Across
- 2. A terraced step-pyramid structure built in ancient Mesopotamian cities for religious purposes
- 3. A group of highly reactive elements including fluorine, chlorine, and iodine
- 8. The atmospheric layer above the troposphere, where the ozone layer is located
- 11. A temperature scale used primarily in scientific contexts, starting at absolute zero where molecular motion ceases
- 12. A prehistoric supercontinent that included present-day South America, Africa, Antarctica, and Australia
- 13. A natural light display in the sky, caused by charged particles from the Sun interacting with Earth's atmosphere
- 14. A rapidly rotating column of air extending from a thunderstorm to the ground
Down
- 1. The supercontinent that existed over 200 million years ago before breaking apart into the continents we know today
- 4. A group or chain of islands, often formed by volcanic or tectonic activity
- 5. The windiest planet in the solar system, discovered through mathematical predictions before being observed
- 6. A valuable spice derived from the crocus flower, known for its deep golden color and distinctive aroma
- 7. A scale used to measure the intensity of an earthquake based on observed effects rather than energy release
- 9. A massive explosion in 1908 over Siberia, likely caused by an asteroid or comet airburst
- 10. An insect known for its long life cycles, spending years underground before emerging in synchronized swarms
- 15. A naturally occurring volcanic glass, historically used for sharp tools and weapons