Enhance your biology lessons with this medium-difficulty crossword focused on the human circulatory system. Includes essential terms like arteries, valves, and plasma, perfect for educators.
Ecology & Ecosystems Crossword Puzzle for Upper Elementary is a hard crossword puzzle with 15 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.
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Ecology & Ecosystems Crossword Puzzle for Upper Elementary
Challenge your advanced knowledge of ecology and ecosystems with this hard crossword puzzle designed for 3rd to 5th graders. Explore technical terms like symbiosis, niche, and biodiversity.
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Across
- 1. Conversion of ammonia into nitrates by bacteria
- 2. Sequence showing who eats whom in an ecosystem
- 3. Variety of living species within an ecosystem
- 5. Close interaction between species where at least one benefits
- 8. Organism breaking down dead matter and recycling nutrients
- 11. One organism hunts and eats another
- 13. Atmospheric gas crucial for building proteins in organisms
- 15. Transition area between two different ecosystems
Down
- 4. Process plants use to convert sunlight into energy
- 6. Natural home or environment of an organism
- 7. Movement of carbon through air, plants, and animals
- 9. Scientist who studies relationships between organisms and their environment
- 10. When organisms vie for the same resources
- 12. Animals that eat both plants and animals
- 14. Substances organisms need to live and grow
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