European Project for web-assisted Environmental Education
  freeyourriver Background information Library Water resource

CHAPTER 3. WATER RESOURCE
(*) related to the WATER QUALITY chapter of FYR Checklist

The presence of water on the earth

  • Hydrological cycle

Physical qualities of water

  • Evaporation and condensation
  • Freezing

Chemical qualities of water

  • Hydrogen bonds and polarity
  • pH
  • Solubility of salts
  • Eutrohication
  • Dissolved oxygen

Water and life

  • Photosynthesis