“Know – Understand – Do” Organizer Course: Science Grade(s): 6th Topic: Water in Earth’s Processes Unit School/District: RECA/Glynn County ______________________________________________________________________________ Which Standards are students learning in this unit? S6E3. Students will recognize the significant role of water in earth processes. a. Explain that a large portion of the Earth’s surface is water, consisting of oceans, rivers, lakes, underground water, and ice. b. Relate various atmospheric conditions to stages of the water cycle. c. Describe the location and subsurface topography of the world’s oceans d. Explain the causes of waves, currents, and tides S6E6. Students will describe various sources of energy and with their uses and conservation. a. Explain the role of the sun as the major source of energy and its relationship to wind and water energy. By the end of this unit, students will be able to……. Know That H2O is a compound that can exist as a liquid, solid or a gas. Understand The majority of the Earth's surface is covered with water. Do Water Distribution on Earth lab. In groups, students will perform the experiment and construct Most of the water on the Earth their own data table then is salt water. Only a small amount is fresh water, including graphically represent their data on a data table and a pie chart. water in rivers, many lakes, underground water, and in the Write a summary about the form of ice. procedures they did during the The cycling of water in and out lab and write a conclusion of the atmosphere plays an statement. important role in determining climatic patterns. Make a T-chart (pre write) for various pieces of lab Water evaporation from the equipment. Students will take surface of the earth, rises and one of the pieces of equipment cools, condenses into rain or such as a graduated cylinder, snow, and falls again to the and provide an observation surface. narrative as well as a detailed sketch of the object. H2O cycles through states of matter in the atmosphere based on atmospheric conditions. The water cycle has three stages: precipitation, evaporation, and condensation. The differences between oceans, rivers, lakes, underground water and glaciers (ice). The difference between salt water and fresh water. The earth's oceans are connected. Almost 70% of the Earth's surface is covered by water. • The water, which is a solvent, falling on land collects in rivers and lakes, soil, and porous Create a presentation that includes the location of water on Earth (oceans, rivers, lakes, underground water, and ice) Water is not evenly distributed, and most of it is unsuitable for drinking. layers of rock, and much of it flows back into the ocean. Of the total volume water on the Earth: • 97.2% is in the oceans as salt water, • 2.15% is frozen in ice caps and glaciers, • 0.65% is fresh water in lakes and streams, groundwater, and water vapor in the atmosphere. Salts have become concentrated in the sea (compared with freshwater) because the sun's heat causes the evaporation of water, leaving the salts behind. We can use less than one percent of the water on Earth for drinking and personal hygiene. We also use this fresh water for agriculture, fisheries, transportation, heating and cooling, manufacturing, and many other purposes. Unfortunately, unless we use our freshwater wisely, rivers, lakes, and groundwater can become depleted or polluted, and unavailable or unsuitable for life. Differences in density and/or temperature cause currents. The moon's gravitational pull and the spinning of the earth cause ocean water to bulge, producing tides. Underneath the ocean, the Earth has plains, mountains, and valleys, which are often larger than those on dry land. Ocean currents can be caused by factors such as wind, salinity, temperature, the Coriolis Effect, and gravitational pull. Ocean currents flow in predictable patterns around the world. Much of our municipal and industrial water comes out of the ground. Groundwater is water that occurs as a liquid resource that is dispersed through innumerable holes, pores, fractures and cavities in bodies of rock or sediment. Create a presentation that includes information about the water cycle and how atmospheric conditions relate to it. Create a presentation that includes information about the composition, location, and subsurface topography of the world's oceans. Create a presentation that details the causes of waves, currents, and tides Complete a water cycle webquest using technology to retrieve scientific information about the water cycle, create a file, and save in an electronic file (H drive). Create Frayer maps for assigned vocabulary words. Draw a water cycle posters or labeled water cycle diagram. Write a 5 paragraph essay about a water droplet on a journey through the water cycle. List ways that water is naturally stored both underground and above ground. Diagram the water cycle on a gallon Ziploc bag to make a mock water cycle. Differentiate heat transfer: convection, conduction, and radiation. Water cycle educationalrap.com lyric work sheets (word scrambles and vocabulary activities). Create a schematic map of the water cycle. Do “tides” simulator and answer questions. Create a poem out of tides acronym. Tide Jigsaw activity Discuss neap/spring tides after writing questions and watching video clip. Tides and Water Levels tutorials webquest. Currents web quest Make a thinking map or foldable for different types of currents: (Surface Currents, Gulf Stream, and Deep Ocean Currents). Create a tree map for different types of water movements: waves, tides, currents. Do a “Hot, Cold, Fresh, and Salty Water lab” make predictions and observations for temperature differences and salinity differences in water. Write and chart results from lab. Make a flow chart for the role of the Sun as the ultimate energy source. Describe how humans participate in the water cycle. Write an argument on why water conservation is such an important issue in our school, community, state, and nation as the world’s population continues to increase. http://earthguide.ucsd.edu/earthguide/diagrams/watercycle/ http://ga.water.usgs.gov/edu/watercyclehi.html http://www.enchantedlearning.com/subjects/astronomy/planets/earth/Watercycle.shtml http://www.drinktap.org/kidsdnn/Portals/5/story_of_water/html/hydrocycle.htm http://earthguide.ucsd.edu/earthguide/diagrams/watercycle/watercycleq.html http://www.orgs.ttu.edu/nsta/handouts/ziplockwatercycle.pdf