Important Vocabulary Important Vocabulary Words for Mixtures and Words for Mixtures and

SolutionsSolutions

Solubility

We say a substance dissolves if it spreads apart when added to a solvent (like water) so we can’t crystals/grains anymoreDissolving is a complex physical and chemical process!The substance is still there! We just can’t see it because it has spread apart.Question: How is dissolving different from melting?

SolubilitySolubility

A substance is A substance is solublesoluble if it dissolves in if it dissolves in water.water.

Example: We observed in class that table Example: We observed in class that table salt (sodium chloride) is salt (sodium chloride) is solublesoluble in water. in water. After adding it to water, it spreads apart so After adding it to water, it spreads apart so we can no longer see it!we can no longer see it!

InsolubleInsoluble

A substance is A substance is insolubleinsoluble if it will NOT if it will NOT dissolve in water.dissolve in water.

Example: We observed in class that zinc Example: We observed in class that zinc oxide is oxide is insolubleinsoluble in water. After adding it in water. After adding it to water, we can still see the zinc oxide...it to water, we can still see the zinc oxide...it doesn’t “go” anywhere!doesn’t “go” anywhere!

SolutionsSolutions

A A solventsolvent is the “larger part” of a solution. is the “larger part” of a solution. Usually, the Usually, the solventsolvent is a is a liquidliquid..

SOLUTE SOLVENT SOLUTION

+ =

SolutionsSolutions

A A solute solute is the “smaller part” of a solution. is the “smaller part” of a solution. Usually the Usually the solutesolute is a is a solidsolid..

SOLUTE SOLVENT SOLUTION

+ =

SolutionsSolutions

When a When a solutesolute and a and a solventsolvent are mixed are mixed together, this forms a together, this forms a solutionsolution. .

SOLUTE SOLVENT SOLUTION

+ =

Types of MixturesTypes 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 mixedtogether thoroughly.

What homogeneous mixtures can you think of?

Mountain Dew

Types of MixturesTypes of Mixtures

The other type of mixture isa HETEROGENEOUSMIXTURE. With a heterogeneous mixture, you can see the different “parts” of the mixture.

Sulfur and iron

What heterogeneous mixtures can you think of?

FLASH CARDSFLASH CARDS

You will be making flash cards to help you learn You will be making flash cards to help you learn today’s vocabulary! today’s vocabulary!

Each flash card should contain the following:Each flash card should contain the following: The The vocabulary word vocabulary word on one sideon one side The The definitiondefinition and a and a picturepicture on the other side on the other side

Example of a flash card:Example of a flash card:

PURE SUBSTANCE

A substance that is made of

only one thing/substanc

eFRONT

BACK

FLASH CARDSFLASH CARDSEach flash card should contain the following:Each flash card should contain the following: The The vocabulary word vocabulary word on one sideon one side The The definitiondefinition and a and a picturepicture on the other side on the other side

Make flash cards of the following vocabulary Make flash cards of the following vocabulary words:words: SoluteSolute SolventSolvent

SolutionSolution SolubleSoluble InsolubleInsoluble SaturatedSaturated SolubilitySolubility

**We have not learned these words yet! You will record pictures and We have not learned these words yet! You will record pictures and definitions for them later.definitions for them later.

DIGI Question: Mixtures and DIGI Question: Mixtures and SolutionsSolutions

In this scenario, In this scenario, what is the:what is the:

A) solventA) solvent

B) soluteB) solute

C) solutionC) solution

Sugar is added to water in this bird feeder to

create a sweet treat for hummingbirds!