Across
- 2. the most abundant form of matter in the universe, invisible to telescopes
- 5. all the water found on the Earth
- 6. living or once living
- 9. anything that takes up space and has mass
- 10. non-living
- 11. when nutrient levels in aquatic ecosystems rise beyond equilibrium
- 12. water,carbon,nitrogyn
Down
- 1. electrical components are connected in 2+ loops
- 3. all the electrical components are connected one after another in a single loop
- 4. the study of matter
- 7. a form of energy that constitutes for 75% of energy in the universe
- 8. converts energy into heat,light,sound