Introduction to Agriculture, Food, and Natural
Resources
1
Introduction to Agriculture, Food, and Natural
Resources
The Water Cycle
Unit 3 – Lesson 3.5 Water World
2
Importance of Water
• Covers 70% of
Earth
• Sustains all life
processes
• Used for many
purposes
–
–
–
–
–
–
Agriculture
Industry and processing
Hydroelectric plants
Fish and wildlife
Recreation
Domestic use such as
bathing, cleaning, yard
irrigation
3
Where Water is Found
•Atmosphere
•Precipitation
•Organisms
•Earth’s surface
•Groundwater
4
Scripps Institution of Oceanography. (2010). Water cycle diagram. Retrieved from
http://earthguide.ucsd.edu/earthguide/diagrams/watercycle/
Water Changing Processes
5
Scripps Institution of Oceanography. (2010). Water cycle diagram. Retrieved from
http://earthguide.ucsd.edu/earthguide/diagrams/watercycle/
Water Changing Processes
• Melting – change from solid to
liquid
• Freezing – change from liquid to
solid
• Evaporation – change from
liquid to gas
6
Water Changing Processes
• Condensation – change
from gas to liquid
• Transpiration – water
vapor produced by plants
• Percolation and
infiltration – movement
of water through earth
materials
7
Movement of Water
8
Scripps Institution of Oceanography. (2010). Water cycle diagram. Retrieved from
http://earthguide.ucsd.edu/earthguide/diagrams/watercycle/
References
Camp, W.G., & Heath-Camp, B. (2009).
Managing our natural resources (5th ed.).
Clifton Park, NY: Delmar.
Scripps Institution of Oceanography. (2010).
Water cycle diagram. Retrieved from
http://earthguide.ucsd.edu/earthguide/diag
rams/watercycle/
9