Intro to water
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Intro to Water. Understanding and Comprehending why water has unique and special properties. What is an atom?. Atoms- are the smallest building blocks of matter All matter is composed of atoms When two or more atoms join its called a molecule. Understanding Parts of the Atom.

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Intro to Water

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Intro to water

Intro to Water

Understanding and Comprehending why water has unique and special properties


What is an atom

What is an atom?

  • Atoms- are the smallest building blocks of matter

  • All matter is composed of atoms

  • When two or more atoms join its called a molecule


Understanding parts of the atom

Understanding Parts of the Atom

  • To understand why atoms join you have to understand the parts of the atom

  • Nucleus- center of atom that has protons and Neutrons in it

  • Neutrons- have no charge, found in Nucleus

  • Protons- have positive electric charge found in Nucleus

  • Electron- small negatively charged particles that have almost no mass, “orbit” around nucleus


Why do different atoms combine

Why do different atoms combine?

  • Atoms join because they are unstable

  • All atoms wish to be stable

  • To achieve this they need to obtain a full outer shell of electrons

  • This happens when atoms share, lose or gain electrons

  • Full outer shell usually contains 8 electrons: called Octet Rule


Construction of water

Construction of Water

  • Water is made up of two elements; Hydrogen and Oxygen

  • Neither has a full outer shell of electrons so they join

  • However electrons are not shared equally and this gives water unique traits


Water a polar molecule

Water a Polar Molecule

  • Because electrons are not shared evenly, water has a slightly electrical charge

  • You call this type of molecule a Polar molecule- a molecule that has slight electrical charges

  • This gives water 4 unique traits


4 unique properties of water

4 Unique Properties of Water

  • 1. Universal Solvent- it can dissolve most anything placed in it

  • 2. Expands when Frozen- Water can only freeze in a specific way; as a result it expands when frozen causing it to become less dense

  • 3. Capillary Action- water can actually “defy” gravity and pull itself upwards (Water ADHESION)

  • 4. Surface Tension- water molecules “sticking” together creating the force of COHESION between them


Other unique traits

Other Unique Traits

  • High Specific Heat -water is 23 times “better” at retaining heat then air: it is also the only known substance to be found in all 3 states of matter on Earth

  • HEAVY- 33ft of water depth = the same weight as 17 miles of air (ground uppermost atmosphere)


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