Puzzle answers: Science
Crossword answers
Across
3. Big Bang
4. Linguistics
5. Gas
9. 13 Going On 30
10. Paleontologist
12. Neil Armstrong
16. Star Wars
17. Optimum Nutrition
20. Photosynthesis
21. Star Trek
Down
1. Katy Perry
2. A Brief History of Time
6. Avatar
7. Extra Terrestrial
8. Endorphins
11. Tornado
13. Love
14. Isaac Newton
15. Science Fiction
18. NASA
19. Aviation
