Journal WP-1 Answer the following questions in complete sentences: 1. Why is water important? 2. What are some uses for water? http://www.youtube.com/watch?v=nSENol WbyYQ&feature=player_detailpage a. Major Uses 1. Household 2. Agriculture-irrigation a. History 1. China 3000 BC irrigation by flooding rice paddies 2. Egypt, 2000 BC-Bucket device invented to raise water 3. Assyria, 700 BC-Stone aqueduct used by king for plantation 4. Mexico, 500 AD-raised plots with a canal 5. USA, 1870 windmills bring water 6. Israel, 2000-drip irrigation in the desert directly to roots 3. Industry-used to make products but can be recycled to cool machinery 4. Transportation-goods and boats 5. Recreation-boating, swimming, etc b. Water is used by living things to grow, reproduce and carry out life processeslike photosynthesis • 66% of the human body is made up of water. • At just 2% dehydration your performance decreases by around 20%. • We should drink at least 1.5 litres of water a day. c. Groundwater is water that fills cracks and spaces in soil helping to bring nutrients to the soils and organisms in the soil. 1. Two-thirds of our planet is covered by water. 2. 97% of the water is saltwater (dissolved salt and minerals). *3% is freshwater 3. The majority of freshwater is beyond our reach, locked into polar snow and ice (about 97%). 4. This leaves less than 1% for us to drink. http://www.youtube.com/watch?v=vYBjPE0 wekw&feature=player_detailpage • Evaporation occurs when the liquid form of water from bodies of water change into the gaseous form of water • Evapotranspiration is the water lost to the atmosphere from the ground surface. • The transpiration part is talking about evaporation of water from plant leaves. • Sublimation is when a solid changes directly into a gas • It is most often used to describe the process of snow and ice changing into water vapor in the air without first melting into water. • Condensation is the change of water from its gaseous form (water vapor) into liquid water. • This is crucial because it is responsible for the formation of clouds. • When cloud particles become too heavy to remain suspended in the air, they fall to the earth as precipitation. • Snowmelt runoff is a major component in the water cycle. It “runs off” either side of a divide which is a ridge or continuous point of high land into a drainage • Infiltration is when the water enters into the subsurface of soil and rocks. This becomes groundwater. Some soils are permeable-others are impermeable • As part of the water cycle, ground water is a major contributor to flow in many streams and rivers and has a strong influence on river and wetland habitats for plants and animals. • Most of the water in the ground comes from precipitation that infiltrates downward from the land surface • Large amounts of water are stored in the ground. In a region called the Aquifer. The upper layer of an aquifer is called a water table Groundwater can be brought to the surface naturally by a spring, an artesian well or a geyser As water moves through the water cycle, it is “stored” in various ways in the different spheres on Earth • Oceans, seas, and other bodies of water contain about 90% of the moisture in the atmosphere. • Other 10%=plants, transpiration. • 3,100 cubic miles of water. • Includes all water on earth. • 1.35 million cubic kilometers of water on earth. • Not a single drop of water can be found anywhere else in the solar system. • The solid part of earth. • Is composed of minerals and contains the groundwater. • Is all living organisms. • Covers the top 200 meters of oceans and seas. •Study your notes from the last 2 days. We will have a quiz or journal of some sort WITHOUT your notes! BE READY!!!!! • • • • • • http://techalive.mtu.edu/meec/module01/EvaporationandTranspiration.htm http://ga.water.usgs.gov/edu/watercycleevapotranspiration.html http://geography.about.com/od/physicalgeography/a/fourspheres.htm http://www.deafhoosiers.com/sci/soarhigh/lithosphere/lithosphereComp.html http://www.nps.gov/archive/acad/flow/atmosphere.html http://ga.water.usgs.gov/edu/watercycleatmosphere.html