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This science fair project idea shows how a vibrating object transfers energy to whatever it touches.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This science fair project idea demonstrates sonar mapping of the ocean floor.

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.