Oct 14
- Rocks, Minerals and Volcanoes Quiz #833, Oct 13
- Today’s quiz, #851
Every day of the last 60 is in the puzzle archive.