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Journal WP-1. Answer the following questions in complete sentences: Why is water important? What are some uses for water?. Answer the following questions in complete sentences: Why is water important? What are some uses for water?. Earth’s Waters.
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Journal WP-1 Answer the following questions in complete sentences: • Why is water important? • What are some uses for water? Answer the following questions in complete sentences: • Why is water important? • What are some uses for water?
Earth’s Waters http://www.youtube.com/watch?v=nSENolWbyYQ&feature=player_detailpage
1. Importance of Water a. Major Uses 1. Household 2. Agriculture-irrigation a. History • China 3000 BC irrigation by flooding rice paddies • Egypt, 2000 BC-Bucket device invented to raise water • Assyria, 700 BC-Stone aqueduct used by king for plantation • Mexico, 500 AD-raised plots with a canal • USA, 1870 windmills bring water • Israel, 2000-drip irrigation in the desert directly to roots
3. Industry-usedto 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 processes-like 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. Groundwateris water that fills cracks and spaces in soil helping to bring nutrients to the soils and organisms in the soil.
d. Water World Two-thirdsof our planet is covered by water. 97%of the water is saltwater (dissolved salt and minerals). *3% is freshwater The majority of freshwater is beyond our reach, locked into polar snow and ice (about 97%). This leaves less than 1% for us to drink.
B. Water Cycle http://www.youtube.com/watch?v=vYBjPE0wekw&feature=player_detailpage
1. Evaporation • Evaporation occurs when the liquid form of water from bodies of water change into the gaseous form of water
1a. Evapotranspiration • Evapotranspirationis the water lost to the atmosphere from the ground surface. • The transpiration part is talking about evaporation of water from plant leaves.
1b. Sublimation • Sublimationis 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.
2. Condensation • 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.
3. Precipitation • When cloud particles become too heavy to remain suspended in the air, they fall to the earth as precipitation.
3a. Snowmelt Runoff • Snowmelt runoff is a major component in the water cycle. It “runs off” either side of a dividewhich is a ridge or continuous point of high land into a drainage basin
3b. Infiltration • Infiltration is when the water enters into the subsurface of soil and rocks. This becomes groundwater. Some soils are permeable-others are impermeable
3c. Ground-Water Discharge • 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.
3d. Ground-Water Storage • 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
3e.Bringing Groundwater to the surface Groundwater can be brought to the surface naturally by a spring, an artesian well or a geyser
4. Water in the “Speres” As water moves through the water cycle, it is “stored” in various ways in the different spheres on Earth
4a. Water in Atmosphere • 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.
4b. Water in Hydrosphere • 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.
4c. Water in Lithosphere • The solid part of earth. • Is composed of minerals and contains the groundwater.
Water in Biosphere • 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!!!!!
Webliography • 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