Resonance Bowl with Mat

Grades 5 and Up. High-quality bowl provides a hands-on demonstration of the behavior of waves and frequencies.
Just rub the copper handles, and the vibrations make the water surface ripple
Soon, water droplets shoot up, quickly becoming continuous fountain streams
Silicone material and honeycomb design of mat stop bowl from slipping and prevent vibrations from transferring to table, allowing waves to build higher
The 7 in. mat can withstand temperatures up to 480° F (250° C)
Also includes teacher’s guide