I would explain it like this 🌈
A rainbow is a huge, colorful arc that appears in the sky when sunlight shines through tiny drops of rain. Imagine the sky suddenly painting a soft, curved bridge made of colors.
Those colors usually appear in a beautiful order: red, orange, yellow, green, blue, indigo, and violet. Each color gently blends into the next, creating a glowing band of light that stretches across the sky.
If you have never seen one, picture sunlight passing through millions of tiny glass beads floating in the air. Each bead bends the light and spreads it into different colors, and together they form a giant curved ribbon of color above the horizon.
Rainbows often appear after rain when the sun comes out, and they usually last only a short time, which makes them feel a little magical—like nature briefly showing its artwork before it fades away. ✨

Very nice, good job❣
Rainbows are very interesting and pretty❣
Thanks for sharing❣☘☘☘☘