SIM or Strategic Intervention Material refers to teaching aid introduced into the teaching methods to stimulate the activity of the students and thereby increasing their level of understanding. Its main aim is to help the students understand a specific lesson in the easiest way as possible through activities, enrichment and assessment.

This Strategic Intervention Material will discuss on separating mixtures. It is designed to develop an understanding on different ways to separate mixtures. This contains different activities to show separating mixtures in scientific ways.

In performing the different activities, students are expected to enhance their observation, classification, analization and comprehension.

Questions asked in this S.I.M. are made not to evaluate as for instruction instead they were made to call the attention of the students needed in developing the concept in hand.

This S.I.M. is not intended for you, students, to add difficulty in understanding the lesson but to give the easiest way for you to decipher the topic’s essence. So don’t be hard on yourself in turning every page of this SIM yet bring that great smile on your face while answering the activities and questions asked on you.

Hello! I’m SIM. Call me Sissy. I’m here to help you understand our topic in Chemistry, Separating Mixtures. Don’t worry. I won’t stress you out. Just read me carefully

and I’ll promise you, I can be your friend. So are you ready? Hope you are.

In your everyday life, have you ever asked your self on how you can separate certain substances? Then, common sense just pop unto your head, “I’ll use the strainer”.

Something like that. But with me, I’ll help you gain some other knowledge on separating mixtures. I’ll give you tips to help you.

I’ll help you:

+ Relate the Science of separating mixtures in real life

+ Understand concepts in Separating Mixtures

+ Discuss different ways on separating mixtures

HELP ME!!!

“Oops. I’ve mixed up all these solids, which belong to some of my teachers. I will be in BIG trouble unless you can help me out. What will you use to separate these mixtures? Please help me!”

Iron nail-Water

Sand-Water

Red Ink and Black Ink

Water and salt

GUIDE CARD 1Filtration

This is good for separating an insoluble from a liquid. (An insoluble substance

is one that does not dissolve).

Evaporation

This is good for separating a soluble from a liquid (a soluble substance does

dissolve, to form a solution).

Magnetic separation 

is a process in which magnetically susceptible material is extracted from a mixture using a magnetic force.

Chromatography

This is good for separating dissolved substances that have different colours, such as inks and plant dyes. It works because some of the coloured substances dissolve in the liquid better than others, so they travel further up the paper.

MATCH MEEE!

I’m feeling confused. My mother asked me to separate these substances and I don’t know where to start and what to do. I know you’re ready to guide me! Just match the substances/objects in Column A to the processes given in Column B. Thank you!

Column A

Activated charcoal and lead

Water and ethanol solution

Water and salty water

Stains on clothes and organic solvents

Column B

a. Adsorption

b. Simple distillation

c. Fractional Distillation

d. Dissolution

You’re so generous of your time. Thank you for helping me.

◊I’m glad your mother won’t scold you.

◊Sorry, don’t worry. Your mother will understand.

◊Sorry. Just listen to your mother wholeheartedly.

Adsorption and desorption adsorbed gases or liquids can recovered from the adsorbent material by washing with a solvent

Dissolution (washing) separate solids by washing away those are soluble.

Simple distillation

This is good for separating a liquid from a solution.

Fractional distillation

This is good for separating two or more liquids from each other. For example, ethanol (alcohol) can be separated from a mixture of ethanol and water by fractional distillation.

It’s Experiment Time!

Salt, a mineral with the main component being sodium chloride, or NaCl, has been used for millennia to help preserve food (and make it tasty!). In ancient times, salt was used as a form of currency in some cultures. During the period when the ancient Phoenicians controlled the salt trade in the Mediterranean, salt was as expensive as gold! In this lab, we will learn how to separate salt from water through a solar process—you can use the sun to evaporate water, leaving behind the salt.

Objective: Evaporate water to form salt crystals.

Materials

Baking sheet, Black paper, Salt, Water, Cooking pot

Procedure

1. If you do not have a source of salt water (such as water from the ocean), then mix salt and water in a cooking pot until all the salt has dissolved.

Your goal is to make a fairy concentrated solution of salt and water.

2. Lay the black paper on the baking sheet. Why is it important to use black paper?

3. Pour the salt water into the baking sheet, making sure to cover the black paper.

4. Set the baking sheet somewhere warm, like outside in the sun or on a table by a window.

5. Record your observations over a number of days until all the water is gone.

The color black absorbs all frequencies of visible light, which will helps the light energize the water molecules which evaporate when they get hot. It is important that the pan is somewhere warm, because the water will more evaporate into the air more quickly. As the water evaporates, the salt doesn’t leave with it! Therefore, the concentration of salt in the water left behind increases. Eventually, the concentration gets so high that the water becomes supersaturated, and the salt will begin to recrystallize into a solid. When all of the water is gone, you will have salt!

The same process is done on a very large scale, worldwide. A common method involves allowing seawater to flow into shallow flat beds through channels that are then sealed off. The sun heats the water until all of it evaporates, leaving mountains of salt behind. The salt is then collected and cleaned. Salt’s a particularly important mineral isn’t just used for cooking—it’s an essential ingredient in agriculture, science, and countless industrial products.

Across 2.  separating an insoluble solid from a liquid. 3. __________ distillation is good for separating two or more

liquids from each other 4. separating a soluble solid from a liquid 7. __________distillation is good for separating a liquid from a solution 8. Magnetic ________ is a process in which magnetically susceptible

material is extracted from a mixture using a magnetic force

Down 1. o separating feldspars from quartz in rocks by washing

with hot concentrated phosphoric acid 5. washing with a solvent 6. The different substances in _________ are usually

easily separated from one another.

You’ll be needing:

Thumb tacks, Magnet, Sand,

Container, Water, Strainer

Step 1:

In a container, pour ¾ of water. Then put the sand and iron nails in it.

Step 2:

Try to separate thumb tacks, sand and water using your hand.

Step 3:

Done with step 2? Is it hard? Now try using the magnet. Just dip the magnet unto the water.

Step 4:

After getting the thumb tacks, use the strainer to filtrate the sand from the water.

it?

What do you call the process wherein you’ll..

separate dissolved substances that have different colours, such as inks and plant dyes. separate an insoluble solid from a liquid. Recover adsorbed gases or liquids from the adsorbent material by washing with a

solvent separate solids by washing away those that are soluble separate a soluble solid from a liquid (a soluble substance does dissolve, to form a

solution). separate a liquid from a solution for separate two or more liquids from each other extract magnetically susceptible material from a mixture using a magnetic force.

⃝ Really? That’s it?

⃝ Now, I get it!

⃝ What? -_-

⃝ Still not getting it. =.=

What are you going to use..To get a metal from a tight spaced

container

To obtain the salty water

To see the Salt in water

To recover dyes/ inks

To separate sand and rocks

CHOOSE HERE:

FILTRATION CHROMATOGRAPHY EVAPORATION

SIMPLE DISTILLATION FRACTIONAL DISTILLATION

MAGNETIC SEPARATION ADSORPTION DISSOLUTION

ANSWER CARDACTIVTY 1

1.Magnetic Separation

2.Filtration

3.Chromatography

4.Evaporation

ACTIVTY 2

1.d

2.a

3.c

4.b

ACTIVTY 4

1.dissolution

2.filtration

3.fractional

4.evaporation

5.adsorption

6.mixtures

7.simple

8.separation

ASSESSMENT CARD

1.Chromatography

2.Filtration

3.Adsorption

4.Dissolution

5.Evaporation

6.Simple distillation

7.Fractional Distillation

8.Magnetic Separation

ENRICHMENT CARD

1.Magnetic Separation

2.Simple distillation

3.Evaporation

4.Chromatography

5.Filtration

REFERENCE CARD

http://www.bbc.co.uk/bitesize/ks3/science/chemical_material_behaviour/compounds_mixtures/revision/9/

http://www.gscdn.org/library/cms/39/14339.pdf

http://www.primaryresources.co.uk/science/science3c.htm

http://www.primaryresources.co.uk/science/pdfs/7sepsolids.pdf