bunsen burners Flashcards
what colour is the flame if the air-hole is fully closed?
yellow
what colour is the flame when the air-hole is fully open?
blue and roaring
what is the flame with a yellow tip called?
safety flame
what is a blue flame called?
the heating flame
where is the cone of unburnt gas?
inside the hottest part of the blue flame
what should you do before using a bunsen burner?
put on safety glasses, tie back long hair, tuck any loose clothing out of the way (e.g. tie), and clear bench/seat; stay standing
what’s the hottest flame?
a blue flame (heating flame)
what do you put over a bunsen burner to balance a beaker above it?
a tripod and gauze mat
what are the steps to lighting a bunsen burner?
- fully close the air hole
- connect your bunsen burner to the gas tap
- strike your match and turn on the gas to light the bunsen burner
what container do you use to boil water?
a beaker
what is the independant variable?
what is changed
what is the dependant variable?
what is measured
