Across
- 2. Water exists in three states of matter
- 4. is the attraction of molecules that are not alike
- 5. Water changes from a liquid to a gas (water vapor) in two ways
- 8. The evaporation of water from plants is called
- 11. is a condition in which opposite ends of a molecule have slightly opposite charges, but the overall charge of the molecule is neutral.
- 15. The turbidity of water is measured using a
- 16. Ice stays on top of the water because
- 17. An organism that is sensitive to environmental conditions and is one of the first to respond to change is a
- 18. The series of natural processes by which water continually moves throughout the hydrosphere is called the
- 20. is the amount of thermal energy needed to raise the temperature of 1 kg of material by 1 degree Celsius.
Down
- 1. Water evaporates from oceans and lakes and rises into the Earth’s atmosphere as
- 3. Most of the freshwater on earth is found in
- 6. is a nitrogen based compound often used in fertilizers
- 7. is the attraction among molecules that are alike
- 9. Pollution that cannot be traced to one location is
- 10. is the process of a gas changing to a liquid
- 11. is pollution that can be traced to one location such as a drain pipe or smoke stack. Two examples of point source pollution are factories and sewage treatment plants.
- 12. A measure of the cloudiness of water, from sediments, microscopic organisms, or pollutants is
- 13. is all the water on and below Earth’s surface and in the atmosphere.
- 14. Three things necessary for photosynthesis are
- 19. The process of liquid changing to a gas at the surface of the liquid is called