The electromagnetic spectrum is the range of all types of ELECTROMAGNETIC radiation. Radiation is energy that travels and spreads out as it does like the visible light that comes from a lamp at your crib and the radio waves that come from a radio station that plays your favorite jams are 2 types of electromagnetic radiation. The other types of EM radiation that make up the electromagnetic spectrum are microwaves, infrared light, ultraviolet light, X-rays and gamma-rays.
- Radio: Your radio captures radio waves emitted by radio stations, bringing your favorite tunes. Radio waves are also emitted by stars & gases in space.
- Microwaves: Heat up particles of water & Microwave radiation will cook your popcorn in just a few minutes, but is also used by astronomers to learn about the structure of nearby galaxies.
- Infrared: Night vision goggles pick up the infrared light emitted by our skin and objects with heat. In space, infrared light helps us map the dust between stars.
- Visible: Our eyes detect visible light. Fireflies, light bulbs, and stars all emit visible light.
- Ultraviolet: Ultraviolet radiation is emitted by the Sun & are the reason skin tans and burns. "Hot" objects in space emit UV radiation as well.
- X-ray: A dentist uses X-rays to image your teeth, and airport security uses them to see through your bag. Hot gases in the Universe also emit X-rays.
- Gamma ray: Doctors use gamma-ray imaging to see inside your body. The biggest gamma-ray generator of all is the Universe.