Lesson Notes By Weeks and Term - Senior Secondary 1

Introduction to Chemistry

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Term: 1st Term

Week: 1

Class: Senior Secondary School 1

Age: 15 years

Duration: 40 minutes of 5 periods each

Date:       

Subject:      Chemistry

Topic:-       Introduction to Chemistry

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

  1. Define chemistry
  2. List and explain the branches of chemistry
  3. Discuss career prospects tied to chemistry
  4. State the applications of chemistry

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S ACTIVITY

STEP 1

INTRODUCTION

The teacher reviews the students’ knowledge about the word chemistry

Students pay attention

STEP 2

EXPLANATION

He defines chemistry. He lists and explains the branches of chemistry

 

Students pay attention and participates

STEP 3

DEMONSTRATION

He discusses the career prospects tied to chemistry and further states the applications of chemistry

Students pay attention and participate

STEP 4

NOTE TAKING

The teacher writes a summarized note on the board

The students copy the note in their books

 

NOTE

INTRODUCTION TO CHEMISTRY

Chemistry is the study of matter; its properties, composition, uses and changes it undergoes

 

BRANCHES OF CHEMISTRY

The study of modern chemistry has many branches, but it can generally be broken down into five main disciplines, or areas of study:

Physical chemistry Organic chemistry Inorganic chemistry Analytical Chemistry Biochemistry

 

  1. Physical Chemistry

Physical chemistry is the study of macroscopic properties, atomic properties, and phenomena in chemical systems. A physical chemist may study such things as the rates of chemical reactions, the energy transfers that occur in reactions, or the physical structure of materials at the molecular level.

 

  1. Organic Chemistry

Organic chemistry is the study of compounds containing carbon. Carbon is one of the most abundant

 

elements on Earth and is capable of forming a tremendously vast number of chemicals (over twenty million so far). Most of the chemicals found in all living organisms are based on carbon.

 

  1. Inorganic Chemistry

Inorganic chemistry is the study of chemicals that do not, in general, contain carbon. Inorganic chemicals are commonly found in rocks and minerals. One current important area of inorganic chemistry deals with the design and properties of materials involved in energy and information technology.

 

  1. Analytical Chemistry

Analytical chemistry is the study of the composition of matter. It focuses on separating, identifying, and quantifying chemicals in samples of matter.

 

  1. Biochemistry

Biochemistry is the study of chemical processes that occur in living things. Research may cover basic cellular processes up to understanding disease states so better treatments can be developed.

 

Career Prospect Tied To Chemistry

  1. Analytical Chemist.
  2. Chemical Engineer.
  3. Chemistry Teacher.
  4. Forensic Scientist.
  5. Geochemist
  6. Hazardous Waste Chemist.
  7. Materials Scientist.
  8. Etc.

 

Applications and Adverse Effects of Chemistry

Applications

  1. Food: Chemistry is used to increase food production by the use of fertilizer and insecticides, preservation and addition of essential nutrients to improve the quality of food
  2. Clothing: Textile fibers are produced by chemical research
  3. Housing: Cement, concretes, bricks, tiles and roofing sheets are produced by chemical processes
  4. Medicine: Chemical research is employed in the production of drugs and medicines
  5. Transportation: Fuels and structural materials like alloys which are light, strong, and heat resistant are produced by chemical processes

EVALUATION:    1. Define chemistry

  1. List and explain the branches of chemistry
  2. List five career prospects ties to chemistry
  3. What are three practical applications of chemistry?

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively