Sunlight is light emitted by the Sun and is also called daylight or visible light.
- Sunlight is only one form of electromagnetic radiation emitted by the Sun.
- Sunlight is only a very small part of the electromagnetic spectrum.
- Sunlight is the form of electromagnetic radiation that our eyes are sensitive to.
- Other types of electromagnetic radiation that we are sensitive to, but cannot see, are infrared radiation that we feel as heat and ultraviolet radiation that causes sunburn.