What is Infrared Radiation & Electromagnetic Spectrum?

Infrared radiation is like the invisible heat from your warm blanket on a cold night.

Imagine you have a flashlight, that’s visible light, the kind we see every day. But there's also infrared radiation, which is like the heat coming out of your toaster when it's working hard to make your toast. You can't see it, but you can feel it, just like how you know it's warm under your feet when you walk on a sunny floor.

Think of the electromagnetic spectrum as a giant rainbow, not just the colors we see, but all kinds of invisible waves too. It includes radio waves (like the ones that bring music to your radio), visible light (the colors we see), and infrared radiation (the heat from the sun or your hot soup). Each part is like a different type of wave, some are short, some are long, but they all travel through space just like ripples in water.

So when you feel the warmth of the sun on your skin, it’s not just light, it's infrared radiation coming to visit you from far away!