Earth

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Earths Waters

• Chapter 1, Section 1 How is Water Important?

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• Learning Objectives Students should be able to
• Give examples of how people and other living
  things use water.
• Identify how earths water is distributed
  among salt and fresh water sources.

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Section 1 Vocab

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

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Section 1 Vocab

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

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Section 1 Vocab

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

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Section 1 Vocab

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

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Section 1 Vocab

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

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Notes1. 5 Major uses of Water in the U.S.

• Household Purposes
• Agriculture
• Industry
• Transportation
• Recreation

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

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Water and Living Things

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

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Distribution of Water
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• 4. Question More than _____ of Earths water
  is ____ water that is found mainly in the oceans.

salt
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Water on Earth
1

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

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Water Conservation videos

• Why waste today when you can save for tomorrow.
  http//www.youtube.com/watch?vhC9uVM162BI
• Water Conservation Commercial http//www.youtube.
  com/watch?v1BHQ170BVcMNR1
• Save Water http//www.youtube.com/watch?v69Kd7F9
  BU08featurerelated
• Home water saving tips http//www.youtube.com/wat
  ch?vrRsiz5ykjuc
• Energy Conservation for kids http//www.youtube.
  com/watch?vXz8sVG6GVWw

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Earths Waters

• Chapter 1, Section 2 Property of Water

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• 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.

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Vocab

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

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Vocab

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

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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.

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Vocab

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

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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.

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

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

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

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

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Notes

• 1. Question A short way to write the chemical
  formula for water is ______

H20
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Notes
One

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

two
oxygen
hydrogen
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Notes
Surface tension

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

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Notes

• 4. Ice tea and lemonade are common ____________.

solutions
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Notes

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

dissolve
polar
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Notes

• 6. Three factors that affect dissolving
• A.
• B.
• C.

Stirring
Particle Size
Temperature
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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
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• 8. Air drying your hair is an example
  of______________.

Evaporation
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• 9. Fogging up a bathroom mirror is an example
  of _______________.

Condensation
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less

• 10. Ice is ________dense than liquid water.

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Earths Waters

• Chapter 1, Section 3 The Water Cycle

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Learning Objectives

• to describe how earths water moves through the
  water cycle.
• list ways that living things depend on the
  water cycle.

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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 Earths surface
  to the atmosphere and back to Earths surface.

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Vocab

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

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Vocab

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

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Notes
Suns

• 1. The _________ energy drives the water cycle.

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Water Cycle

• Video http//www.youtube.com/watch?v0_c0ZzZfC8c
  featurerelated

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Water Cycle Review-

• http//livingclassrooms.org/slurrp/watercycle.html
  

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(No Transcript)
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Notes

• 2. Three places from which water evaporates
• A.
• B.
• C.

Surface of oceans and large lakes
Small amounts from the soil, puddles, and your
skin
Significant amount given off by plants
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Notes
water

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

tiny dust
clouds
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Notes

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

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