Unusual breath odors are common in kids. Typically there isnât anything to worry about, but there are some breath odors that indicate an underlying problem. In children smelly breath that persists throughout the day is most often the result of mouth-breathing, which dries out the mouth and allows the bacteria to grow.
Light is composed of particles called photons, and matter is composed of particles called electrons, protons, neutrons. It's only when the mass of a particle gets small enough that its wavelike properties show up. To help understand all this let's look at how light behaves as a wave and as a particle.
This article explains light energy for kids in an easy-to-understand manner. Read on to find out more about light, its sources, colors, transparency of materials, shadows, and so on. Light is a form of energy that our eyes can see. It is made up of billions of tiny particles known as photons. It is not matter because it has no mass and does not occupy space. It also travels in a straight line. It travels at a very fast speed -- 299,792,458 metres per seconds to be exact.