Challenge your knowledge of advanced ecology and ecosystems terms in this hard-level crossword puzzle. Perfect for middle school students exploring biodiversity, interactions, and environmental science.
Hard Ecology Ecosystems Crossword Puzzle for Middle School is a hard crossword puzzle with 13 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.
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Hard Ecology Ecosystems Crossword Puzzle for Middle School
Challenge your understanding of advanced ecology and ecosystems terminology with this hard-level crossword puzzle designed for 6th–8th graders.
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Across
- 1. Non-living environmental factors in an ecosystem
- 2. Microscopic photosynthetic organisms in water
- 3. Organisms colonizing a barren habitat first
- 5. Variety of species within an ecosystem
- 7. Element essential in protein cycles of ecosystems
- 9. Organism that breaks down dead material
- 11. Community of interacting organisms and environment
- 12. Close interaction benefiting at least one species
Down
- 4. Build-up of toxins in an organism over time
- 6. Process converting ammonia to nitrate in soil
- 8. Relating to feeding levels in an ecosystem
- 10. Gradual change in species composition over time
- 13. Transition area between two distinct ecosystems
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