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

Earth’s WatersEarth’s WatersChapter 1, Section 1: How Chapter 1, Section 1: How

is Water Important?is Water Important?

Learning Objectives: Students Learning Objectives: Students should be able to:should be able to:

*Give examples of how people and *Give examples of how people and other living things use water.other living things use water.

* Identify how earth’s water is * Identify how earth’s water is distributed among salt and fresh distributed among salt and fresh water sources.water sources.

Section 1 VocabSection 1 Vocab

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


2. 2. PhotosynthesisPhotosynthesis-the process that -the process that plants use to make food from water, plants use to make food from water, carbon dioxide, and energy.carbon dioxide, and energy.


3. 3. HabitatHabitat-The place where the -The place where the organisms lives and provides the organisms lives and provides the things it needs to survive.things it needs to survive.


4. 4. Water VaporWater Vapor-the gaseous form -the gaseous form of water.of water.


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

NotesNotes11. 5 Major uses of Water in . 5 Major uses of Water in

the U.S.the U.S. Household PurposesHousehold Purposes

AgricultureAgriculture

IndustryIndustry

TransportationTransportation

RecreationRecreation

Water on EarthWater on Earth

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

435

Water and Living ThingsWater and Living Things

3. Water is essential for living things 3. Water is essential for living things to to

– GrowGrow

– ReproduceReproduce

– And carry out other important And carry out other important processes.processes.

Distribution of WaterDistribution of Water

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

97%salt

Water on EarthWater on Earth

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

1%

Water Conservation videosWater Conservation videos Why waste today when you can save for tomorrow. Why waste today when you can save for tomorrow.

http://http://www.youtube.com/watch?vwww.youtube.com/watch?v=hC9uVM162BI=hC9uVM162BI

Water Conservation Commercial: Water Conservation Commercial: http://http://www.youtube.com/watch?vwww.youtube.com/watch?v=1BHQ170BVcM&NR=1=1BHQ170BVcM&NR=1

Save Water: Save Water: http://http://www.youtube.com/watch?vwww.youtube.com/watch?v=69Kd7F9BU08&feature=related=69Kd7F9BU08&feature=related

~~~~~~~~~~~~~~~~~~ Home water saving tips: Home water saving tips:

http://www.youtube.com/watch?v=rRsiz5ykjuchttp://www.youtube.com/watch?v=rRsiz5ykjuc

Energy Conservation for kids: Energy Conservation for kids: http://www.youtube.com/watch?v=Xz8sVG6GVWwhttp://www.youtube.com/watch?v=Xz8sVG6GVWw

Earth’s WatersEarth’s WatersChapter 1, Section 2: Chapter 1, Section 2:

Property of WaterProperty of Water

Learning Objectives: You should Learning Objectives: You should be able to:be able to:*describe the physical and chemical *describe the physical and chemical properties of properties of water.water.

*explain how water dissolves other polar *explain how water dissolves other polar substancessubstances

*identify three states in which water exists *identify three states in which water exists on on Earth.Earth.

VocabVocab

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

VocabVocab

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

VocabVocab

8. 8. Capillary ActionCapillary Action-the combined -the combined force of attraction among water force of attraction among water molecules and with the molecules of molecules and with the molecules of surrounding materials. surrounding materials.

Capillary action allows water to move Capillary action allows water to move through materials with pores or through materials with pores or narrow spaces inside.narrow spaces inside.

VocabVocab

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

VocabVocab

10. 10. SolventSolvent-The substance that does -The substance that does the dissolving.the dissolving.

Water is the solvent when you make Water is the solvent when you make lemonade from a powdered mix.lemonade from a powdered mix.

Water is the universal solvent.Water is the universal solvent.

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

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

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

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

NotesNotes

1. Question: A short way to write the 1. Question: A short way to write the chemical formula for water is ______chemical formula for water is ______H2

0

NotesNotes

2. Water is made of ____negative 2. Water is made of ____negative atom of _____ and _____positive atom of _____ and _____positive atoms of______.atoms of______.

One

oxygenhydrogen

two

NotesNotes

3. ________ ________ causes raindrops 3. ________ ________ causes raindrops to form on windshields.to form on windshields.

Surface tension

NotesNotes

4. Ice tea and lemonade are common 4. Ice tea and lemonade are common

____________.____________.solutions

NotesNotes

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

dissolvepolar

NotesNotes

6. Three factors that affect 6. Three factors that affect dissolving:dissolving:

– A. A.

– B.B.

– C. C.

Stirring

Particle Size

Temperature

NotesNotes 7. Some substances such as _________ and 7. Some substances such as _________ and

_________ will not dissolve in water _________ will not dissolve in water because they are__________.because they are__________.

Non polar-A molecule in which the electrons are Non polar-A molecule in which the electrons are shared equally between the nuclei.shared equally between the nuclei.

Oil

WaxNon polar

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

on

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

ion

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

less

Earth’s WatersEarth’s WatersChapter 1, Section 3: The Chapter 1, Section 3: The

Water CycleWater Cycle

Learning Objectives:Learning Objectives:

*to describe how earth’s water *to describe how earth’s water moves through the water cycle.moves through the water cycle.

*list ways that living things depend *list ways that living things depend on the water cycle.on the water cycle.

VocabVocab Water cycle-Water cycle- the continuous the continuous

process by which water moves process by which water moves through the living and non living through the living and non living parts of the environment.parts of the environment.

In the water cycle, water moves from In the water cycle, water moves from bodies of water, land, and living things on bodies of water, land, and living things on Earth’s surface to the atmosphere and Earth’s surface to the atmosphere and back to Earth’s surface.back to Earth’s surface.

VocabVocab

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

VocabVocab

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

NotesNotes

1. The _________ energy drives the 1. The _________ energy drives the water cycle.water cycle.

Sun’s

Water CycleWater Cycle

Video: Video: http://www.youtube.com/watch?v=0_http://www.youtube.com/watch?v=0_c0ZzZfC8c&feature=relatedc0ZzZfC8c&feature=related

Water Cycle Review-Water Cycle Review-

http://livingclassrooms.org/slurrp/wathttp://livingclassrooms.org/slurrp/watercycle.htmlercycle.html

NotesNotes

2. Three places from which water 2. Three places from which water evaporates:evaporates:

– A. A.

– B. B.

– C. C.

Surface of oceans and large lakes

Small amounts from the soil, puddles, and your skin

Significant amount given off by plants

NotesNotes

3. Condensed droplets of _________ 3. Condensed droplets of _________ clump together around ________ clump together around ________ particles in the air forming__________.particles in the air forming__________.

watertiny dust

clouds

NotesNotes

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

10

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