Across
- 2. – Warm-blooded animal with feathers and wings, many species can fly and migrate seasonally
- 3. – Marine invertebrates that build calcium carbonate structures forming reefs and supporting ecosystems
- 7. – Introduction of harmful substances or energy into environment that degrades air, water or soil quality
- 10. – Large body of salty water smaller than an ocean and often found near coasts
- 11. – Flat green organ of a plant where photosynthesis mainly occurs to make food
- 13. – Extensive area dominated by trees that stores carbon and supports high biodiversity
- 16. – Small embryonic plant enclosed in a protective covering that can grow into a new plant under suitable conditions
- 18. – Natural environment where a particular plant or animal species lives and obtains the resources it needs
- 19. – Upper layer of Earth made of minerals and organic matter that supports plant growth
- 20. – Underground part of a plant that anchors it and absorbs water and nutrients from soil
- 21. – The planet we live on, composed of land, water and atmosphere supporting diverse life
- 22. – Chemical element central to organic life and released as carbon dioxide by burning fossil fuels
- 25. – Solid surface of Earth used for habitats, agriculture, infrastructure and natural ecosystems
- 26. – Form of oxygen in the upper atmosphere that absorbs the Sun’s harmful ultraviolet radiation
- 27. – Living organism that produces oxygen and food through photosynthesis using sunlight and water
- 28. – Star that provides light and heat, powering climate systems and photosynthesis on Earth
- 29. – Inland body of standing freshwater surrounded by land and home to many species
- 30. – Organic material from plants and animals that can be used as a renewable energy source
- 31. – Color of healthy vegetation often used to symbolize environmental protection and sustainability
- 34. – Area of land where crops are grown and animals are raised for food and other products
- 35. – Process of converting used materials into new products to reduce waste and conserve resources
- 37. – Relating to an economy model that designs out waste by reusing, repairing and recycling materials
Down
- 1. – Natural flowing watercourse that usually moves from higher to lower ground and empties into a sea or lake
- 3. – Decomposed organic matter used to enrich soil and recycle nutrients back into the ground
- 4. – Movement of air caused by differences in atmospheric pressure that can generate electricity with turbines
- 5. – Large ecological area with distinct climate, plants and animals such as tundra or rainforest
- 6. – Free from dirt, pollution or harmful contamination and safe for people and nature
- 8. – Tall woody plant with trunk, branches and leaves that provides shade and habitat for wildlife
- 9. – Relating to energy obtained from the Sun, commonly used to generate electricity and heat
- 12. – Aquatic animal that breathes with gills and lives in oceans, seas, rivers or lakes
- 14. – To maintain ecological balance by meeting present needs without compromising future generations
- 15. – Clear liquid essential for all living things that cycles through rain, rivers and oceans
- 17. – Community of living organisms interacting with each other and their physical environment as a system
- 23. – Vast interconnected body of salt water that regulates climate and supports marine life
- 24. – Long-term patterns of temperature, humidity, wind and precipitation that characterize a region
- 31. – State of matter such as methane or carbon dioxide that can contribute to greenhouse effects
- 32. – Capacity to do work that appears as heat, light and motion, supplied by sun, wind, water and fuels
- 33. – Precipitation that falls from clouds and replenishes rivers, lakes and groundwater
- 36. – Chlorofluorocarbon man-made chemicals historically used in refrigeration and aerosols that deplete the ozone layer
- 38. – Condition that distinguishes living organisms from nonliving matter, including growth and reproduction