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JSS3: BASIC SCIENCE - 2ND TERM

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  1. Light Energy | Week 1
    2 Topics
  2. Reflection of Light | Week 2
    5 Topics
    |
    1 Quiz
  3. Sound Energy | Week 3
    4 Topics
  4. Sound Energy - Echoes, Hearing | Week 4
    2 Topics
    |
    1 Quiz
  5. Electrical Energy - Concept of Electrical Flow | Week 5
    2 Topics
  6. Arrangement of Resistors | Week 6
    3 Topics
  7. Electrical Meter Reading and Billing | Week 7
    2 Topics
    |
    1 Quiz
  8. Magnetism | Week 8
    2 Topics
  9. Laws of Magnetism | Week 9
    4 Topics
    |
    1 Quiz
  10. Radioactivity | Week 10
    5 Topics
    |
    1 Quiz



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Sunlight

Light is a visible form of energy that spreads outwards from a source. Light is nature’s way of transferring energy through space. 

There are various sources of light, for example, the sun and the stars are natural sources of light and also some living creatures like fireflies and glow worms. Sources of light are the candle, electric torch, electric lamp, electric bulb, etc

bulb

Properties of Light Energy:

1. It travels in a straight line.

2. It undergoes refraction.

3. It undergoes reflection.

4. It can be absorbed in clothing materials.

5. It has a speed of \( \scriptsize \: 3 \: \times \: 10^{8} \: m / s\)

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