Meaning and Properties of Air Basic Science and Technology 2nd Term Primary 6 Week 5

Subject : 

Basic Science and Technology

Term :

Second Term

Week:

Week 5

Class :

Primary 6 /  Basic 6

 

Previous lesson : 

The pupils have previous knowledge of

Water Projects

in Basic Science in their previous lesson

Topic :

Air

– Meaning of Air

– Properties of Air

– Air Pressure (Uses)

Behavioural objectives :

At the end of the lesson, the pupils should be able to

  • define air
  • say instances where air is found
  • say properties of air
  • define air pressure
  • explain uses of air pressure

 

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
  • Workbook

            

CONTENT

Air is the mixture of  gases . It  is made up of gases of like argon, oxygen , nitrogen , carbon dioxide and some other trace gases hydrogen, helium , Methane, Sulfur dioxide , Ammonia etc .

Air also contains some element of water , dust particles , and some impurities .

 

Air Pressure 

Air Pressure is the strength or  power of the air . It is the ability of the air to push things in all direction . The presence of air pressure is easily noticed when air pushes pieces of paper in all direction .

Air pressure is also easily noticed when trees are forced to take a bow during heavy wind rampage or storm . Air pressure may be so violent that roofs of houses are blown off

 

 

Evident of Air Pressure in our daily lives 

  • Movement of pieces of paper  that is blown by air
  • Air pressure makes us to move
  • Floating of balloons is made possible because of air pressure
  • Air Pressure makes Aeroplane to move in the sky
  • When a glass cup is filled with water and it is covered with a piece of cardboard . When the cup is turned upside down , the air pressure keep the piece of cardboard intact without falling off

 

Uses of Air Pressure 

  1. Air pressure enables vehicles to move as more advanced and tubeless tyres are made to reduce friction
  2. Air pressure is seen when pupils makes air bubbles with soap and the bubbles float in the air
  3. Air pressure makes us to move without skidding off balance because the amount of the atmospheric air pressure around us is equivalent to the atmospheric pressure around us
  4. Air aids the pollination of pollen grains as seeds are transferred from one plant to another . Air is one of the agents of pollination
  5. Air pressure also support air transportation as this enables aeroplane to fly in the air without crash landing .
  6. Air pressure is also useful when generating electricity when we construct windmills that is powered by air pressure to generate electricity .Air pressure makes it possible it possible to spray insecticides or chemicals .

 

 

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

  • What is a windmill
  • What is air pressure
  • Write out four properties of air
  • Write out four uses of air pressure
  • What is air

 

 

Assignment

Prepare for the next lesson by reading about mineral resources in Nigeria

 

 

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