Environmental Chemistry

3. nutrients needed in large amounts by an organisms
5. the "Potential of Hydrogen" or the scale that rates how acidic a substance is
6. substance with a bitter taste, turns litmus paper blue, pH of more than 7
9. inorganic molecules that are used to help enzymes function
12. Human made pollutant, used as propellants in aerosol cans, persistent pollutant that destroys ozone layer
14. organic molecule in which energy is stored and includes fats, oil, and waxes
16. increase in a contaminant's concentration at each level of the food chain
18. increase in a contaminant's concentration in an individual organism
20. substances with a pH of 7
21. a chemical used to kill unwanted plants
22. organic molecule made up of amino acids and are the building blocks of body tissue, they help repair tissue and build muscle

1. dense metal or metalloid that can cause environmental concern
2. organisms that can infer the health of an ecosystem
4. Prevents UV rays from reaching Earth's surface
5. a chemical used to kill unwanted pests, example is DDT
7. organic sugar molecule that provides energy for organisms
8. a substance used to enrich soil by providing nutrients that are missing (main sources nitrogen & phosphorus)
10. nutrients needed in small amounts by an organism
11. any alteration of the environment producing a condition that is harmful to living things
13. a substance with a sour taste, turns litmus paper red, has a pH value of less than 7
15. chemical used to kill unwanted insects
17. elements and compounds that organisms need for living, growing and reproducing
19. dichlorodiphenyltrichloroethane - used to kill unwanted insects such as lice during WWII, used to kill mosquitoes to stop the spread of malaria