elements, compounds, and mixtures small, medium, large
TRANSCRIPT
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Elements, Compounds, Elements, Compounds, and Mixturesand Mixtures
Small, Medium, LargeSmall, Medium, Large
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Fill in Hand Organizers as We Go!Fill in Hand Organizers as We Go!
Write the definition (in your own words) for Write the definition (in your own words) for compound and mixture.compound and mixture.
Five examples of a compound – 1 on each Five examples of a compound – 1 on each finger.finger.
Five examples of a mixture – 1 on each Five examples of a mixture – 1 on each finger.finger.
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ElementsElements
consists of only one kind of atom, consists of only one kind of atom,
cannot be broken down into a simpler type cannot be broken down into a simpler type of matter by either physical or chemical of matter by either physical or chemical means, and means, and
can exist as either atoms (e.g. argon) or can exist as either atoms (e.g. argon) or molecules (e.g., nitrogen). molecules (e.g., nitrogen).
Each element is uniqueEach element is unique
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ElementsElements
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ElementsElements
With over 100 With over 100 elements, it is elements, it is important to classify important to classify them in terms of their them in terms of their chemical properties chemical properties (e.g. metal/non-(e.g. metal/non-metal). metal).
The elements are The elements are organized in the organized in the Periodic Table Periodic Table
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Element ExamplesElement Examples
Elements and their atoms are represented Elements and their atoms are represented by symbols.by symbols. Argon, ArArgon, Ar Lead, Pb Lead, Pb Gold, AuGold, Au Aluminium, AlAluminium, Al Oxygen, OOxygen, O Carbon, CCarbon, C Potassium, KPotassium, K This is the element Argon
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ElementsElements
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CompoundsCompounds
consists of atoms of two or more different consists of atoms of two or more different elements elements bonded togetherbonded together, ,
can be broken down into a simpler type of can be broken down into a simpler type of matter (elements) by chemical means (but matter (elements) by chemical means (but not by physical means), not by physical means),
has properties that are different from the has properties that are different from the elements that it is made of. elements that it is made of.
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CompoundsCompounds
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CompoundsCompounds
A compound is a substance A compound is a substance formed when two or more formed when two or more elements are chemically elements are chemically joined. Water, salt, and sugar joined. Water, salt, and sugar are examples of compounds. are examples of compounds.
When the elements are joined, When the elements are joined, the atoms lose their individual the atoms lose their individual properties and have different properties and have different properties from the elements properties from the elements they are composed of. they are composed of.
Water molecule
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Compound ExamplesCompound Examples
Sodium (Na) + Chlorine (Cl) = Sodium ChlorideSodium (Na) + Chlorine (Cl) = Sodium Chloride
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CompoundsCompounds
Sugar – CSugar – C66HH1212OO66
Caffeine- CCaffeine- C88HH1010NN44OO22
Water – HWater – H22OO
Carbon Dioxide – COCarbon Dioxide – CO22
Salt – NaClSalt – NaCl
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CompoundsCompounds
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MixturesMixtures
consists of two or more different elements consists of two or more different elements and/or compounds physically intermingled, and/or compounds physically intermingled,
can be separated into its components by can be separated into its components by physical means, and physical means, and
often retains many of the properties of its often retains many of the properties of its components. components.
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Salad anyone?Salad anyone?
Mixtures are two or more Mixtures are two or more substances that are mixed substances that are mixed together but not chemically together but not chemically joined.joined.A good example of a A good example of a mixture is a salad. There mixture is a salad. There are tomatoes, lettuce, are tomatoes, lettuce, cucumbers, and salad cucumbers, and salad dressing all mixed together. dressing all mixed together. No chemical reactions occur No chemical reactions occur between the vegetables and between the vegetables and the dressing. You can the dressing. You can separate each of the separate each of the vegetables from each other. vegetables from each other.
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MixturesMixtures
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Compounds/Mixture ReviewCompounds/Mixture Review
When elements CHEMICALLY combine they form When elements CHEMICALLY combine they form compounds. They can be separated by chemical means compounds. They can be separated by chemical means
SaltSalt WaterWater Carbon DioxideCarbon Dioxide
When elements PHYSCIALLY combine, they form When elements PHYSCIALLY combine, they form mixtures. They can be separated by physical means. mixtures. They can be separated by physical means.
Chicken Noodle SoupChicken Noodle Soup SaladSalad Salt and WaterSalt and Water
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Elements, Compounds, and Elements, Compounds, and MixturesMixtures
http://www.chem.purdue.edu/gchelp/atoms/elements.html
http://www.darvill.clara.net/multichoice/emc.htm
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Element, Compound, or Element, Compound, or Mixture?Mixture?RocksRocks
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Element, Compound, or Element, Compound, or MixtureMixture??RocksRocks
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Element, Compound, or Element, Compound, or Mixture?Mixture?
CopperCopper
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ElementElement, Compound, or , Compound, or Mixture?Mixture?
CopperCopper
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Element, Compound, or Element, Compound, or Mixture?Mixture?
Jelly BeansJelly Beans
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Element, Compound, or Element, Compound, or MixtureMixture??
Jelly BeansJelly Beans
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Element, Compound, or Element, Compound, or Mixture?Mixture?
Table SugarTable Sugar
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Element, Element, CompoundCompound, or , or Mixture?Mixture?
Table SugarTable Sugar
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Element, Compound, or Element, Compound, or Mixture?Mixture?DiamondDiamond
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ElementElement, Compound, or , Compound, or Mixture?Mixture?DiamondDiamond
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Element, Compound, or Element, Compound, or Mixture?Mixture?
TeaTea
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Element, Compound, or Element, Compound, or MixtureMixture??
TeaTea
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Element, Compound, or Element, Compound, or Mixture?Mixture?
SaltSalt
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Element, Element, CompoundCompound, or , or Mixture?Mixture?
SaltSalt
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Element, Compound, or Element, Compound, or Mixture?Mixture?Neon GasNeon Gas
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ElementElement, Compound, or , Compound, or Mixture?Mixture?Neon GasNeon Gas
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Element, Compound, or Element, Compound, or Mixture?Mixture?
SaladSalad
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Element, Compound, or Element, Compound, or MixtureMixture??
SaladSalad
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Element, Compound, or Element, Compound, or Mixture?Mixture?Pure WaterPure Water
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Element, Element, CompoundCompound, or , or Mixture?Mixture?Pure WaterPure Water
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Element, Compound, or Element, Compound, or Mixture?Mixture?AluminumAluminum
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ElementElement, Compound, or , Compound, or Mixture?Mixture?AluminumAluminum
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Element, Compound, or Element, Compound, or Mixture?Mixture?LemonadeLemonade
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Element, Compound, or Element, Compound, or MixtureMixture??LemonadeLemonade
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Element, Compound, or Element, Compound, or Mixture?Mixture?
SilverSilver
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ElementElement, Compound, or , Compound, or Mixture?Mixture?
SilverSilver
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Element, Compound, or Element, Compound, or Mixture?Mixture?
SandSand
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Element, Compound, or Element, Compound, or MixtureMixture??
SandSand
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NotesNotes
Detailed notes are located at:Detailed notes are located at:
http://www.middleschoolscience.com/elements-compounds-mixtures-notes-isn.pdf
Flow Chart:Flow Chart:http://www.middleschoolscience.com/matter-flow-chart-isn.pdf