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LESSON 1. Mixtures and Separation My Computer…K-Shared Drive…Criss. Students will be able to… classify matter into mixtures and pure substances. define the term “mixture”. identify 10 examples of mixtures. identify, define and give an example of the 2 types of mixtures.

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LESSON 1

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Lesson 1

LESSON 1


Mixtures and separation my computer k shared drive criss

Mixtures and SeparationMy Computer…K-Shared Drive…Criss

Students will be able to…

classify matter into mixtures and pure substances.

define the term “mixture”.

identify 10 examples of mixtures.

identify, define and give an example of the 2 types of mixtures.

Identify and describe 4 methods for separating mixtures.

TAKE NOTES !


Lesson 1

Mixtures are two or more substances that are not chemically combined and they can be physically separated. **Add this word to your science notebook.

  • Which of the substances below are “mixtures”?

    sand, soil, chicken soup, pizza, chocolate

    chip cookies,salt water

All of the substances are mixtures!!


In a mixture

In a mixture ….

*Each substance in the mixture keeps its individual properties.

*The substances can be separated by physical means.


Think about why they are mixtures

EXAMPLES OF MIXTURES

Think about why they are mixtures??

ROCK-mixture of

different kinds of

rocks

SANDWICH- mixture

of bread, meat, tomato

SODA- mixture of

sugar and water


Activity 1

Activity 1

Internet Activity:

Mixtures, Substances, Elements, and Compounds


Introduction to internet activity

Introduction to Internet Activity

  • Let’s pretend we have an extremely powerful microscope that can allow us to see the atoms of various things.

  • The following website should allow us to see the differences in elements, compounds, and mixtures.


Internet activity

Internet Activity

  • Click the link below:

  • Then, close the website (x out) and come back to the PowerPoint when you have finished the activity.

    Mixtures, Compounds, Elements Website


There are 2 types of mixtures

There are 2 types of mixtures?


Heterogeneous mixtures

Heterogeneous mixtures

  • Heterogeneous mixtures are mixtures that do not appear to be the same throughout.

    • There are particles that are large enough to be seen they can be separated from the mixture.

    • The individual substances may be in a different phase (state of matter).

  • Examples:

    • Concrete

    • Beach sand is heterogeneous since you can see different colored particles

    • Vinegar and oil salad dressing is heterogeneous since two liquid layers are present, as well as solids.


Homogeneous mixtures

Homogeneous mixtures

  • Homogenous mixtures appear to be the same throughout. There are not particles floating around that you can see.

    • The individual substances are found in the same phase (state of matter).

  • Examples:

    • Corn oil

    • White vinegar

    • A sugar solution

    • A salt solution


Separating mixtures how would you separate the mixtures below

Separating Mixtures: How would you separate the mixtures below?

  • Beach sand

  • Vinegar and oil salad dressing

  • A sugar solution

There are several methods of separating mixtures…go to the next slide and complete the activity to learn about a few separation methods.


Lesson 1

Separating Mixtures

http://activities.macmillanmh.com/science/ca/scienceinmotion/Common/SIM.html?Module=../Grade5/Chapter7-SeparatingMixtures/

  • Click on the link above and complete the following:

  • Watch the video and record notes in your science notebook showing the various methods of separating mixtures presented.

  • Click “Next” when finished to watch real examples of these methods in use. If you left something out of your original notes, add it now.

  • Click “Next” to complete the quiz game show.

    • Put each of your group members’ names in the space for your name and select any character you like.

    • Answer the six questions and record your score.


Lesson 1

  • A mixture made of solid particles of different sizes, for example sand and gravel, can be separated by putting it through a sieve.

http://www.bbc.co.uk/schools


Lesson 1

  • A mixture of water and an insoluble substance like sand can be separated by filtering.

http://www.bbc.co.uk/schools


Conclusions in your notes copy and answer the following questions

Conclusions: In your notes, copy and answer the following questions.

  • Name and draw a mixture that shows separation with a sieve.

  • Name and draw a mixture that shows separation by filtering.


Lesson 2

LESSON 2


Student objective monday november 17 2014

Student ObjectiveMonday, November 17, 2014

Students will be able to…

classify matter into mixtures and pure substances.

define the term “mixture”.

identify examples of mixtures.

identify methods for separating mixtures.


Question

Question:

  • Why is a chocolate chip cookie considered a mixture?

    • Discuss with your group and answer in your science notebook.


Chocolate chip cookies

Chocolate Chip Cookies

  • They are mixtures because they are made up of 2 different substances mixed together (cookie and chocolate chips).

  • The individual parts keep their original properties.

  • The parts can be separated easily by physical means.


Lesson 1

Review: What is a mixture?*A mixtureis a combination of two or more substances that can be separated by physical means.* Each substance in a mixture keeps its individual properties.


Separation methods using a sieve or filter

Separation Methods: Using a sieve or filter

A mixture made of

solid particles of different

sizes, for example sand

and rocks, can be

separated by putting it through a sieve.

  • A mixture of water and an insoluble substance like sand can be separated by filtering.

http://www.bbc.co.uk/schoolshttp://www.bbc.co.uk/schools


Other separation methods see the next slides

Other Separation Methods….see the next slides.


Filtration used for separating a solid from a liquid

Filtration:Used for separating a solid from a liquid

Example: Separating SAND from water.

http://www.moe.gov.sg/edumall/tl/digital_resources/chemistry8.htm


Evaporation used to obtain the solute from a solution

Evaporation:Used to obtain the solute from a solution

Example: For obtaining SUGAR (solute) from sugar water


Lesson 1

Simple Distillation:Used to obtain the solvent from a solution. Simple distillation is usually used only to separate liquids whose boiling points differ greatly.

Example: For obtaining pure water (solvent) from sea water

http://www.moe.gov.sg/edumall/tl/digital_resources/chemistry8.htm


Lesson 1

Fractional Distillation:Used to separate one liquid from a mixture of different liquids using the different boiling points to help.

Example: The distillation of a mixture of water and ethanol alcohol. Ethanol boils at 78.5 °C while water boils at 100 °C


Chromatography used to separate out one color from a mixture of colors

Chromatography:Used to separate out one color from a mixture of colors

Example: For separating out the colors in black ink

Black ink


Read summary of methods used to separate a mixture

READ: Summary of methods used to separate a mixture


Activity separating a salt and water mixture

Activity: Separating A Salt and Water Mixture

1. Go to the site below and read about the ways to separate salt from water

2. Complete the interactive section at the bottom of the page (question 14).

http://resources.schoolscience.co.uk/ICI/11-14/materials/match3pg1.html


Brain storm

Brain Storm!!

How would you go about separating a mixture of salt and sand?

With your group, list the procedure you would follow in your notebook.

Check your method by comparing it to the method presented at the website below:

http://www.zephyrus.co.uk/separatingmixtures3.html


Conclusions copy and answer this question in your science notebook

Conclusions: Copy and answer this question in your science notebook.

Complex Mixture Separation:

How could you separate a sand, salt, iron filings and marbles mixture? Explain, using pictures or diagrams to help your answer.


You completed the lesson

YOU COMPLETED THE LESSON!

  • Please see Mr. Mihalyov to share what you learned and determine your next steps.


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