elements, compounds, and mixtures small, medium, large

Elements, Compounds, Elements, Compounds, and Mixturesand Mixtures

Small, Medium, LargeSmall, Medium, Large

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.

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

ElementsElements

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

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

ElementsElements

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.

CompoundsCompounds

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

Compound ExamplesCompound Examples

Sodium (Na) + Chlorine (Cl) = Sodium ChlorideSodium (Na) + Chlorine (Cl) = Sodium Chloride

CompoundsCompounds

Sugar – CSugar – C66HH1212OO66

Caffeine- CCaffeine- C88HH1010NN44OO22

Water – HWater – H22OO

Carbon Dioxide – COCarbon Dioxide – CO22

Salt – NaClSalt – NaCl

CompoundsCompounds

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.

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.

MixturesMixtures

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

Elements, Compounds, and Elements, Compounds, and MixturesMixtures

http://www.chem.purdue.edu/gchelp/atoms/elements.html

http://www.darvill.clara.net/multichoice/emc.htm

Element, Compound, or Element, Compound, or Mixture?Mixture?RocksRocks

Element, Compound, or Element, Compound, or MixtureMixture??RocksRocks

Element, Compound, or Element, Compound, or Mixture?Mixture?

CopperCopper

ElementElement, Compound, or , Compound, or Mixture?Mixture?

CopperCopper

Element, Compound, or Element, Compound, or Mixture?Mixture?

Jelly BeansJelly Beans

Element, Compound, or Element, Compound, or MixtureMixture??

Jelly BeansJelly Beans

Element, Compound, or Element, Compound, or Mixture?Mixture?

Table SugarTable Sugar

Element, Element, CompoundCompound, or , or Mixture?Mixture?

Table SugarTable Sugar

Element, Compound, or Element, Compound, or Mixture?Mixture?DiamondDiamond

ElementElement, Compound, or , Compound, or Mixture?Mixture?DiamondDiamond

Element, Compound, or Element, Compound, or Mixture?Mixture?

TeaTea

Element, Compound, or Element, Compound, or MixtureMixture??

TeaTea

Element, Compound, or Element, Compound, or Mixture?Mixture?

SaltSalt

Element, Element, CompoundCompound, or , or Mixture?Mixture?

SaltSalt

Element, Compound, or Element, Compound, or Mixture?Mixture?Neon GasNeon Gas

ElementElement, Compound, or , Compound, or Mixture?Mixture?Neon GasNeon Gas

Element, Compound, or Element, Compound, or Mixture?Mixture?

SaladSalad

Element, Compound, or Element, Compound, or MixtureMixture??

SaladSalad

Element, Compound, or Element, Compound, or Mixture?Mixture?Pure WaterPure Water

Element, Element, CompoundCompound, or , or Mixture?Mixture?Pure WaterPure Water

Element, Compound, or Element, Compound, or Mixture?Mixture?AluminumAluminum

ElementElement, Compound, or , Compound, or Mixture?Mixture?AluminumAluminum

Element, Compound, or Element, Compound, or Mixture?Mixture?LemonadeLemonade

Element, Compound, or Element, Compound, or MixtureMixture??LemonadeLemonade

Element, Compound, or Element, Compound, or Mixture?Mixture?

SilverSilver

ElementElement, Compound, or , Compound, or Mixture?Mixture?

SilverSilver

Element, Compound, or Element, Compound, or Mixture?Mixture?

SandSand

Element, Compound, or Element, Compound, or MixtureMixture??

SandSand

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