Shadows, eclipses and phases of the Moon · छाया, ग्रहण और चंद्रमा की कलाएँ
A free Physics lesson for Class 5 children.
Light travels in straight lines.
A shadow forms when an opaque object blocks light.
The Moon has no light of its own. It shines by reflecting sunlight.
As the Moon goes round the Earth, we see different parts of its lit half.
These changing shapes are the phases: new moon, crescent, half, gibbous and full moon.
In a solar eclipse, the Moon comes between the Sun and the Earth.
In a lunar eclipse, the Earth comes between the Sun and the Moon.
Never look straight at the Sun, even during an eclipse.