Activity: 5W–1H Chapter Lens (Light and Shadow)
Light helps us to see objects around us.
Light is a form of energy that makes objects visible.
Light comes from natural and artificial sources like the Sun and bulbs.
Light is needed whenever we want to see objects.
Because objects are visible only when light falls on them.
Light travels in a straight line and forms shadows when blocked.
Three Important Takeaways
Light travels in a straight line.
A shadow is formed when an opaque object blocks light.
Transparent objects do not form clear shadows.
Key Exam Facts
Luminous objects emit their own light.
Opaque objects do not allow light to pass through them.
Shadow size depends on the position of the light source.