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Results
The light beam emanates from the torch and passes through the
perforated paper. It then travels through water and glass and is
blocked by the opaque paper. Any disruption in the alignment
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blocks the light, showing that light travels in straight line
Conclusion
This demonstrates that, light travels in a straight line
Properties of light
The properties of light include traveling in a straight line, forming
shadows, bending and reflection.
Activity 4
Investigating transfers of light in the air
1. Observe the sky in the east in the morning as the sun
rises. What do you see?
2. Record your observations.
When you wake up early in the morning as the sun begins
to rise, you will see light rays. These rays appear to travel in
straight lines. Light allows us to see various objects as shown
in Figure 8.
Figure 8: Light helps us see various objects
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