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Moving to the Frequency!

CSEF · 2008 Plant Biology

Nasser M. Akkari · New Horizon School, Pasadena, Los Angeles County

Overview

Objectives/Goals For my project, I decided to find out if different pitches of sound affect the way a plant grows. My hypothesis was that the different pitches of sound would affect the way a plant grows. Methods/Materials I exposed the plants to 3 different sound pitches (low,medium,high) all at the same volume and all at 44.100 kilohertz. I recorded the plants' growth and health every other night at 7 o'clock P.M. Results After recording for 10 days, I found the medium pitch did the best in height (with an average growth of 5.93 centimeters) while the low pitch did the best in health (with an average health of 1.33). Conclusions/Discussion My hypothesis ended up being correct due to the fact that the growth of the plants were affected by different sound frequencies. The possible reason this happened was because the sound waves caused the plants to vibrate thus altering the way the plants grew.

Summary statement

Will different sound frequencies affect the way a plant will grow?

Help received

My mom helped me make a few decisions on what to use for the materials.

Competition history

  • CSEF 2008 Plant Biology · Entry J1702

Resources

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Source: California Science & Engineering Fair public projects

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