1. Hydrosphere and the Water Cycle
Ch. 3 Sec. 3

2. Hydrosphere
includes all the water on or near Earth’s surface

3. Oceans

4. River

5. Waterfall

6. Lakes

7. The Water Cycle
Continuous movement of water into air, onto land, and then back to water sources

9. Evaporation
Process by which liquid is heated by the sun then rises into the atmosphere as water vapor
*most evaporates from the ocean

10. Condensation Water vapor forms water droplets on dust particles
Droplets form clouds

11. Precipitation
Water droplets from the clouds collide, stick together, and create larger heavier droplets
Rain, Snow, sleet, or hail

12. Transpiration
Plants and animals giving off water from photosynthesis and cellular respiration

13. Source of Energy
Sunlight provides heat for the Water Cycle to occur

14. Condensation Transpiration Precipitation Evaporation The Clouds form
The movement through plants
Precipitation
The rain falls
Evaporation
The vapor rises

15. Water Sources Ocean Water
Freshwater (rivers, lakes, glaciers, wetlands)
Groundwater

16. Ocean Water Contains more salts…NaCl
Salts come from rocks and volcanic eruptions

17. Ocean Water
Salinity – concentration of salts

18. Freshwater Only 3% of all water is freshwater on Earth
Most locked in glaciers

19. Groundwater Rain and melting snow sink into the ground and collects
Less than 1%

20. Aquifers
Rock layer that stores and allows the flow of groundwater

21. Water Chemical Properties-
Two atoms of hydrogen o +
One atom of oxygen