<p>I agree with lderochi on the Woodinville chemsistry teacher. He is putting the entire school in danger if he’s scorching ceiling tiles!! An easy fix would be to install a piece of sheet rock over one of the lab tables as a fire wall. That could be the dedicated fire/rocket experiment table & any possible spread of fire from an experiment would have no chance to start & rush through the school’s ceilings & vents. With suspended tiles, there could be a spark that ignites somewhere unseen, then spreads, and lives are lost. What does a piece of sheetrock cost, about $20? Otherwise, this teacher is showing very poor judgment.</p>