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    Exploring The Wonders of Water 1

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    Shadrak Aldrick Lim

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    Exploring The Wonders of Water 1

    Uploaded by

    Shadrak Aldrick Lim
    6 views11 pages

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    Exploring the Wonders of Water 1

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    Copyright:

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    6 views11 pages

    Exploring The Wonders of Water 1

    Uploaded by

    Shadrak Aldrick Lim

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    of 11

    Exploring the

    Wonders of Water
    Water is a fascinating and essential chemical substance that makes up a
    large portion of our planet and our own bodies. Its unique properties and
    versatile nature have a profound impact on our world.

    by Cheryl Bedano
    Molecular Structure of Water
    Molecular Composition Covalent Bonds Bent Geometry
    Water is composed of The bonds between the The unique bent shape
    two hydrogen atoms hydrogen and oxygen of the water molecule is
    and one oxygen atom, atoms are covalent, a result of the
    forming the familiar sharing electrons and electronegative oxygen
    H2O molecular creating a stable atom and the two
    structure. molecule. hydrogen atoms.
    Physical Properties of Water
    1 High Boiling Point 2 Low Freezing Point
    Water has a relatively high boiling point Water freezes at 0°C (32°F), making it a
    of 100°C (212°F) due to its hydrogen liquid at room temperature.
    bonding.
    3 Cohesive Forces 4 High Specific Heat
    Water molecules are attracted to each Water has a high specific heat capacity,
    other, creating surface tension and allowing it to absorb and store large
    capillary action. amounts of thermal energy.
    Hydrogen Bonding in Water
    Electronegativity 1
    The unequal sharing of electrons in
    the water molecule creates a slightly
    negative charge on the oxygen atom 2 Attraction
    and slightly positive charges on the The slight charges on the water
    hydrogen atoms. molecule allow for the formation of
    hydrogen bonds, where the hydrogen
    atoms of one water molecule are
    Unique Properties 3 attracted to the oxygen atoms of
    Hydrogen bonding is responsible for neighboring water molecules.
    many of water's unique properties,
    such as its high boiling point, surface
    tension, and ability to dissolve a wide
    range of substances.
    Density and Thermal Properties of Water
    Density Thermal Expansion
    Water is unique in that it is most dense at Water expands when it freezes, allowing ice
    4°C (39°F), unlike most other liquids, which to float on the surface of liquid water.
    become less dense as they cool.

    High Specific Heat Evaporative Cooling


    Water has a high specific heat capacity, The evaporation of water requires a large
    meaning it can absorb and store large amount of energy, resulting in a cooling
    amounts of thermal energy, which helps effect, which is important for regulating
    regulate the Earth's temperature. body temperature.
    Polarity and Solvent Properties of Water
    Polarity Solvent Biological Importance
    The unequal Water's polarity The solvent
    distribution of allows it to dissolve a properties of water
    electrons in the water wide range of polar are essential for the
    molecule gives it a and ionic substances, functioning of living
    slight positive and making it an organisms, as it
    negative charge, excellent solvent for allows for the
    making it a polar many chemical transport and
    molecule. reactions. chemical reactions
    necessary for life.
    Demonstrating Water Properties
    Surface Tension
    Carefully place a paperclip on the surface of water to demonstrate the
    cohesive forces and surface tension of water.

    Capillary Action
    Observe how water can be drawn up a narrow tube or paper towel
    through capillary action, showcasing the adhesive and cohesive
    properties of water.

    Density
    Gently lower an ice cube into a glass of water to observe how the ice
    floats, demonstrating the unique density properties of water.
    The Unique and Vital Role of Water
    Water covers over 70% of the Earth's surface
    Ubiquity and is essential for all known forms of life.

    Versatility Water's unique properties make it a versatile


    substance that can be used in a wide range of
    applications, from industry to agriculture to
    daily life.

    Importance Water is a crucial component for the


    functioning of living organisms, and its
    availability and quality are essential for human
    health and the health of the planet.

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