Across
- 2. most abundant in the universe lightest found in stars
- 3. physicals property of matter
- 5. about 99% of our universe
- 9. proteins, lipids, carbs and nuclei acids
- 10. most reactive of all the elements
Down
- 1. nonflammable,expensive and used in party balloons
- 4. most important to life and organic compounds
- 6. solute + solvent
- 7. least reactive of all the elements
- 8. found in laundry detergent and silly putty