Page 15 - Science B.B Prim.4 concept 2&3 t.1 e-book _2024-2025. - Copy (1)_Neat

Unit1 Conc3: Light and Sight

Light: A visible form of energy travels in straight lines in the form

of waves.

Light source: Something that emits its own light.

Sun

Stars Fire
Lamp
Light
sources

Tourch

First Term Candle The moon and mirror

37 aren’t considered as

light sources as they
don’t emit light, but
they reflect the light

falling on them