Sonic Flame Tube Demonstration Kit for physical science and physics will ignite interest in sound waves. This demonstration allows visualization of waves and resonance.
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Ignite your students’ interest in sound waves! The Sonic Flame Tube, also called a Ruben’s tube, is a demonstration that allows students to visualize waves and resonance. Natural gas is allowed to flow through a 3-foot aluminum tube containing predrilled, evenly spaced holes, and is then ignited. A speaker attached to the opposite end of the tube is used to send specific frequency sound waves through the tube, creating resonance. Watch as the gas flames above each hole move with the frequency, creating a beautiful wave pattern that is due to the formation of nodes and antinodes in the tube. Apparatus may also be connected to an electronic instrument, such as a keyboard. Kit includes all the materials needed to construct one permanent flame tube, along with complete instructions, important safety information and valuable tips for generating resonant frequencies.
Concepts: Sound, compression vs. rarefaction, resonance, standing wave.
Time Required: 25 minutes
Note: A speaker is required and available separately.
Correlation to Next Generation Science Standards (NGSS)
Science & Engineering Practices
Developing and using models
Constructing explanations and designing solutions
Disciplinary Core Ideas
MS-PS4.A: Wave Properties
HS-PS4.A: Wave Properties
Systems and system models
Stability and change
MS-PS4-2. Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.