Across
- 4. when light waves are "stretched out," in other words this means what our eyes can see is the light that moves toward the red side of the spectrum and it gives scientists the idea that the universe is expanding
- 8. center of the earth
- 9. a star that has collapsed under its own gravity; possible stage of a large mass star
- 11. a reaction that happens inside the core of a star
- 13. an object whose gravity is so strong that nothing, not even light, can escape it; stage of a star
- 14. the lowest temperature possible
- 15. concrete, verifiable information that either supports or disproves a claim
- 16. German Meteorologist who proposed the theory of continental drift
- 20. the study of the properties and interactions of astronomical bodies
- 21. an assertion that something is true
- 23. narrative about the beginning of the Universe and humanity
- 24. the name of the single landmass that broke apart 200 million years ago and gave rise to today's continents
- 26. the study of the Earth, including its composition and history
- 27. one of the basic building blocks of the universe
- 28. a mysterious substance that is very common throughout the Universe. Scientists can view its interactions with gravity but not with light
- 31. a mysterious force that seems to be accelerating the expansion of the Universe
- 32. the study of how the universe came to be
- 33. a planet outside of our Solar System
Down
- 1. the quality that defines how much energy a star is actually giving off
- 2. a hypothetical “tunnel” through space-time that connects widely distant regions, thus providing a kind of short-cut through space-time
- 3. a "gut feeling" that is not necessarily based on logic or evidence
- 5. the change in the placement of an object caused by movement of the observer
- 6. the hypothesis that the continents slowly move across Earth's surface
- 7. any substance that has mass and occupies space
- 8. the layer of rock that forms Earth's outer surface
- 10. a stream of subatomic particles moving away from the Sun that is essentially an extension of the corona
- 12. using your reasoning to come to a conclusion
- 16. the study of the universe
- 17. a unified account of the entire history of the Universe that uses evidence and ideas from multiple disciplines to create a broad context for understanding humanity
- 18. a convenient unit for measuring the large distances in the universe
- 19. a theory that the universe started from an explosion that slowly expanded
- 22. the layer of hot, solid material between Earth's crust and core
- 25. a respectable or credible source; an expert
- 29. moments in the history of the Universe when specific ingredients under the right "Goldilocks Conditions" are transformed to create something entirely new and more complex
- 30. a kind of star that varies in brightness over a period of time