Light and Sound Energy

Light and Sound Energy


SUBJECT: Basic science and Technology Third Term Primary 3


CLASS: Primary 3


Term : Third Term


Week: Week 7 & 8


Topic  : Light and Sound Energy


Behavioural objectives :

By the end of the lesson, the learners will be able to

  • Explain the meaning of Light and Sound Energy
  • List examples of Light and Sound Energy

Previous lesson : 

The pupils have previous knowledge of


that was taught in the previous topic


Instructional Materials :

  • Touch light
  • Candle
  • Lantern
  • Sand
  • Wheelbarrow
  • Shovel
  • Stick
  • Plane
  • Mirror
  • Lenses concave
  • Empty tins with shinny surface
  • Pencils.





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





Light energy is a form of radiation that we use to see .. Light consists of photons, which are produced when an object’s atoms heat up. Light travels in waves and is the only form of energy visible to the human eye.



Electric bulb



Led(light emitting diode)



Tube light


Uses of light energy

It helps us to see things.

It helps plants to make food and grow.

It is used in power satellites and space stations.

It is used in many electronic appliances.

The energy of light from the sun can be harvested to solar panels and can be used for domestic use since it is eco-friendly and cost effective too.

Materials that can reflect light

Smooth and shinning surface like glass,water, or polished metals.


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Sound energy is produced when an object vibrates. The sound vibrations cause waves of pressure that travel through a medium, such as air, water, wood or metal. Sound energy is a form of mechanical energy. We can hear sound . Sound may be unpleasant noise or melodious music

Uses of Sound Technology

Cellular Telephone ringtones

Motion Picture soundtracks

Telephone rings

C.D.’s Televisions


Hearing Aids

Video Tape Recorders

Video Cameras





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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




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.





  1. define and explain the meaning of sound energy.
  2. explains two sources of light energy.
  3. list three materials that can reflect lights.
  4. explain the meaning of sound energy.



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Similar Links 


Basic science and Technology Third Term Primary 3



Weekly Topics For Third term Basic 3 basic Science and Technology




Week 1 : Living Things . Plants and animals 



Week 2 : Characteristics of living things



Week 3 : Forms of Technology 



Week 4 : Modern Technology



Week 5 : Forms of Energy 




Week 6 : Energy