Chemistry Form One Notes – Introduction to Chemistry
Full text version of Chemistry Form One Notes on Introduction to Chemistry, transcribed from the supplied source document. Source images are intentionally omitted; all recognized text from the topic pages is included below.
Full text: This page contains the complete recognized text for source pages 2-8. For the original PDF layout and illustrations, use the WhatsApp button below.
INTRODUCTION TO CHEMISTRY
‘The Concept of Chemistry
Explain the concept of Chemistry
Chemistry is a branch of science that deals with the study of nature, properties and composition
of matter, Matter can be defined as anything that has weight or mass and ean occupy space.
Therefore, in chemistry we study materials that make up the earth and universe. These range
from living 10 non-living materials. We apply the knowledge of chemistry to study the
composition, behaviour and nature of materials around us, Ths stady enables us to make the best
use of these materials to improve our welfare.
Materials Objects Made by Application of Chemistry
Menton materals objects made by application of chemisry
Chemistry is such an important subject that itis applied in other fields such as agriculture,
industries, ete. All these industries are responsible forthe production of materials that we need to
support and hence improve our lives. Materials made by the application of chemistry knowledge
include soap, chalk, shoes, clothes, petroleum products, alcoholic and non-alcoholic beverages,
cosmetics, drugs, and many others. Can you mention some of the materials made by the
application of chemistry knowledge?
This, therefore, means that chemistry is applied in factories, homes, hospitals, pharmacies,
research centers, higher learning institutions, et.
“Many products made by the application of chemistry in industry are all around us. Some ofthese
‘materials are summatized in the table
Field where applied Examples of products
2
Medicine Drugs vaccines, urtonl supplements
Arochemiels( fei, prices, brie, scaedes), animal dugs and vaccines,
Agscuture imal fed and supplements
Food and beverage industry Soft and leboidriks, baked fod, camel fnd, spe, cooking oi st
indisey Comets, detergents top, shoe poli, ects, nisi, dinfctats
Transport Fuel bic reas, reo rs
Texte intstry Clots, dyes, Beaches, ax, treads
Later indstry ‘hoc, ands, bls, ther antles
Some products made by application of chemistry
‘The importance of chemistry in life
‘Areas Where Chemistry is Applied
Mention areas where chemistry is applied
In everyday life, we need different substances to meet our basic human needs like food, shelter,
clothing, comfort and health, Applicaton of chemical knowledge enables the production of
diferent materials and products that we need to lve beter.
Examples ofthese material, as mentioned earl, are (paraffin), sugar, common sal, sft drinks,
aedical drugs (medicine), toothpaste and plastics. Others are spirits, wines, shoe polishes,
cement, baking soda, petrol, diesel and cosmeties (saps, body oils and lotion, body and hair
creams, te)
Al these materials, among others, are made by applying chemical processes, They are needed
for a better living. Can you mention more materials made through chemistry knowledge?
2
a
) bal
BAY Lae ene
St ag
i’d re
We also need to change different mineral ores through a number of processes into useful
substances suchas stee, aluminium, tn, et, Man has learned how to change harmful substances
—
– Bag *
‘5 ?
ee. EN
=) re
eee
Inydronide
processes more than we can tl. Look at the picture below.
toe TTT
© J
=) INS =
| Hf [ote
SiS =v i
s
Many items we we at school, home and industry are made by applying chemical procese. The
soap we we to wash our lathes and clean our bodies is made from animal ft and an lal
Many items re made from plastic, Many Kinds of plastics are made fom cree i. What ters
are made fom pss in your home? Sof drink bales are made fen glss. The major
component gat is snd, lt is made by mizing sand wid etal oie ina Smace ot high
terpeatre, Some clathing is made fom natural bers sch 8 ction or sik
(ther fics ike polyester and nylon are made fom chemicals found in cool and crude of
What are your clothes mae of
—
AS
rs lp
2B
: 4
Clothes made from couon fibres
Man bas sed meticies exacted ftom plants and animals since the beginning of time. For
example cinchona tree contains quinine, which basa biter taste. Quinine was andi til wed
fo rearocat of maleria. Pein is exrced ftom a fang ale pencilin, Nowadays, its
poesile to make chemicals tht have the sme effets as atarly occuring drug
This fooms the bass of he pharmaceutical drugs industry. What medicine extracted fom plants
and animals are used in your school or lel dispensary?
6
a
ger,
—
r
ee
,
The Importance of Chemistry in Daily Life
Siate the importance of Chemistry in daily Wfe
There area number of reasons for studying chemistry. Ifyou ask someone to tell you the reason
for studying chemistry, heshe will give reasons based on how the subject touches hinvher.
However, there are general and universal reasons a to why we should devote our valuable ime
and energy 10 the study of chemistry. In genera, we study chemistry because it helps as to
understand:
+ why and how materials behave as they do;
+ how a new materi, based on the known properies ofits allies or counterparts might
behave
+ how to make new materials which will be useful tous and
+ how to extract and use material rom the earth o improve our welfare
In economic and occupational terms, we can say that the knowledge of chemistry helps ws:
reagents, medicines rubber, cement, punts, tel, pasties, ete. What other materials do you thik
can be included in thelist?
Therefore we ean summarize that the study of chemistry i important for survival, development
and welfare of man as wel as sustainable production of cops and animals
2