Ch. 11 Ch. 11 Lesson 2Lesson 2

What are some ways What are some ways to combine matter?to combine matter?

mixturemixturemade of 2 or more made of 2 or more kinds of matter that are kinds of matter that are placed togetherplaced together

each kind of matter in a each kind of matter in a mixture:mixture:

1.1. stays the samestays the same

2.2. can be separated from can be separated from the mixturethe mixture

Mixtures Lab Interactive Online Activity

MixtureMixture Separation Separation mechanismmechanism

Physical Physical properties that properties that

allow separationallow separation

Sand & iron Sand & iron filingsfilings

magnetmagnet Magnetism of ironMagnetism of iron

SaladSalad tongstongs Color, texture, Color, texture, shape, smell, sizeshape, smell, size

Salt & waterSalt & water Heating coilHeating coil Water’s ability to Water’s ability to evaporateevaporate

Muddy waterMuddy water Filter paperFilter paper Size of mud Size of mud particlesparticles

Dust in airDust in air Filter paperFilter paper Size of particlesSize of particles

Separating Mixtures [02:29]

examples of examples of mixturesmixtures

pile of pile of pennies, pennies, nickels nickels

& dimes& dimes

tossed saladtossed salad

Chex Chex MixMix

Activity- Separating a MixtureActivity- Separating a Mixture

11 22 33 44 55 66Total # Total # of partsof parts

corn corn ChexChex

wheat wheat ChexChex

Round Round pretzelspretzels

BreadBreadstickssticks

Bagel Bagel chipschips

WindowWindowpane pane pretzelspretzels

----------------

Mixtures: Mixing Matter [01:36]

How many kinds of matter How many kinds of matter make up a mixture?make up a mixture?

2 or more2 or more

Give an example of a Give an example of a mixture.mixture.

How much of each different How much of each different substance must be in a substance must be in a

mixture?mixture?

any amountany amount

Why is a box of salt not a Why is a box of salt not a mixture?mixture?

There are There are not two not two

substances substances that can be that can be separated separated out of the out of the material.material.

solutionsolutionFormed when 1 or more Formed when 1 or more substances dissolve in substances dissolve in another (physical change)another (physical change)

Type of mixtureType of mixtureParts of a solution can be Parts of a solution can be separated separated

examples of examples of solutionssolutions

lemonadelemonade

sodasoda

Solutions [00:52]

What happens when a What happens when a substance dissolves?substance dissolves?

It breaks into tiny It breaks into tiny particles that cannot be particles that cannot be seen and spread out seen and spread out evenly in another evenly in another substance.substance.

What two states of matter What two states of matter are in a soft drink solution?are in a soft drink solution?

Liquid and gas.Liquid and gas.

How is a solution different How is a solution different from other kinds of mixtures?from other kinds of mixtures?The different parts The different parts cannot be seen in a cannot be seen in a solution.solution.

Draw pictures of Draw pictures of 3 mixtures & 3 3 mixtures & 3

solutions.solutions.

Commit and TossCommit and Toss

You can separate things from a You can separate things from a mixture.mixture.

You can mix it.You can mix it. They can be separated more easily They can be separated more easily

than compounds.than compounds. Something you can take apart.Something you can take apart. Mixture something combined that Mixture something combined that

you can separate.you can separate. Salad take out the tomatoes. Salad take out the tomatoes. Salad is a mixture. Salad is a mixture.