Hydrosphere

2. Polluting or poisonous substance that makes something impure.
6. Organisms that are used to monitor the health of an environment (ex. lichens – algae found on rocks and tree trunks – if disappear – indicator that the environment is not healthy)
9. Molecule with opposite charges
10. How quickly a substance heats up
14. Water’s tendency to climb up a tube or sink into small cracks
15. When the atoms or molecules of a substance stick together
16. Nitrogen compounds involved in eutrophication – too many nitrates leads to less oxygen which leads to fish death
19. Amount of gaseous oxygen (O2) dissolved in the water.
20. Water sticking together on the surface or around a drop

1. Water dissolves most substances (more than any other substance)
3. Excessive richness of nutrients in a lake or other body of water
4. A rapid increase in the population of algae in an aquatic system. Algal blooms may occur in freshwater as well as marine environments.
5. The production and emission of light by a living organism
7. Being a good citizen
8. Microscopic marine producers/base of an aquatic food web
11. When the atoms or molecules of a substance stick to other substances
12. Fertilizers (as plant nutrients) and in detergents (or water softeners), phosphates are a major source of water pollution.
13. Measure of the degree to which the water loses its transparency due to the presence of suspended particulates
17. quality Contamination of water bodies, usually as a result of human activities. Water bodies include for example lakes, rivers, oceans, aquifers and groundwater. Water pollution results when contaminants are introduced into the natural environment
18. Wind-driven process in which nutrient-rich, denser, colder water moves to the surface