What is light??. Light is a form of energy that is created from a different form of energy There are two types Incandescence - Light from heat or high temperature Luminescence –Light from electron giving off energy https://www.youtube.com/watch?v= YnMP1Uj2nz0
Light is a form of energy that is created from a different form of energy
How often do the light bulbs need changing?
What are some factors that you think about when buying light bulbs?