Earth Science Crossword

4. intrusive volcanism is when magma is forced into the tocks that make up the earth's crust.
11. a british lawyer and geologist, recognized the utility of fossils and subdividing geologic time on the basis of fossils.
14. extremely hot liquid located under earth's surface.
15. he divided the rock record time into the rock time units from oldest to youngest.
16. when the oceanic plate sinks beneath the continental plate.
18. which rocks are altered in composition, texture, or internal structure by extreme heat, pressure.
22. associated with energy originating in the interior of the solid earth.
23. wearing away of rocks by constant collision of loose particles.
24. known as "acient life", rapid diversification of life, represented by cambrian fauna.
25. it is the study of the processes that deform the earth's crust.

1. the reaction between minerals and oxygen dissolved in water.
2. dissociation of molecules into ions.
3. change in the composition of minerals when they react with water.
5. its eruption produces lava in the surface of the earth and this will cool down and becomes igneous rocks.
6. eon of "visible life"
7. the fracturing and displacement of brittle rocks 'strata' along the fault plane
8. from "hades" greek god of the underworld.
9. the breakdown of rocks at the earth's surface, by the action of rainwater, extremes of temperature, and biological activity.
10. grinding/sliding action between the plates.
12. geological phenomena and process that originate externally to the earth's surface.
13. when water gets inside the joints, alternate freezing and thawing episodes pry the rock apart.
17. two plates move away from each other.
19. known as the era of "hidden life" or cryptozoic era.
20. two plates move towards each other.
21. occur when rocks are pushed towards each other from the opposite sides.