6 ways of making light

Question 1

Incandescence

Answer 1

heat, like in a light bulb

Question 2

Fluorescence

Answer 2

UV light causing emission of visible light)

Question 3

Phosphorescence

Answer 3

afterglow, like glow-in-the-dark materials

Question 4

Chemiluminescence

Answer 4

chemical reactions producing light

Question 5

Bioluminescence

Answer 5

living organisms producing light

Question 6

Electroluminescence

Answer 6

electric current passing through a material to produce light