Three things are needed to burn
Combustibles, oxidants and sufficient ignition energy together constitute the combustion conditions. Without any one of these, the fire cannot last.
Why does it glow and heat?
Chemical energy is released when reactants are converted into more stable products. The light emitted by high-temperature molecules and excited particles makes up the flames we see.
Flame color reveals information
Temperature, fuel composition, and metal ions all affect flame color. The flame color reaction in the laboratory uses the characteristic light emitted by different elements to identify them.
This gave me a useful starting point for further research.
The structure is clear and the pacing works really well.
This is a wonderfully clear way to explain a complicated idea.
Saved this one for a deeper discussion with my classmates.
I had never thought about the material side of this problem before.
The examples make the science much easier to follow.
A very approachable introduction to the topic.
This connects the classroom concept with a real application nicely.