Why is does the yellow fire provide light but the blue fire doesn't?

Question

Like when you turn on a match, it has light all over, but when you turn on the oven it turns blue and barely lights anything, why is this?

Answer 1

When you light a flame, the flame gives off heat and light.

In an oven, the blue flame is the sign of an efficiently-burning flame.  It was designed to produce HEAT, and produces less light.  This also has to do with the fueld -- in the oven it is natural gas.

A simple match was designed to be simple rather than efficient.  So it wastes a lot of energy burning the wood of the match. the match. being ratherr innefficient, gives of a lot of light, and only enough heat to start another (bigger) fire.