Elementary (ages 5-10)

Make a flaming tube to explore the physics of waves and acoustics.

The Ruben's Tube should be used with caution and vigilance, especially if used indoors. 

 

Build a simple Chladni plate using a 6" x 6" metal sheet, a 2 watt speaker, powered with a 20 gain amplifier and phone. Sprinkle sand on the sheet, and play various sound frequencies to reveal the sheet's assortment of resonant vibrational modes. 

Along with the plate demo itself, an amplifier can be made fairly easily with an LM386 op amp. Download instructions for making the amplifier under associated files or can be found here

Explore the properties of liquid nitrogen while making a tasty treat. This demo is great for chapter socials and smaller outreach events.

Tuning forks are one of the few instruments that resonate with one distinct frequency. Create a workshop with tuning forks with this variety of quick, fun demos ranging from visualizing sound with lasers, to watching energy transfer through pendulums.

This demonstration dramatically shows how not just the strength of a material, but how it is designed, is important when withstanding forces.

Participants learn about impulse by building vehicles to drop eggs in. 

A sugar-water solution is used to create a liquid with a variable index of refraction. Participants learn about solutions, gradients, and refraction.

Students learn about glass, how glass is formed, and under what conditions that can occur.

By constructing a simple straw “oboe,” participants learn about sound waves and closed pipe resonance. 

This workshop uses marshmallows to teach participants about waves and to calculate the speed of light. 

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