Resounding Frogs

Introduction:The "Resounding Frogs" project is about the different sounds that different sized wooden frogs make. All you do is listen to the sound as you rub as wooden stick on the curves on its back.

Materials:You can buy the different sized wooden frogs online.

Procedures: Hold the frog/frogs by the hind legs and rub the stick away from you on the curves of its spine.

Scientific Principle: When you rub the spine with a wooden stick, it creates vibrations that go through its hollow body and projects a sound.This has to do with Natural Frequency and Resonance. Natural Frequency with when an object vibrates and creates a sound. Resonance occurs when a sound becomes higher due to the difference of wavelengths produced by the vibrations. The smaller the frog the higher the pitch. The larger the frog the lower the pitch.

Safety Regulations: Don't bring fire near the project and don't handle them roughly.