Earth Science

4. is the scientific study of the ocean.
6. is a physical theory that describes how the universe expanded from an initial state of high density and temperature.
10. is a hypothetical cosmological model concerning the ultimate fate of the universe.
11. was an English naturalist, geologist, and biologist,[7] widely known for his contributions to evolutionary biology.
12. was an English scientist who contributed to the study of electromagnetism and electrochemistry.
14. occur where two plates slide toward each other to form either a subduction zone.
15. A ______ is a material or object that produces a magnetic field.
16. is a layer of gasses that envelop an astronomical object, held in place by the gravity of the object.
18. Who discovered carbon dioxide.
20. the outer layer composed of pastry or salt.

1. is a hypothetical scenario for the ultimate fate of the universe.
2. also called the ecosphere.
3. is the combined mass of water found on, under, and above the surface of a planet, minor planet, or natural satellite.
5. is used to provide an inert protective atmosphere for making fibre optics and semiconductors.
6. is a hypothetical scenario where the universe continues to expand forever and eventually all matter reaches a final uniform state.
7. He invented calculus and provided a clear understanding of optics.
8. planar rock fractures showing evidence of relative movement.
9. These are where two plates slide apart from each other.
13. is a substance's mass per unit of volume.
17. occur where plates are neither created nor destroyed.
19. the study of everything in the universe beyond Earth's atmosphere.