Geology Crossword Puzzle

7. boundary – A boundary where two plates move away from each other.
9. – An area where hot material from deep inside the Earth rises and forms volcanoes.
10. – When one tectonic plate is forced under another and sinks into the mantle.
11. record – The collection of fossils that shows how life on Earth has changed over time.
12. boundary – A boundary where two plates move toward each other.
14. crust – The thick, less dense part of Earth’s crust that makes up the continents.
15. crust – The thinner, denser part of Earth’s crust found under oceans.
17. Ridge – An underwater mountain range where new crust forms as plates move apart in the Atlantic Ocean.
18. boundaries – The edges where tectonic plates meet.

1. – A large, slow-moving mass of ice formed from compacted snow.
2. tectonics – The theory that Earth’s surface is made of large plates that move and interact, causing earthquakes, volcanoes, and mountains.
3. drift theory – The idea that continents were once connected and have slowly moved apart over millions of years.
4. – A large landmass on Earth (like Africa or North America).
5. – The raising of Earth’s surface due to tectonic forces.
6. – The thick layer of Earth beneath the crust where convection currents occur.
8. boundary – A boundary where two plates slide past each other.
12. cycle – The movement of heat in the mantle where hot material rises and cooler material sinks, helping move tectonic plates.
13. – An opening in Earth’s surface where magma, ash, and gases can escape.
16. – A supercontinent that existed millions of years ago when all the continents were joined together.
17. range – A group of connected mountains formed by tectonic forces.