Science Crossword

6. The organisms responsible for breaking down dead plants and animals.
9. The scientific study of how living organisms interact with each other and with their physical environment.
10. When a lake, river, or ocean gets too many nutrients—like nitrogen and phosphorus—causing a massive overgrowth of green algae.
11. Using resources wisely so they never run ou
13. Interacting groups of various species populations coexisting in a common location at the same time.
15. The introduction of harmful substances or waste into the environment

1. Organisms that eat other things
2. The ability to do work or cause change.
3. The endless circle of changes that turns igneous, sedimentary, and metamorphic rocks into one another.
4. Organisms that create their own food using sunlight or chemicals
5. A step-by-step process used to test a scientific idea
7. What happens when water vapor condenses in clouds and gets too heavy.
8. Liquid turns to gas
12. The global integration of knowledge, technology, and research across international borders.
14. Rise of deep ocean water