Grade 7 Integrated Science · Strand 1: Scientific Investigation · Laboratory Apparatus & Instruments
Heating Apparatus The Bunsen Burner
A short Grade 7 Integrated Science lesson for the CBE curriculum, part of Scientific Investigation: Laboratory Apparatus & Instruments. Learn it on any phone with notes and slides, then check yourself with a quick quiz and earn XP. This lesson is free.
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5 questions from this lesson’s quiz. Start the lesson to answer them and see the right answers.
1. Which part of a Bunsen burner is rotated to control the amount of air entering the chimney?
- A. Collar
- B. Jet
- C. Gas inlet
- D. Base
2. A pupil heats a beaker of water and finds it covered in black soot, while the water has barely warmed. What is the most likely cause?
- A. The air hole was closed, giving a luminous flame
- B. The air hole was fully open, giving a blue flame
- C. The gas tap was turned off
- D. The burner base was too heavy
3. Which sequence correctly shows the safe way to light a Bunsen burner?
- A. Close the air hole, strike the match, then turn on the gas tap
- B. Turn on the gas tap, open the air hole, then look for a match
- C. Open the air hole fully, turn on the gas tap, then strike the match
- D. Strike the match, turn on the gas tap, then close the air hole
4. A Bunsen burner strikes back: the flame burns at the jet at the base with a hissing noise and the chimney becomes very hot. What should you do first?
- A. Turn off the gas tap on the bench
- B. Hold the collar and close the air hole
- C. Pour water over the burner
- D. Open the air hole wider
5. What name is given to the bright yellow Bunsen burner flame produced when the air hole is closed?
Type your answer in the lesson.
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