Need For Monitoring And Control Of Chemical

MAIN AIM: to help the students understand the meaning of chemicals.

SUBSIDIARY AIMS: By the end of the lesson, the Students should be able to:

1. Explain the meaning of chemicals

2. Distinguish between chemical suitable for use and those not suitable for use

3. Explain the need for monitoring and controlling chemical suitable for use and those not suitable for use

4. List chemicals suitable for use

5. List chemicals not suitable for use

PERSONAL AIM: to assist the students understand the meaning of suitable and unsuitable use of chemicals.

ASSUMPTION: the students are familiar with products produced with chemicals.

ANTICIPATED PROBLEMS: the student may not be conversant with the meaning suitable and unsuitable use of chemicals.

POSSIBLE SOLUTION: Teacher explains the meaning of chemicals.

TEACHING AIDS:  Junior Secondary Business Studies (WABP).

INTERACTION PATTERN: individual

STEP1: Meaning of monitoring

Monitoring means keeping a person in check or on guard to ensure that he or she is complying with rules and regulations, monitoring is carried out to ensure control and in the production and use of chemicals some of which are hazardous or toxic substances

Meaning of chemical

It is defined as any substance which is capable of breaking down, or combining with its kind or other substance under a suitable environment to become a new substance having a completely different character behavior quality or use. It can be solid liquid or gas examples of solid chemical are ice and gold examples of a liquid chemical are water and petrol examples of a gaseous chemical are air and cooking gas.

STEP2: CHEMICAL SUITABLE FOR USE AND THOSE NOT SUITABLE FOR USE

 Some chemicals are suitable for use , while some are not , is important we know  those suitable and those  not suitable for use  it requires a lot of experience  and it can be tricky most times , in fact it takes a lot of expert work: – the national agency for food and drug administration control (NAFDAC) has classified chemical according to their suitability or unsuitability. The following can help to distinguish between the two

A. Characteristics of chemical suitable for use (non-hazardous chemicals)

1. Safe

2. Harmless

3. Can be inhaled and ingested

4. Non-toxic

5. Non-irritant

6. Non-corrosive

7. Non-radioactive

8. Non-flammable

B. Characteristics of chemical not suitable for use (hazardous chemicals)

1. Dangerous

2. Harmful traits particularly when ingested or by mere contact

3. Destructive to life and the environment

4. Toxic

5. Irritant

6. Corrosive

7. Radioactive

8. Flammable

Period 3

Need for monitoring and controlling foods, drugs and chemical

NAFDAC regulates monitors and controls the importation, exportation, manufacture, advertisement, distribution, sales and uses of foods, drugs and chemicals.

Need for monitoring and control of chemical

1. Ensure compliance with standard specifications designated and approved by the council

2. Enable appropriate investigation into the production premises and raw materials

3. Establish relevant quality assurance system

4. Monitor the utilization of controlled chemical substance

5. Ensure non-diversion of chemicals for illicit usage

EVALUATION:

1. What are chemicals?

2. Mention three (3) forms of chemical

3. Distinguish between chemicals suitable for use and those not suitable for use

4. List two (2) effects of lack of monitoring of foods, drugs and chemical

5. State two ways of controlling chemicals

SUMMARY:

In this lesson you have learnt:

1. Chemical is any substance which is capable of breaking or combining with other substances under a suitable environment to become a new substance

2. Chemical suitable for use are safe, harmless, non-toxic, non-irritant and non-radioactive and are therefore non-hazardous

3. Chemical not suitable for use are dangerous, harmful, toxic, irritant, corrosive, radioactive, flammable and destructive to life

4. There are many reasons for monitoring and controlling chemical for example monitoring the utilization of controlled chemicals

ASSIGNMENT:

1. Define chemicals?

2. Mention three (3) forms of chemical

3. Give two examples suitable for use and not suitable for use chemicals

4. List two (2) effects of lack of monitoring of foods, drugs and chemical

5. State two ways of controlling chemicals

Teacher Evaluation: ­­­­_______________________

Conclusion