short and creative notes chapter 8 chemistry form 4

MRSM KEPALA BATAS

PROJECT TITLE: SHORT AND CREATIVE
NOTES

TOPIC : MANUFACTURED SUBTANCES
IN INDUSTRY

STUDENTS NAME :
1. SITI AFNAN BINTI MOHD ZAKUAN
2. NURUL FAUZANA BINTI MOHD EFFENDY
3. NUR AIN SAFIYYAH BINTI ZULNASRI
4. FATIN NASUHA BINTI NAZRI

CLASS: 401
SUBJECT: CHEMISTRY
TEACHER’S NAME : PUAN NORAZAH

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CONTENT PAGE
3
Acknowledgement 4
Introduction 4
Objective 5
SHORT AND CREATIVE NOTES 5
8.1 Alloy and Its Importance 7
8.2 Composition of Glass and Its Uses 10
8.3 Composition of Ceramics and Its Uses 13
8.4 Composite Materials and Its
Importance 17
Discussions 21
Estimated Budget 21
Reference Source

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ACKNOWLEDGEMENT

We would like to express our deepest appreciation to all those who provided us
the possibility to complete this project. A special gratitude we give to our
chemistry teacher, Puan Norazah, whose contribution in stimulating suggestions
and encouragement, helped us to coordinate our project especially in
completing this project.
Furthermore we would also like to acknowledge with much appreciation to our
parents, who gave the permission to use all required equipment and the
necessary material to complete the task “short and creative notes”. A special
thanks goes to our classmates, who help us by giving suggestions about the task
“short and creative notes”. Last but not least, thank you to all of our teammates
who worked together on this project until it was successfully completed.

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INTRODUCTION

All the objects that exists around us are made up of chemical substances. These objects exist
as an element, compound or mixture. All these objects contribute benefit to humankind. As
time goes on, human has done many researches to ensure all these chemical substances will
be enough for the use of themselves.
Chapter 8 of Form 4 syllabus introduces the students with manufactured substances in
industry. This is important for the students to appreciate the knowledge of Chemistry that is
still new for themselves. We hope, by learning this chapter, we will be more interested in
learning chemistry because it is very important in our life.

OBJECTIVES

Pupils are able to:
1. Describe briefly alloy with examples
2. Compare the properties of an alloy with its pure metal through experiment
3. Justify the usage of alloys based on their composition and properties
4. Describe briefly with examples the type of glass, their composition, properties and
uses
5. Describe briefly with examples of ceramics, their composition, properties and uses
6. Explain the uses of ceramics in daily life.
7. State the meaning and properties of composite materials
8. Describe with examples the uses of composite materials
9. Compare and contrasts the properties of a composite material with its constituent
materials

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DISCUSSIONS

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Test yourself 8.4
1.Concrete is an example of composite material that has been used since ancient times.
(a) What is the meaning of composite material?
~ combination of two or more non-homogeneous substances
(b) Is the concrete suitable to be used to build the pillars of buildings? Explain.
~ Not suitable. This is because concrete is resistant to compression but is brittle due to its
weak stretching strength
(c) Explain how concrete may be reinforced.
~ the stretching weakness of concrete can be strengthened by inserting steel rods in concrete.
The steel rods are not brittle because it can withstand stretching.
(d) State two uses of reinforced concrete
~ to build bridges and buildings

2. Fibre glass is made by immersing glass fibre in molten plastic.
(a) Name the matrix substances and strengthening substances used to make fibre glass.
~Matrix substance: plastic, strengthening substances, fibre glass
(b) Explain why fibre glass is suitable to be used to make water storage tanks.
~ This is because fibre glass has high strength-weight ratio, strong and durable (resistant
towards compression and stretching forces) and low building cost.

3. Optical fibre has replaced copper wire in the transmission of information and data.
(a) Name three structures that make up an optical fibre
~ Protective jacket, sheath layer and core
(b) How does optical fibre transmit information and data?
~ To transmit information and data in the form of light reflection
(c) Compare the usage of optical fibres and copper wires in high definition cable TV network
~ Transmission of high definition cable TV network needs high capacity, high speed, and
high band width. Fibre optics used] light that can send information faster than copper wire.
Fibre optics have wider band with compared to copper wire.

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4. Photochromic glass is a composite material which is always used to make car windows
(a) State the main component in photochromic glass
~ Glass, silver chloride and copper(I) chloride
(b) Which component in 4(a) is sensitive to UV light
~ Silver chloride
(c) State two other uses of photochromic glass
~ to make building windows and camera lenses.

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ESTIMATED BUDGET

INTERNET CONNECTION : RM 10
OVERHEAD : RM 10
TOTAL : RM 20

REFERENCE SOURCE

1. TEXTBOOK
CHEMISTRY TEXTBOOK FORM 4
LIM KUOK CHEN, DR. NUR JAHAN AHMAD,
DR. CHUA KAH HENG, WONG CHOY WAN,
LEE SZE YIEN
2019, MINISTRY OF EDUCATION MALAYSIA

2. INTERNET
- http://bit.ly/367eOnU

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