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Third Year Science

Introduction

Module 1 Importance of Chemistry

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Basic Education Assistance for Mindanao (BEAM) project. Prior approval must be

given by the author(s) or the BEAM Project Management Unit and the source must

be clearly acknowledged.

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Mind Map

The Mind Map displays the organization and relationship between the concepts and activities in this Learning Guide in a visual form. It is included to provide visual clues on the structure of the guide and to provide an opportunity for you, the teacher, to reorganize the guide to suit your particular context.

Assessment

All six Stages of Learning in this Learning Guide may include some advice on possible formative assessment ideas to assist you in determining the effectiveness of that stage on student learning. It can also provide information about whether the learning goals set for that stage have been achieved. Where possible, and if needed, teachers can use the formative assessment tasks for summative assessment purposes i.e as measures of student performance. It is important that your students know what they will be assessed on.

Stages of Learning

The following stages have been identified as optimal in this unit. It should be noted that the stages do not represent individual lessons. Rather, they are a series of stages over one or more lessons and indicate the suggested steps in the development of the targeted competencies and in the achievement of the stated objectives.

1. Activating Prior Learning

This stage aims to engage or focus the learners by asking them to call to mind what they know about the topic and connect it with their past learning. Activities could involve making personal connections.

Background or purpose

Students have background knowledge about matter. This stage aims to look into that prior knowledge and use it as a basis in defining Chemistry.

Strategy

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Activity 1 “Say Something About Me” (6 min)

Materials needed:

• manila paper • pilot pen

Procedure:

Divide the students into groups of 5.

Post the word “Matter” on the board . Ask all the groups to think of appropriate words/concepts related to the one posted. Let them write these words on the blank circles provided to show the connection of ideas. Additional circles may be drawn as needed. Give them 3 minutes to do the task.

Formative Assessment

Checklist for Group Work will be used. (refer to page 28)

Roundup

Using appropriate questions, guide the students to come up with a definition of Chemistry. Chemistry is a branch of science which deals with matter: its properties, composition, structure , changes and energy that accompanies these changes. Since matter is all around us so do chemistry.

2. Setting the Context

This stage introduces the students to what will happen in the lessons. The teacher sets the objectives/expectations for the learning experience and an overview how the learning experience will fit into the larger scheme.

Background or purpose

In this stage, the students will do an activity as an example to give them an insight that chemistry is everywhere and appreciate its importance.

Strategy

Group Work to instill in their minds the essence of helping one another in attaining a common goal.

Option 1

Activity 2- How To Get Iron Out Of Breakfast Cereal (15 minutes)

Materials needed:

• 2-3 cups iron fortified cereal

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• magnet • bowl

• spoon or other utensil • water

• blender (optional) • tissue

Procedure:

Ask the students if they are familiar with the word iron. Solicit example of materials made of iron.

Ask “Do you want to know what iron looks like?”

Inform the students that they will perform a magic by doing a simple chemistry activity. Divide the class into groups of 8.

Distribute Student Activity Sheet 1- How To Get Iron Out of Breakfast Cereal ( refer to page10.

Make sure students understand the instruction. Move around to ensure that students are on task.

After the activity, tell the students that the activity is just one among many studies done in chemistry.

Instruct the group to write a journal on how they feel about chemistry based on the experiment done.

Option 2 “Chemistry Everywhere!”

Post the word “CHEMISTRY” on the board. Encircle it and draw connecting lines and figures like the one presented below. Guide the students to find specific application of chemistry in the different fields identified (e.g home, school, industry, office,etc)

Formative Assessment

Performance Assessment (refer to page 30)

Roundup

Cooking is Chemistry. When you study about it, you come to understand a bit about how

CHEMISTRY

In the

school

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explanation for everyday things, like why laundry detergent works better in hot water or how baking soda works or why not all pain relievers work equally well on headaches. If you know some chemistry, you can make educated choices about everyday products that you can use.

In other words, knowledge in chemistry guides chemist in the development of new

processes to manufacture new products,in making new compounds and in explaining those changes that occur naturally.

3. Learning Activity Sequence

This stage provides the information about the topic and the activities for the students. Students should be encouraged to discover their own information.

Background or purpose

Students are given an activity for them to realize that whoever they are, wherever they live,chemistry is present in everything they do,improving their lifestyle and the world itself.

Strategy

Reading-Writing Connection is a strategy used to make reading more concept oriented and more interesting.

In here, each group will describe a given picture. They will then receive a reading text which explains the picture assigned to them. The guide question/s will guide the students on what to focus in their reading material thus making reading more meaningful and interesting.

Activity 3- CHEMISTRY- You Can't Live Without It! (20 minutes)

Materials needed:

• pictures of different situations • marking pens

• reading material • manila paper

Procedure:

Post the pictures on the wall of the classroom. See to it that these pictures are at a certain distance from each other to provide space for the group assigned to it. Divide the class into 9 groups.

Inform them that each group will be given an activity sheet (refer to page 11) and a reading material entitled “Chemistry-You can't live without it!” (refer to pages 13 - 24 for the pictures and reading materials).

Assign one group for each picture.

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Ask them to read and record the key information learned from the reading material. This time get them to compare their own descriptions with the information given in the reading material.

Let each group assign a reporter to discuss their work to the whole class.

Formative Assessment

Checklist for Oral Report and Rubric for group performance will be used. (refer to page 29 for the Rubric for Oral Report and page 30 for the rubric for group performance)

Roundup

Students should be able to realize that chemistry is part of the fabric of life--from the air thatwe breath, the water that we drink, the soil where we build our homes to the colors that surround us and the electronic devices that make our life so convenient. Chemistry affects our life and the way we live.

4. Check for Understanding of the topic or skill

This stage is for teachers to find out how much students have understood before they apply it to other learning experiences.

Background or purpose

Students should have gained an understanding on the importance and role of chemistry in society and industry. This will help them do theirtask in this stage.

Strategy

Mind Map is a visual representation or graphic organizer that demonstrates connections among key concepts and ideas. It is used to summarize what they understood from the discussion done earlier.

Activity 4- Map Me Out! (20 minutes)

Make sure that students are now back in their proper seats.

Briefly review the students on the different situations depicted by the pictures shown previously. Focus on the role of chemistry.

Distribute Student Activity Sheet 3- Map Me Out! (refer to page 25) Emphasize that the activity will be done individually.

Discuss the instructions carefully to ensure that they know their task.

Go around,check if students are doing their work and guide them in doing the activity.

Formative Assessment

Check the concepts included in their mind map as well as the connection and flow of ideas.

Roundup

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5. Practice and Application

In this stage, students consolidate their learning through independent or guided practice and transfer their learning to new or different situations.

Background or purpose

With the concepts learned from the previous activities, students will beable to express their knowledge on the importance and role of chemistry in their lives through a song, poem, dance,story or poster.

Strategy

Act It Out” –a strategy where students are asked to express their understanding on the importance and role of chemistry through a poem, dance, story or a drawing. It involves using the key information about a lesson and it caters to the different learning styles of the students. It enhances their skills and invites maximum participation.

Activity 5 – Act It Out! (35 minutes)

Tell the students that in the next activity they will again express their understanding on the importance and role of chemistry in their lives. Emphasize that this will be done through a song, poem, dance, story or poster.

Prepare drawing materials for those who would prefer to draw. Divide the class into groups of 10.

Let the group decide as to how they will express it.

Prepare and assign certain location for students' rehearsal. They should be easily

monitored/guided so that they cannot disturb other classes. Give them 15 minutes to do this activity.

After each presentation,give due recognition for their effort . You may discuss issues or clarify misconceptions.

Formative Assessment

Performance Assessment through rubric.( refer to page 30)

Roundup

Chemistry is the study of our material world. We study the composition of materials and how their structures affect their properties and behavior. Many things we use daily are products of chemistry.

Almost everything in the bathroom exists because of chemistry, from the toothbrush and soap to the shampoo, flagrancies and moisturizers.

The wardrobe would also be empty without the contributions of chemistry. Our clothes are constantly improving in style and chemistry makes them easier to wash, more stretchy, anti-static and anti-allergic.

Almost all equipments in the office such as computers, glue, clips, phones and chairs are products of chemistry.

In our home, chemistry products are everywhere:plates, spoons, cups, pans, detergents, soap, bleach and many more.

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Chemistry also contributes to the study of Physics. Motion and force of an object depend on the amount of matter present in it.

All these mentioned products and chemistry related field of sciences only show that anywhere we go, chemistry is there.

6. Closure

This stage brings the series of lessons to a formal conclusion. Teachers may refocus the objectives and summarize the learning gained. Teachers can also foreshadow the next set of learning experiences and make the relevant links.

Background or purpose

Students already know about the importance, role and contribution of chemistry to other sciences. This awareness will help them predict possible consequences of a given future event.

Strategy

Future Wheel is a strategy that allows the students to predict consequences resulting from certain events.

In this activity, students are asked to predict some possible consequences if more chemical products are manufactured in the year 2008 and beyond.

Activity 6- CHEMISTRY-TOMORROW AND BEYOND! (20 minutes)

Divide the class into 5 groups.

Distribute Student Activity Sheet 4 “Chemistry – tomorrow and Beyond” (refer to page 26) Explain the procedure thoroughly.

Show a sample future wheel to aid understanding and guide them in their next task. Move around and guide them in performing their task.

Formative Assessment

Completed Future Wheel of each group will be checked. Students will be asked how they felt while doing the activity.

Roundup

From the series of activities done, students will able to realize the importance of chemistry -- that in our society, be it in the school, at home,in the office, in

transportation, and everywhere, chemistry is always there. Chemistry could help explain some of the things we observe and encounter everyday.

Chemistry also contributes to the understanding of other sciences.

Teacher Evaluation

(To be completed by the teacher using this Teacher’s Guide) The ways I will evaluate the success of my teaching this unit are: 1.

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Student Activity Sheet 1

How To Get Iron Out of Breakfast Cereal

Materials(per group):

iron fortified cereal

bowl

tap water

spoon

blender(optional)

bar magnet

Procedure:

1. Pour the cereal into the bowl or blender.

2. Add sufficient water to completely cover the cereal (it's not an exact

measurement-you can add as much as you like).

3. Mash the cereal with a spoon or mix it with water using a blender. The more

finely ground the cereal is,the easier it will be to get the iron.

4. Stir the magnet through the crushed cereal. Iron is heavy and will sink, so be

sure to pay attention to the bottom of the bowl. If you used a blender, make

sure you can get to the particles at the bottom of the jar.

Answer briefly:

1. What had you observed?

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Student Activity Sheet 2

CHEMISTRY-YOU CAN'T LIVE WITHOUT IT!

Materials:

picture

marking pen

manila paper

Procedure I:

1. Study the picture assigned to your group.

2. Write a paragraph describing how chemistry is present in the picture.

3. Write your answer on the left column of the chart under the heading “Before

reading”. This is

found in the activity sheet 2.1 “Chemistry-You can't live

without it!”.

4. Post it beside the picture.

Procedure II:

1. Read the text given by the teacher.

2. Record the key information learned from the reading material. Write it on the

right column of the chart under the heading “After reading”.

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Student Activity Sheet 2.1

CHEMISTRY-YOU CAN'T LIVE WITHOUT IT!

Directions: Describe the picture assigned to your group. Focus your description on

how chemistry is used in the situation. Record your ideas on the first column

(Before Reading). When you are done reading the materials, record the key

information learned from it. Write your ideas on the second column (After

Reading.)

Importance and Role of Chemistry

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Student Activity Sheet 2.2

CHEMISTRY-YOU CAN'T LIVE WITHOUT IT!

In The Apartment

Almost everything in the bathroom exists

because of chemistry, from the toothbrush

and soap to the shampoo, fragrances and

moisturizers. The toothpaste wouldn't lie

conveniently on the toothbrush bristles if it

didn't contain a water based soluble

polymer to thicken it. The shampoo no

longer comes in glass bottle but in plastic

tubes and containers that absorb the

impact when dropped onto hard surfaces.

The wardrobe would also be empty without

the contribution of chemistry. Our clothes

are constantly improving in style and

function as chemistry makes them easier to

wash, more stretchy, static,

anti-allergic or anti-perspiration. Modern

clothing is now made from a range of

natural and synthetic fibers with chemicals such as silicon helping to put the

bounce into wools and to make our clothes softer and more durable. Silicon also

gives brilliant color to modern dyes and make shoes, raincoats and sportswear

waterproof and long lasting.

Soluble easily dissolved in or as if in liquid and especially water.

Polymer a natural or synthetic chemical structure where two or more like molecules are joined to form a more complex molecular structure.

Antistatic reducing, removing or preventing the build up of static electricity.

Silicon an element used for steel making, in other alloys and in semiconductors.

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Student Activity Sheet 2.3

CHEMISTRY-YOU CAN'T LIVE WITHOUT IT

In The Office

The old-fashioned typewriter seems

amazingly primitive in an age when

computers are everywhere. But this

revolution in the way we work could not

have happened without chemistry. Almost

all the equipment on the desk is made of

plastic - the monitor and keyboard, the

mouse and printer, the connection and

circuit boards. Chemistry even contributes

to the clips, glue, and rubber bands. It

takes the thermoplastic resins to make the

diskettes and synthetic rubber to

manufacture the perfect little sphere on

the underside of your mouse.

Chemistry has also advanced the revolution

in mobile communications. We've seen

extraordinary changes from the walkie-talkie of World War II, to the early mobile

phones of the 1980's (the size of a brick - remember those?) to today's lightweight

devices that slip into a pocket, connect you to the internet and allow you to play

games, send pictures and many more.

Thermoplastic resins a material that softens when heated and hardens again when cooled.

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Student Activity Sheet 2.4

CHEMISTRY-YOU CAN'T LIVE WITHOUT IT!

Breakfast

Take chemistry away and the baby has no plate, no spoon and no cup. The

chemicals in each make it just right for the job to do. Chemists and designers are

constantly improving these everyday items to give

them the qualities we want - from ease of use to

greater resistance to dishwashing machines.

Thanks to a tough, slippery plastic called Teflon,

Sarah's mother can cook breakfast without having it

stick to the pan. Teflon also makes life smoother as a

coating for ovens and baking tins. It makes barbecue

gloves non-scorching and helps flat iron to glide over

the clothes. Elsewhere, it's use in fireproof suits for

bearings and ball joints in car engines (it could one

day eliminate the need for lubrication.) Surgeons are

even using Teflon tubing to replace sections of artery.

Teflon a material used to coat cooking utensils and in industrial applications where sticking is to be avoided.

Scorching capable of causing burns.

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Student Activity Sheet 2.5

CHEMISTRY-YOU CAN'T LIVE WITHOUT IT!

Cleaning and Dusting

Without detergents (which of course are

made of chemicals), people would find it

hard work keeping their homes clean and

hygienic. By safely getting rid of dirt,

germs, bacteria and other contaminants,

detergents help us to stay healthy, to care

for our homes and possessions and to

make our surroundings more pleasant.

The really dirty jobs around the home may

need bleach - a powerful cleansing agent

known to our grandparents. Bleach has

been used since 1913 when researchers

developed a formula that was affordable

and easy to use. Generations of home

owners have since used it to keep their

surfaces spotless and their families

healthier.

Contaminant something that pollutes.

Bleach to make whiter or lighter especially by physical or chemical removal of color.

Sources: http://www.chemistryandyou.org/base_eng.htm

http://search.yahoo.com/search?p=definition+of+contaminates&ei=UTF-8&fr=FP-tab-web-t500&x=wrt

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Student Activity Sheet 2.6

CHEMISTRY-YOU CAN'T LIVE WITHOUT IT!

Enjoying Clean Water

Water is essential to life but difficult to

keep safe from contamination. Making

impure water clean and fit to drink

requires the use of chemicals-notably

chlorine which acts as a powerful

disinfectant. Added to water in minute

quantities, chlorine quickly kills bacteria

and other microbes and ensures clean

water right to the tap. Today, almost all of

the world's drinking water depends on

chlorination.

Chlorine was first used in drinking water in

the late 19

th

century to control the spread

of water-borne diseases such as typhoid

fever, cholera, dysentery and

gastro-enteritis. Between them, these have killed

more people than all the wars in history. According to the World Health

Organization, “ The adoption of drinking water chlorination has been one of the

most significant advances in public health protection.

Chlorine a halogen element that is isolated as a heavy greenish-yellow diatomic gas of pungent odor and is used especially as a bleach, oxidizing agent, and disinfectant in water purification.

Disinfectant an agent that frees from infection: a chemical that destroys vegetative forms of harmful microorganisms (as bacteria and fungi).

Typhoid is a bacterial infection characterized by diarrhea, systemic diseases, and a rash most commonly caused by the bacteria Salmonella typhi.

Cholera is an acute diarrheal illness caused by a bacterium, Vibrio cholerae.

Dysentery a disease characterized by severe diarrhea with passage of mucus and blood and usually caused by infection.

Gastroenteritis inflammation of the lining membrane of the stomach and the intestines characterized especially by nausea, vomiting, diarrhea and cramps.

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Student Activity Sheet 2.6

CHEMISTRY-YOU CAN'T LIVE WITHOUT IT!

In The Surgery

Chemistry is used to manufacture nearly all the devices

and drugs used in surgeries and hospitals. In the last few

decades, new medicines and new medical equipment

and processes have helped to cure many more diseases

and have vastly increased our life expectancy. Millions of

lives have been saved and improved with the help of

chemistry.

Much of the progress is due to new kinds of plastics.

Examination gloves, disposable syringes, feeding tubes,

blood bags, heart valves, pacemaker and many other

medical devices have been made possible or been

stronger and more reliable - as a result of these,

lightweight and versatile materials. The fact that plastics are compatible with

other materials makes them more useful to manufacturers.

Feeding tube is a medical device used to provide nutrition to patients who cannot or refuse to obtain nutrition by swallowing.

Artificial heart valve is a device which is implanted in the heart of the patients who suffer from valvular diseases.

Artificial pacemaker is a medical device designed to regulate the beating of the heart.

Sources: http://www.chemistryandyou.org/base_eng.htm

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Student Activity Sheet 2.7

CHEMISTRY-YOU CAN'T LIVE WITHOUT IT!

In The Car

As a person drives home, he's surrounded by

about a million peso worth of products of

chemistry. Thanks to their strength and

versatility, plastics offer greater freedom to

vehicle designers while helping to make seat

belts stronger, dashboards, and door panels

more shock-absorbent and seats lighter and

thinner. If he crashes, his life could be saved by

a chemical reaction that releases hot nitrogen

gas onto his car airbag in a matter of

milliseconds.

Substituting lightweight plastic parts for

traditional components in today's cars has

reduced industrialized countries consumption by

about 12 million tonnes a year which also saves

30 million tonnes a year in carbon dioxide emissions. The fact that today's vehicles

last longer also conserves natural resources. Thanks to the innovations such as

sealants and wear-resistant coatings the average life of a modern vehicle is now 17

years compared to 11 ½ years in the 1970's.

Dashboard is a reduced form of control panel located under the windscreen of an automobile. It contains indicators and dials such as the tachometer, speedometer and fuel gauge.

Sealant a substance such as sealing wax, used to seal a surface to prevent passage of a liquid or gas.

Industrialized countries more economically developed countries.

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Student Activity Sheet 2.8

CHEMISTRY-YOU CAN'T LIVE WITHOUT IT!

Music At Home

There's chemistry in most musical

instruments. Guitars, for instance, now use

nylon strings instead of animal gut. White

piano keys are no longer made of ivory

from elephants tusks but are molded from

a hard synthetic polymer, especially

formulated to look like ivory. In many

cases, the piano itself is finished in high-

gloss polyester instead of wood. All of

which saves a lot of elephants and a lot of

trees.

Chemistry also enables us to listen to

music at home. CDs have a polycarbonate

base and the hi-fi uses silicon chips.

Extracted from ordinary sand, silicon is a

natural conductor of electricity - but it

takes chemistry to turn the raw material

into the semiconductors that help to power our computers, appliances and

entertainment systems.

Gut part of the alimentary canal especially the intestine or stomach.

Tusks an elongated greatly enlarged tooth (as of an elephant or walrus) that projects when the mouth is closed and serves especially for digging food or as weapon.

Polycarbonate any of various tough transparent thermoplastics characterized by high impact strength and high softening temperature.

Silicon a tetravalent nonmetallic element that occurs combined as the most abundant element next to oxygen in the Earth's crust and is used especially for steelmaking, in other alloys, and in semiconductors.

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Student Activity Sheet 2.9

CHEMISTRY-YOU CAN'T LIVE WITHOUT IT!

In The Classroom

An everyday fountain pen may look like a simple

object, but it takes chemistry to make it function.

It has to be attractive and strong, but comfortable

to hold. The ink too, depend on chemistry.

Without ink there would be no books, newspapers,

magazines, banknotes or credit cards. Ink

brightens our world in wall coverings, posters and

art prints and make attractive packaging labels

and advertisements that are so much part of our

lives.

And where there is ink there has to be paper -

another product of chemistry. Producing sheets of

bonded cellulose fiber (paper) requires a range of

chemicals - from the sodium silicate and fumaric

acid that gives brightness and water resistance, to

the calcium hypochlorite and sodium chlorate that provide its whiteness and the

titanium that makes it opaque.

Cellulose a polysaccharide of glucose units that constitutes the chief part of the cell wall, occurs naturally in such fibrous products as cotton and “kapok”, and is the raw material of manufactured goods (as paper, rayon, and cellophane).

Sodium Silicate also known as water glass or liquid glass, available in liquid and solid form, is a compound used in cements, refractories, textile and lumber processing.

Fumaric acid is an acid used in the manufacture of polyester resins and polyhydric alcohols, as a mordant for dyes or as a flavoring. It is a common component of food additives and dietary supplements, and is sometimes used as a substitute for tartaric acid in beverages or baking powder.

an organic acid, C4H4O4, found in various plants and produced synthetically and used mainly in resins, paints, varnishes, and ink.

Calcium hypochlorite is a chemical which is widely used for water treatment and as a bleaching agent (bleaching powder). This chemical is considered to be relatively stable and has greater available chlorine than sodium hypochlorite.

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Titanium is a chemical element in the periodic table which is a light, strong, lustrous, corrosion-resistant (including resistance to sea water and chlorine)

transition metal with a white-silvery color.

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Student Activity Sheet 2.10

CHEMISTRY-YOU CAN'T LIVE WITHOUT IT!

Contributions of Chemistry to Other Sciences

Source: Soriano, E., Santisteban, C., & Elauria, E. (2002). Chemistry for the New Millenium. Manila: Adriana Publishing Co., Inc.

Medicine

Pharmacy

Nursing

Physics

Psychology

Geology

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Student Activity Sheet 2.10

CHEMISTRY-YOU CAN'T LIVE WITHOUT IT!

Contributions of Chemistry to Other Sciences

Reading Material

There are everyday experiences we observe and encounter that can be explained

by chemistry. Chemistry also contributes to the understanding of other sciences.

Take the case of biological sciences which deal with the study of living things. The

growth of plants and animals can be explained in terms of chemical reactions going

on in each organism. Chemistry explains the symbiosis between the animals and

plants illustrated by the oxygen-carbon dioxide cycle.

Physics is a science that deals with motion, force and energy. Chemistry

contributes also to the study of physics. Motion and force of an object depend on

the amount of matter; that is chemistry – related. Energy is transferred through

different media of matter and the particles of matter account for the speed of

energy transmission. Another thing is that, at times, energy is emitted as a result

of chemical change.

Knowledge of chemistry helps a geologist determine the origin and composition of

the earth and its life as recorded in rock history.

In nursing and medicine, new drugs for healing were developed. These include sulfa

drugs, anesthetics, steroids, antibiotics and synthetic vitamins. These are as

important as the development of new surgical procedures in medicine. Chemists

are working with medical doctors in searching for cures for dreaded diseases like

cancer and AIDS (Acquired Immune Deficiency Syndrome).

In nutrition, the lack of adequate food and nourishment is serious especially in

Third World countries such as Africa. Millions of people starve to death due to this

serious problem. It is the scientists', especially the chemists' concern to focus

efforts in yielding more food to feed the world's growing population.

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Student Activity Sheet 3

Map Me Out!

Procedure:

1. Recall the different situations shown by the pictures in the previous activity.

2. Write down the different products of chemistry. Identify and write where

these products are being used.

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Student Activity Sheet 4

CHEMISTRY-TOMORROW AND BEYOND!

Procedure:

1. Below is a completed future wheel. Explain the connectedness of the

concepts written in each of the figures.

2. Using this wheel as a guide, predict some possible consequences (

more

chemical products in the year 2007 and beyond

).

3. Write the possible consequences in some smaller figures (e.g. ovals, circles,

rectangles). Arrange them around the event given. These can be called the

first level consequences

.

4. If there are other consequences that may arise from any of those you

enumerated, connect them to the specific first level consequences by

drawing an arrow pointing to the second level consequences (please refer to

the completed future wheel) .

Sample completed future wheel

Electrical devices

will be used to do

all the household chores

at home.

Housewives and househusbands will be relieved of such works

There will be an increase

in the use of energy

People will have more time for leisure. Shortage of

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STUDENT ACTIVITY SHEET 4.1

Map Me Out!

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Teacher Resource Sheet 1

Checklist for Group Work

Criteria Poor

2

Satisfactory

5

Very Satisfactory

7

Excellent

10

All members participated in the group activity.

Members listened to one another.

Peer teaching was exhibited.

Everybody in the group did their assigned task.

Everybody in the group showed cooperation.

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Teacher Resource Sheet 2

Checklist for Oral Report

Criteria Never

3

Seldom 5

Sometimes 8

Always 10

1. Gave an interesting introduction.

2. Used complete sentences and appropriate vocabulary accurately.

3. Spoke clearly, correctly, distinctly and confidently.

4. Presented clear

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Teacher Resource Sheet 3

Rubric for Group Performance

Indicator Points

5 3 1

Relevance of the performance to the lesson

The performance is very

relevant to the lesson. The performance is slightly relevant to the lesson.

The performance is not relevant to the lesson.

Cooperation of the

members All members work cooperatively Some members of the group do not cooperate. Most of the members of the group do not cooperate.

Performance for dancing: • synchronization • gracefulness

For dancing:

• movement of all members is very synchronized and they danced very gracefully.

For dancing:

• movement of all members is slightly synchronized and they danced with moderate gracefulness.

For dancing:

• movement is not synchronized and they dance with no

gracefulness.

Performance for singing, poem and story:

• voice quality • synchronization

For singing, poem and story:

• voice is very audible and demonstrated a very accurate pitch and rhythm.

For singing, poem and story:

• voice is moderately audible and demonstrated a slightly accurate pitch and rhythm.

For singing, poem and story:

• voice is less audible and demonstrated no accuracy of pitch and rhythm.

Performance for poster: • attractiveness

For poster: • poster is

exceptionally attractive in terms of design, layout, and neatness.

For poster: • poster is

attractive in terms of design. Layout and neatness.

For poster: • poster is

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Stage

1.

Activating Prior Learning

2.

Setting the

Context

3.

Learning

Activity Sequence

4.

Check for

Understanding

5.

Practice and

Application

6.

Closure

Strategies

Activities from the Learning Guide

Extra activities you may wish to include

Materials and planning needed

Estimated time for this Stage

References

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Inter- estingly, cucumber plants exposed to volatiles released from 10 plates of GB03 were resistant to the pathogen, with an average disease severity score of 2.7 (on a scale

In two spots where the predominant protein was a tra- ditional alpha or a gamma gliadin in the total protein frac- tion, the predominant protein in the UPP peak 1 fraction was

Esti- mating the burden of foreign DNA ( i.e. , plasmids) in both MG1655 and MDS42 allows us to determine how a reduction in genome size influences the carrying cap- acity for

Conclusions: Oxidation caused carbonylation, quenching, and destruction of aromatic amino acids and aggregation of VP6 in its assembled and unassembled forms.. Such

first that addresses changes in the protein profile of 4 months old mouse hearts compared to juvenile 1 month old hearts in A.BY/SnJ mice using complemen- tary techniques of 2-D

Figure 4 Change in total omega 3 in red and white blood cells. The change in the sum of % compositions of omega 3 fatty acids in red or in white blood cells following consumption of