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