Important Vocabulary Words for Mixtures and Solutions

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Important Vocabulary Words for Mixtures and
Solutions
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Solubility

• We say a substance dissolves if it spreads apart
  when added to a solvent (like water) so we cant
  crystals/grains anymore
• Dissolving is a complex physical and chemical
  process!
• The substance is still there! We just cant see
  it because it has spread apart.
• Question How is dissolving different from
  melting?

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Solubility

• A substance is soluble if it dissolves in water.
• Example We observed in class that table salt
  (sodium chloride) is soluble in water. After
  adding it to water, it spreads apart so we can no
  longer see it!

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Insoluble

• A substance is insoluble if it will NOT dissolve
  in water.
• Example We observed in class that zinc oxide is
  insoluble in water. After adding it to water, we
  can still see the zinc oxide...it doesnt go
  anywhere!

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Solutions

• A solvent is the larger part of a solution.
  Usually, the solvent is a liquid.

SOLUTE
SOLVENT
SOLUTION
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Solutions

• A solute is the smaller part of a solution.
  Usually the solute is a solid.

SOLUTE
SOLVENT
SOLUTION
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Solutions

• When a solute and a solvent are mixed together,
  this forms a solution.

SOLUTE
SOLVENT
SOLUTION
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Types of Mixtures
When a solute dissolves in a solvent to make a
solution, this is called a HOMOGENEOUS
MIXTURE. You cannot see any separate parts
because it is all mixed together thoroughly.
Mountain Dew
What homogeneous mixtures can you think of?
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Types of Mixtures
Sulfur and iron
The other type of mixture is a HETEROGENEOUS MIXTU
RE. With a heterogeneous mixture, you can see
the different parts of the mixture.
What heterogeneous mixtures can you think of?
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FLASH CARDS

• You will be making flash cards to help you learn
  todays vocabulary!
• Each flash card should contain the following
• The vocabulary word on one side
• The definition and a picture on the other side
• Example of a flash card

A substance that is made of only one
thing/substance
PURE SUBSTANCE
BACK
FRONT
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FLASH CARDS

• Each flash card should contain the following
• The vocabulary word on one side
• The definition and a picture on the other side
• Make flash cards of the following vocabulary
  words
• Solute Solvent Solution
• Soluble Insoluble
• Saturated Solubility
• We have not learned these words yet! You will
  record pictures and definitions for them later.

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DIGI Question Mixtures and Solutions

• In this scenario, what is the
• A) solvent
• B) solute
• C) solution

Sugar is added to water in this bird feeder to
create a sweet treat for hummingbirds!