Water and chemical pollution
Subject :
PHYSICAL AND HEALTH EDUCATION ( PHE )
Term :
THIRD TERM LESSON RESOURCES
Week:
WEEK 10
Class :
PRY 3 PHE THIRD TERM E-NOTE
Previous lesson :
The pupils have previous knowledge of
that was taught in the previous lesson
Topic :
Water and chemical pollution
Behavioural objectives :
At the end of the lesson, the pupils should be able to
1. Say the meaning of water and chemical pollution
2. List the causes of water and chemical pollution
3. Identify the ways of preventing water and chemical pollution
Resources and materials:
Instructional Materials :
- Wall charts
- Pictures
- Related Online Video
- Flash Cards
Methods of Teaching :
- Class Discussion
- Group Discussion
- Asking Questions
- Explanation
- Role Modelling
- Role Delegation
Reference Materials :
- Scheme of Work
- Online Information
- Textbooks
- Workbooks
- 9 Year Basic Education Curriculum
- Workbooks
Content :
WATER POLLUTION
Water pollution is when waste, chemicals, or other particles cause a body of water (i.e. rivers, oceans, lakes) to become harmful to the fish and animals that need the water to survive. Water pollution can disrupt and negatively impact nature’s water cycle as well.
Causes of Water Pollution
Water pollution has various causes, The major sources of water pollution are caused by humans. We pollute water bodies through various activities like agricultural activities, chemicals from industries, etc. This essay on water pollution will cover major causes that are as-
1. Water pollution through industrial waste
2. Water pollution through the disposal of waste
3.Water pollution through Agricultural activities
4. Water pollution through acid rain
5. Water pollution through Oil spills
Ways of preventing water pollution
1. Save water – Fresh and clean water is a precious resource. Don’t waste it! Take shorter showers, ask your parents not to water the lawn, make sure the toilet isn’t running, and don’t leave the faucet running.
2. Don’t use weed killer – Ask your parents if you can pull the weeds in the yard so they don’t need to use weed killer (an herbicide).
3. Scrape your plates clean into the trash and don’t put grease into the kitchen drain.
4. Trash – Always pick up your trash, especially when at the beach, lake, or river.
5.Sewage treatment
6. Minimize the use of pesticides and fertilizer
CHEMICAL POLLUTION
Chemical pollution is defined as the presence or increase in our environment of chemical pollutants that are not naturally present there or are found in amounts higher than their natural background values
WAYS OF PREVENTING CHEMICAL POLLUTION
1. VOC’s are harmful chemicals found in several home products, so try to reduce the use of VOC’s.
2. Use chemical-free cleaning products.
3. use pesticides and fertilizers that contain fewer chemicals.
4. Always Recycle Batteries.
5. Recycle, reuse or donate liquids from automobiles.
6. Limit the use of your cars and motor vehicles.
Presentation
The topic is presented step by step
Step 1:
The class teacher revises the previous topics
Step 2.
He introduces the new topic
Step 3:
The class teacher allows the pupils to give their own examples and he corrects them when the needs arise
Conclusion
The class teacher wraps up or conclude the lesson by giving out short note to summarize the topic that he or she has just taught.
The class teacher also goes round to make sure that the notes are well copied or well written by the pupils.
He or she does the necessary corrections when and where the needs arise.
Evaluation
1. Say the meaning of water and chemical pollution
2. List the causes of water and chemical pollution
3. Identify the ways of preventing water and chemical pollution
Assignment
Prepare for the next lesson by reading about
Water and chemical pollution