Second Term Lesson Note for Week Seven
Class : Primary 3
Subject : Basic Science and Technology
Topic : Packaged water
Duration : 40 minutes
Period : Single Period
Reference Book :
- Basic Science and Technology for Primary Schools ,Book 3.
- Lagos State Unified Schemes of Work for Primary Schools (Primary 1 – 3)
- Online Resources
Instructional Material : Chart showing types of packaged water.
Learning Objectives : By the end of the lesson learners will be able to :
i. Explain reasons for packaged water
ii. Identify features of safe packaged water
Previous Knowledge : Learners are familiar with water purification and how to package water.
Content :
Packaged water are the water purified, packed or wrapped in a container such as sachet, plastic bottles, for drinking and safe use.
Reasons for Packaging water
1. To make clean drinking water available in all area.
2. To prevent contamination of clean drinking water.
3. To make clean drinking water affordable.
4. For easy handling and serving of guests.
5. For easy identification of expiry date.
Features of packaged Water.
1. Each packaged water has a trade mark. That is a company name and logo. For example Eva, Aquadana, Cascade, C-way, etc.
2. Every packaged water has a NAFDAC registration number which certify it for drinking.
3. Any water packaged and does not have NAFDAC registration number is not safe for drinking.
4. They have date of production and expiration date on them.
5. They are usually sealed up. If it is not sealed or broken, do not drink the water.
Water can be packaged in different ways:
i. Water can be packaged in a sachet ( transparent polythene) called pure water.
ii. Packaged water can also be packed in a bottle container of different sizes 75cl small or 1.5L big.
iii. Packaged water filled in a big container for water dispenser. For example C-way water.
iv. Water can also be packaged in a big reservoir of 1000L, 5000L, 10,000L capacity depending on level of usage of water.
Presentation Steps :
Step 1 : Revises the previous lesson with the learners by asking questions orally.
Step 2 : Introduces the new topic on packaged water and different types
Step 3 : Explains the features of packaged water and it safety .
Evaluation :
1. ______________ is the filling and packing of treated water in a container for the safety of drinking and use. (a) Packaged water (b) Rain water (c) Well water.
2. Mention two materials used in packaging water.
i. _____________________________
ii. _____________________________
3. List three examples of packaged water you know.
i. ____________________________
ii. ___________________________
iii. __________________________
Conclusion : At the end of the lesson learners were able to answer the questions correctly.
Assignment :
State two features of packaged water.
i. __________________________________
ii. _________________________________