Across
- 5. an element needed for breathing
- 6. a pure substance whose molecules contain different atoms from different elements
- 9. the region of Texas we live in
- 11. to identify or describe clearly
- 12. the coast in the south east of Texas
- 15. a river that creates the border with Oklahoma
- 17. a type of chemical reaction that breaks molecules into separate elements
- 18. one type of organism
- 19. related to one kind of thing
- 20. the base for all life, and half of CO2
- 22. the most abundant element in the atmosphere
- 25. the most populous city in Texas
- 26. homogeneous mixtures of more than one susbtance
- 27. texas's capital
- 28. the second most populous Texan city
- 29. a particular subject about which a person is an expert
Down
- 1. the state along the eastern Texas border
- 2. this is formed when compounds are physically combined without changing their properties
- 3. a national park in west Texas
- 4. something made up of two or more atoms bonded tightly together
- 7. a person with special knowledge in a particular area
- 8. a region famous for caverns and lakes
- 10. the western most city in Texas
- 13. the condition of easy recognition or close relationship
- 14. well known
- 16. the name of the princess from our literature
- 18. the type of chemical reaction used in photosynthesis
- 20. a type of chemical reaction that is used when you burn rocket fuel
- 21. to get to know
- 23. a river along Texas's southern border
- 24. where the stars are big and bright