How Do You See Things ?

Key Notes:

We Need Light to See Things

  • We can see objects only when light shines on them and enters our eyes.

Sources of Light

  • The Sun, bulbs, candles, and torches are sources of light.
  • Some objects give their own light (like the Sun), while others reflect light.

How Light Helps Us See

  • Light bounces off (reflects) from objects and enters our eyes.
  • This is how we are able to see those objects.

Transparent, Translucent, and Opaque Objects

  • Transparent: Light passes through (e.g., glass).
  • Translucent: Light passes partially (e.g., frosted glass).
  • Opaque: Light does not pass through (e.g., wood, wall).

Shadows

  • Shadows are formed when an object blocks light.
  • Shadows are always opposite to the direction of the light.

Eyes Help Us See

  • Our eyes are special sense organs that help us see things around us.
  • We must take care of our eyes and protect them from bright light or dust.

Use of Artificial Light

  • At night or in dark places, we use electric lights, lamps, or torches to help us see.

🧠 Fun Fact:

  • We can’t see in the dark because there is no light to reflect off objects into our eyes!

Let’s practice!