Chapter 1, Section 1: How is Water Important? Earth’s Waters Chapter 1, Section 1: How is Water Important?

Learning Objectives: Students should be able to: *Give examples of how people and other living things use water. * Identify how earth’s water is distributed among salt and fresh water sources.

Section 1 Vocab 1. Irrigation- the process of supplying water to areas of land to make them suitable for growing crops.

Section 1 Vocab 2. Photosynthesis-the process that plants use to make food from water, carbon dioxide, and energy.

Section 1 Vocab 3. Habitat-The place where the organisms lives and provides the things it needs to survive.

Section 1 Vocab 4. Water Vapor-the gaseous form of water.

Section 1 Vocab 5. Ground water-water that fills the cracks and spaces in underground soil and rock layers.

Notes 1. 5 Major uses of Water in the U.S. Household Purposes Agriculture Industry Transportation Recreation

Water on Earth 435 2. Question: It takes ______ liters of water to grow the wheat to make a single loaf of bread!

Water and Living Things 3. Water is essential for living things to Grow Reproduce And carry out other important processes.

Distribution of Water 4. Question: More than _____ of Earth’s water is ____ water that is found mainly in the oceans. 97% salt

Water on Earth 1% 5. Question: Less than ____of the water on Earth is available for human use.

Water Conservation videos Why waste today when you can save for tomorrow. http://www.youtube.com/watch?v=hC9uVM162BI Water Conservation Commercial: http://www.youtube.com/watch?v=1BHQ170BVcM&NR=1 Save Water: http://www.youtube.com/watch?v=69Kd7F9BU08&feature=related ~~~~~~~~~ Home water saving tips: http://www.youtube.com/watch?v=rRsiz5ykjuc Energy Conservation for kids: http://www.youtube.com/watch?v=Xz8sVG6GVWw

Chapter 1, Section 2: Property of Water Earth’s Waters Chapter 1, Section 2: Property of Water

Learning Objectives: You should be able to: *describe the physical and chemical properties of water. *explain how water dissolves other polar substances *identify three states in which water exists on Earth.

Vocab 6. Polar Molecule-A molecule that has electrically charged areas.

Vocab 7. Surface Tension-The tightness across the surface of water that is caused by the polar molecules pulling on each other.

Vocab 8. Capillary Action-the combined force of attraction among water molecules and with the molecules of surrounding materials. Capillary action allows water to move through materials with pores or narrow spaces inside.

Vocab 9. Solution-A mixture that forms when one substance dissolves another.

Vocab 10. Solvent-The substance that does the dissolving. Water is the solvent when you make lemonade from a powdered mix. Water is the universal solvent.

11. State-forms: solid, liquid, and gas.

12. Evaporation-the process by which molecules at the surface absorb enough energy to change the gaseous state.

13. Condensation-the process by which a gas changes to a liquid.

14. Specific Heat-the amount of heat needed to increase the temperature of a certain mass of a substance by 1OC.

Notes 1. Question: A short way to write the chemical formula for water is ______ H20

Notes One 2. Water is made of ____negative atom of _____ and _____positive atoms of______. two oxygen hydrogen

Notes 3. ________ ________ causes raindrops to form on windshields. Surface tension

Notes 4. Ice tea and lemonade are common ____________. solutions

Notes 5. One reason that water can _________many substances is that it is ________. dissolve polar

Notes 6. Three factors that affect dissolving: A. B. Stirring C. Particle Size Temperature

Notes Oil 7. Some substances such as _________ and _________ will not dissolve in water because they are__________. Non polar-A molecule in which the electrons are shared equally between the nuclei. Wax Non polar

8. Air drying your hair is an example of______________. Evaporation

9. “Fogging up” a bathroom mirror is an example of _______________. Condensation

10. Ice is ________dense than liquid water. less 10. Ice is ________dense than liquid water.

Chapter 1, Section 3: The Water Cycle Earth’s Waters Chapter 1, Section 3: The Water Cycle

Learning Objectives: *to describe how earth’s water moves through the water cycle. *list ways that living things depend on the water cycle.

Vocab Water cycle- the continuous process by which water moves through the living and non living parts of the environment. In the water cycle, water moves from bodies of water, land, and living things on Earth’s surface to the atmosphere and back to Earth’s surface.

Vocab Transpiration-The process in which water is given off through the leaves of plants.

Vocab Precipitation-Water that falls to the earth as rain, snow, hail, or sleet.

Notes 1. The _________ energy drives the water cycle. Sun’s

Water Cycle Video: http://www.youtube.com/watch?v=0_c0ZzZfC8c&feature=related

Water Cycle Review- http://livingclassrooms.org/slurrp/watercycle.html

Notes 2. Three places from which water evaporates: B. C. Surface of oceans and large lakes Small amounts from the soil, puddles, and your skin Significant amount given off by plants

Notes water 3. Condensed droplets of _________ clump together around ________ particles in the air forming__________. tiny dust clouds

Notes 4. Most water molecules spend only about ____ days in the atmosphere before falling back to Earth. 10