Matching Pairs Combustion Concepts MatchOnline version Test your knowledge of combustion with this fun matching pairs game! by Alessia Ferrari 1 Exothermic 2 Blue flame 3 Incomplete combustion 4 Bunsen Burner 5 Combustion 6 Fuel 7 Yellow flame 8 Flame Safe flame Visible part of combustion Objet use to heat Produces soot and CO Chemical reaction releasing energy Substance burned for energy Work flame Releases heat during reaction